It is not possible to find Permian rocks beneath Devonian rocks.
What are Devonian rocks?Between the conclusion of the Silurian, 419.2 million years ago, and the start of the Carboniferous, 358.9 Mya, the Devonian is a Paleozoic geologic epoch and system that lasted 60.3 million years.
The upper Etonvale Formation contains the earliest Devonian rocks that have been found so far, which are sandstones and shales with carbonates (including dolomite) and some salt.
When rocks weather over time in a climate that alternates between warm, humid conditions and dry spells, iron oxide (rust) is created. An ancient watertable's level is shown by the white sediment at the top.
Thus, it can not possible to find Permian rocks beneath Devonian rocks.
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select all that apply which of these are characteristics of cancer cells? multiple select question. uniformity extra dna irregular shape regular shape variation in shape and size
Extra DNA, irregular shape, and variation in shape and size are characteristics of cancer cells. Here options B, C, and E are the correct answer.
Cancer cells have several defining characteristics that distinguish them from normal, healthy cells. Some of these include:
Extra DNA: Cancer cells often have additional genetic material in the form of extra chromosomes or DNA mutations that drive uncontrolled growth and division. Irregular shape: Unlike normal cells, which have a well-defined and uniform shape, cancer cells often have an irregular shape that is not uniform.
Variation in shape and size: Cancer cells can also vary in size and shape, indicating a lack of regulation and control over cell growth and division. These characteristics can be used to identify and diagnose cancer and also to determine the type of cancer and its potential for spreading.
Complete question:
select all that apply which of these are characteristics of cancer cells? multiple select questions.
A - uniformity
B - extra DNA
C - irregular shape
D - regular shape
E - variation in shape and size
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fructose transport across the membranes of epithelial cells in this model requires active transport mechanisms.
Fructose transport across the membranes of epithelial cells in this model requires active transport mechanisms. and The 8 statement is True ,9.false,10.true 11.false,12.false
A monosaccharide is a form of sugar that includes fructose. Like other sugars, fructose has four calories per gram. Because it is largely found naturally in many fruits, fructose is also referred to as "fruit sugar." Other plant foods including honey, sugar beets, sugar cane, and vegetables also naturally contain it. The sweetest naturally occurring carbohydrate is fructose, which is between 1.2 and 1.8 times sweeter than sucrose (table sugar).
8.True because fructose transport from lower concentration to higher concentration that's why ATP is needed for energy supply .ATP dependent transport is active transport.
9.false because calcium present in cytoplasm of cell is lower concentration lumen is higher concentration. If k+/Ca2+ channel is stop then calcium in cytoplasm is decrease.
10.true because fructose concentration is constant in cell , so net absorption is fructose transport from lumen of intestine to lumen of blood vessels .
11.false because fructose concentration in cell is high so it is hypertonic to the lumen.
12.false because fructose concentration in cell is high so water enter into the cell.
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Isolates of nonmotile and nonpigmented enterococci that are resistant to vancomycin can be assumed to have an acquired resistance by the transfer of which of the following genes?
A. van A and van C genes
B. van B and van C genes
C. van A and van B genes
D. mec A and van C genes
Isolates of nonmotile and nonpigmented enterococci that are resistant to vancomycin can be assumed to have an acquired resistance by the transfer of C. van A and van B genes
These genes encode for enzymes that can modify the target of vancomycin, making it ineffective against the bacteria.
This resistance is a result of horizontal gene transfer, in which the genes are acquired from other bacteria through mechanisms such as conjugation, transduction, or transformation.
Isolates of nonmotile and nonpigmented enterococci are strains of bacteria that are commonly found in the gut of humans and animals.
They can cause infections in hospital settings, especially in patients with weakened immune systems. The development of antibiotic resistance in these bacteria has become a growing concern in recent years.
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What is the primary benefit of perennial plants?
A) Increased crop yields
B) Decreased pesticide use
C) Increased nitrogen fixing
D) Easy integration of crop rotation
E) Decreased erosion
The primary benefit of perennial plants is decreased erosion.
Perennial plants are those that live for more than two years and typically grow back each year from their roots. This persistent growth provides a permanent cover on the soil, which helps to reduce erosion. Unlike annual crops, which are grown from seed each year and are left bare over the winter, perennials offer continuous protection to the soil, reducing the impact of wind and water and helping to keep the soil in place. This can lead to improved soil health and fertility, as well as decreased runoff, which can have a positive impact on water quality.
Perennial plants also have other benefits, including increased nitrogen fixing, which can improve soil fertility, and the easy integration of crop rotation. However, the primary benefit of perennials is their ability to reduce erosion and provide a permanent cover on the soil.
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1 point,
Convert from one unit to the other. 556 kilocalories = type your answer.. calories
Answer: yeo
Explanation: yeo yeo yeo yeo, yeo yeo yeo yeo. Yeo yeo yeooooo
In cats short hair is dominant over long hair; the gene involved is autosomal (that is, not on the sex chromosomes). An allele, B1, of another gene, which is sex-linked, produces yellow coat color; the allele B2 produces black coat color; and the heterozygous combination B1 /B2 produces tortoiseshell (calico) coat color. If a long-haired black male is mated with a tortoiseshell female homozygous for short hair, what kind of kittens will be produced in the F1? If the F1 cats are allowed to interbreed freely, what are the chances of obtaining a long-haired yellow male?Please show some work if give an explanation.
The F1 offspring of a long-haired black male and a tortoiseshell female homozygous for short hair will have a genotype combination.
Combination of both parents, resulting in short-haired kittens with black and tortoiseshell homozygous coat color. The yellow color is determined by a sex-linked gene, which is present only in females, thus there is no chance of obtaining a long-haired yellow male through combination interbreeding homozygous of the F1 cats. The absence of the long hair gene in the female parent will also ensure that combination the offspring produced will only have short hair. So, homozygous nature is the reason is in cats short hair is dominant over long hair;
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plasmids that govern their own transfer are known as plasmids that govern their own transfer are known as transformable. conjugative. transfective. transmutable.
Transformable. Physically distinct from chromosomal DNA, plasmids multiply on their own.
They normally contain only a few genes, including some linked to antibiotic resistance, and they can spread from one cell to another. The method by which exogenous DNA is introduced into the host cell is known as plasmid or vector transformation. While the term "transfection" is typically reserved for mammalian cells, transformation typically refers to the uptake of DNA into bacterial, yeast, or plant cells. Molecular biotechnology has benefited greatly from the development of plasmids. They serve as vectors, or delivery systems, for introducing foreign DNA into bacteria. In the 1970s, DNA from other creatures was initially "cut and pasted" into particular locations inside the plasmid DNA, which marked the beginning of the use of plasmids for DNA delivery.
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what is the rationale behind the use of animal models to understand the human brain?
To understand the human brain, animal models are used because they have similar anatomy and physiology to humans.
The human brain is a complex and intricately connected system, making it difficult to study and understand directly. As a result, researchers often turn to animal models as a means of gaining insight into the brain. By studying the brains of other species, researchers can gain a better understanding of brain structure, function, and development.
Animals such as mice, rats, and monkeys have similar brain anatomy and physiology to humans, making them useful models for studying the brain. For example, some regions of the brain, such as the cortex and the hippocampus, are highly conserved across species.
This means that the basic structure and function of these regions are similar across species, allowing researchers to make predictions about the human brain based on what they learn from animal models.
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microorganisms that are free living are to chemical disinfectants than microorganisms in a biofilm. multiple choice question. less resistant
Microorganisms that are free-living are to chemical disinfectants than microorganisms in a Less resistant
An organism that is microscopic is technically referred to as a microorganism or microbe. Microbiology is the field of study that focuses on microbes. It is possible for microorganisms to be bacteria, fungi, archaea, or protists. Virens and prions, which are typically categorized as non-living entities, are not considered to be microorganisms.
In the study of microorganisms, in particular, there is currently a lot of debate regarding the organization and classification of life. Prokaryotes, which are cells devoid of internal membrane-bound organelles and include the majority of microorganisms, and eukaryotes, which are cells with internal membrane-bound organelles and include protists, fungi, plants, and animals, are the two basic categories into which living organisms are divided.
The two kingdoms of living things—plants and animals—were usefully distinguished before the invention of the microscope. Nevertheless, this division was inadequate—what about fungi? Kingdom taxonomists have defined the term today.
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the large circular cavity in each side of the pelvis that articulates with the head of the femur to form the hip joint, commonly known as the hip socket, is also referred to as the:
The commonly known hip socket present in the the pelvis region is also known as the Acetabulum.
The pelvis region of a human being contains a socket known as the hip socket or the Acetabulum. This socket is responsible as it is the socket connecting the head of of the femur within the human body with itself which forms the hip joint. This socket is present at the lateral surface of the pelvis region within the human body. Hip joint is important as it provides stability within the human body and this joint helps the human body to sit and sleep. Acetabulum is formed when three pelvic bones fuse forming a cavity like structure, The three pelvic bones fused together to form the Acetabulum are the Ilium, the Ischium and Pubis.
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Low temperature refrigeration ranges from what temperature?
The low temperature refrigeration are basically defined as those applications which require the evaporator temperatures that are in the range of -20°F down to -250°F.
Low temperature refrigeration, which is also known as cryogenic refrigeration is known to broadly have temperatures below -35°F but can have temperature ranges anywhere between -20°F to even -250°F. A big majority of the installations mostly have temperatures which are the -125°F threshold.
This process is very widely used in the commercial as well as several industrial processes which require big require big refrigeration capacities. Some examples can be maintenance of beverages, foods and other items.
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COMPARE THE APPROPRIATENESS
OF THE
PERCENTAGE
COMPOSITIONS OF
THE TWO PRODUCTS?
It's easy to understand percent composition. The mass percentage of each element in a compound is indicated by the composition, or percent. Adding two or more elements together creates a chemical complex.
What is percent composition?It's easy to understand percent composition. The mass percentage of each element in a compound is indicated by the composition, or percent. Adding two or more elements together creates a chemical complex. Discovering the percentage composition of a specific element within a chemical compound can be useful if you're researching one. Mass of element/molecular mass multiplied by 100 gives the percent composition. Following these methods will help you determine an element's percentage composition in a compound.Solving Process:
Calculate the compound's molar mass, expressed in grams per mole, for each component.Identify the total compound's molecular weight.Subtract the whole molecular mass from the molar mass of the component.A number between 0 and 1 will now be available to you. To determine the percentage of component, multiply it by 100.Ideas for resolving:
Since the compounds will always sum to 100%, in a binary compound you can discover the percentage of the first element and then divide 100% by (first element) to get (second element) percentage. If using a calculator, you can save the total molar mass to a variable like "A." Calculations will go faster as a result, and typos will be less often.To Learn more About percent composition Refer To:
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Directions: Circle the letter that corresponds to the correct answer. 1. Tropism is a growth or turning movement of a plant in response to - a. a response b. a stimulus c. a reaction d. an effect Tropisms Lab Quiz 2. Geotropism is a type of tropism where the plants growth responds to - a. light b. touch c. gravity d. water 3. How is phototropism beneficial to a plant? a. It helps the plant to get the most amount of light possible. b. It helps the plant by providing support. c. It helps the plant to get nutrients and water that are deep in the soil. d. It helps the plant to grow a deep root system. 7th Grade Science Unit 8 4. Which of the following tropisms are the same as geotropism? a. thigmotropism b. hydrotropism c. phototropism d. gravitropism 5. A student conducts an experiment where he places a light source below a plant. Over a three week time period he observes the plant's growth. Which of the following would he observe at the end of the three weeks. a. Roots would grow up out of the pot and then down towards the light. b. The plant stem would grow up and roots would grow down. c. The plant would start to bend over and grow downwards toward the light. d. The plant would wilt and die. 6. Over and extended period of time a student observes how a particular plant comes in contact with a metal pole and begins to wrap around the pole and grow upwards. Which type of tropism is the plant responding to? a. geotropism b. hydrotropism c. phototropism d. thigmotropism
A tropism is the innate ability of an organism to turn or move in response to a stimulus.
What is mean by tropism?Tropism is the movement of a plant in response to an environmental stimulation. A plant will migrate toward a stimulus when it exhibits positive tropism. When a plant travels away from a stimulus, it exhibits negative tropism.
There are many different types of tropism, such as phototropism (response to light), geotropism (response to gravity), chemotropism (response to specific substances), hydrotropism (response to water), thigmotropism (response to mechanical stimulation), thaumatropes (response to wound lesion), and Galvano tropism, also known
Positive tropism, or growth toward a stimulus, is distinguished from negative tropism, or growth away from a stimulus. Phototropism, gravitropism, thigmotropism, hydrotropism, thermotropism, and chemotropism are examples of common tropic reactions in plants.
The reaction of a living thing to light is called phototropism (photo-light), whereas geotropism (geo- gravity) is the response of an organism to gravity.
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The mother of four small children comes to the clinic and has just been diagnosed with an enterocele. What should the nurse teach the client about her diagnosis?
O Her small intestine and peritoneum are jutting downward between the uterus and the rectum.
O Her rectum is protruding into the back wall of the vagina.
O Her uterus has prolapsed and is causing this bulge.
O Her bladder is bulging into the front wall of the vagina.
The nurse should teach the client diagnosed with enterocele that: (1 Her small intestine and peritoneum are jutting downward between the uterus and the rectum.
Enterocele is the condition of small bowel relapse. This is the out of place slipping of the small intestine into the lower pelvic cavity. The condition rarely becomes serious and may be treated without any surgical processes. The symptoms include pulling sensation in pelvis and peeling of fulness or pressure.
Peritoneum is the covering of smooth tissue that lines the abdominopelvic cavity. Its functions is to protect and insulates the pelvic organs and also support them to hold them in place.
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molecular clocks typically use non-coding dna or synonymous mutations to determine differences between species pairs. why is that? what would happen if you use coding regions to calibrate the molecular clock?
The sub-atomic clock is a metaphorical term for a procedure that utilizes the transformation pace of biomolecules to conclude the time in ancient times when at least two living things separated.
The biomolecular information utilized for such computations is generally nucleotide arrangements for DNA, RNA, or amino corrosive successions for proteins.
The sub-atomic clock can likewise be utilized for placing a progression of transformative occasions into sequential requests. This is finished by contrasting successions from various species with deciding when they last shared a typical predecessor, essentially drawing the genealogical record.
Sub-atomic timekeepers are utilized to decide how intently two species are connected by ascertaining the number of contrasts between the species' DNA arrangements or amino corrosive successions. These timekeepers are some of the time called quality tickers or transformative clocks.
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The structure of n-hexane also consists of six carbon atoms bonded in a linear chain. However, n-hexane contains no oxygen atoms, and the carbon chain is bonded only to hydrogen in the form of C–H bonds. Compare some properties of glucose and n-hexane that result from these differences in functional groups.
Hydrogen iodide causes glucose to totally decrease after heating, producing n-hexane. Reducing agent hydrogen iodide is used.
What is glucose?The primary form of sugar in the blood, glucose serves as the body's cells' main source of energy.
Glucose can be produced by the body from other chemicals or it can be obtained from the meals we eat. The bloodstream carries glucose to the cells. Insulin is one of many hormones that regulate blood glucose levels.
When pure, hexane is an odourless liquid with a boiling point of about 69 °C (156 °F).
Modern gasoline blends contain roughly 3% hexane because it is widely utilised as a cheap, generally safe, mainly unreactive, and easily evaporizable non-polar solvent.
Thus, these are some properties of glucose and n-hexane that result from these differences in functional groups.
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If differences exist within a population then when the environment changes certain organisms will have. A survival reproduction advantages over others And those will change the _ of the various genes
Benefits for a surviving reproduction over others And those will alter how various genes have evolved adaptively.
Describe a gene.The fundamental structural and physiological component of transmission is a gene. This same basic component of reproduction is thought to be the gene. Parents pass on their genes to their children, which include the data required to define their physical and biological features. The majority of genes produce distinct antibodies or portions of enzymes, each of which performs a different function throughout the body.
Is DNA a gene?Deoxyribonucleic acid (DNA) is a component of genes, which put out a specific molecular basis in one or perhaps several types of biological cells. The 23 genes structures seen in cells are where a child's genes are located. Sister chromatids, that have been a part of every cell, contain genes.
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what postulate of cell thoery explains this?
The cell theory was renamed modern cell theory after the incorporation of this postulate. Theodor Schwann put forth the classical cell theory in 1839.
The concept of "Omnis Cellula e Cellula," which states that all live cells develop from pre-existing cells, was first put forth by scientist Rudolf Virchow in the year 1858. This theory consists of three components. All organisms are composed of cells, according to the first section. The basic building blocks of life are cells, according to the second section. All living things consist of at least one cell, the cell is the fundamental building block of life, and all cells originate from previously existing cells are the three postulates of the cell theory.
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consider an lti system with the impulse response h(t) = sin(150πt) πt . consider an input signal x(t) = cos(200πt) sin(100πt) πt . what is the output signal y(t) for this input?
The output signal y(t) for this input is y(t) = π/2 cot(t).
A linear time-invariant (LTI) system is a system that creates an output signal from any input signal while adhering to the requirements of linearity and time-invariance. The most basic example that comes to mind is a servo motor system with a friction term that changes over time (for example, when the bearing lubricant heats up). A missile or rocket is a more complicated system in which the mass reduces as fuel is spent.
When a system is both linear and time variant, it is referred to as a linear time variant (LTV) system. If a system is both linear and time invariant, it is referred to as a linear time invariant (LTI) system.
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what is the substance outside of the cell's nucleus called?
Cytoplasm refers to the material outside of the cell's nucleus.
What is cytoplasm?A gel-like substance called cytoplasm covers a cell's interior and encircles the nucleus. It is made up of a variety of materials including water, salts, sugars, organic compounds, and others.
What is the function of cytoplasm?The majority of a cell's metabolic activities, such as protein synthesis, the oxidation of carbohydrates to release energy, and the movement of molecules into and out of the cell, occur in the cytoplasm. It also includes a range of cellular organelles that are crucial for cellular metabolism and function, including ribosomes, mitochondria, and endoplasmic reticulum.
In addition to performing metabolic tasks, the cytoplasm supports the cell structurally and aids in preserving the integrity and shape of the cell. It also includes the cytoskeleton, a protein network that helps the cell move and maintain stability.
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why do you think the shark is colored this way
Sharks are colored for camouflage or for visual communication with other sharks.
Sharks are colored for a variety of reasons, depending on the species. One reason is camouflage, which helps the shark blend into its surroundings and avoid detection by predators or prey. Many species of shark have a coloration pattern that resembles the ocean floor, making it difficult for other animals to see them. Another reason for shark coloration is visual communication with other sharks. For example, some species of shark display bold patterns or bright colors to signal aggression camouflage or to attract a mate. The specific pattern or coloration can vary greatly between camouflage species and may serve different purposes in different environments. Understanding why sharks are colored the way they are can provide insight into the ecology and behavior of these fascinating and important animals.
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23. In which location would energy be transferred more quickly between the
atmosphere and Earth's surface?
A. a lake where the air 5°C
B. an ice sheet where the air 5 °C
the fetus develops fingers and toes only during a time window between 28 and 54 days after conception. this is an example of: please choose the correct answer from the following choices, and then select the submit answer button. answer choices epigenetics. a sensitive period. a critical period. discontinuity.
The development of fingers and toes within the fetus is an example of Critical period that is option C is correct.
There are different phases in the development of the fetus within the human body. It is necessary that the fetus gets all the nutrients required for its proper growth from the parent. Also care should be taken from any kind of physical accident as it may cause damage in the interior organs and development of the fetus. Usually the critical period is the period within which the fingers and toes of a fetus are developed and absolute precaution is to be taken as if there will be any discrepancy then the fingers and toes might get stuck to each other or their development might get affected.
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Complete Question:
The fetus develops fingers and toes only during a time window between 28 and 54 days after conception. This is an example of:
a. epigenetics.
b. discontinuity.
c. a critical period.
d. a sensitive period.
which of the following statements about epsps in the central nervous system is false? which of the following statements about epsps in the central nervous system is false? a single epsp can generate an action potential. epsps occurring close together in time can summate and help bring a neuron to threshold. their effect in the central nervous system can be nullified by ipsps. multiple epsps arriving together at different locations on the dendritic tree can summate and help bring a neuron to threshold.
The statement single epsp can generate an action potential is false about epsps in the central nervous system .
Excitatory postsynaptic potentials (EPSPs) are connected to transmitter-induced increases in the synaptic membrane's Na+ and K+ conductance, which cause the membrane to depolarize and allow for the net entry of positive charge carried by Na+.
It is known as the excitatory neurotransmitter because of how prevalent it is in excitatory synapses.
Excitatory postsynaptic potentials (EPSPs) is synaptic inputs that drive the postsynaptic cell to depolarize, putting the membrane potential closer to the action potential threshold.
A postsynaptic membrane transient depolarization known as an excitatory postsynaptic potential (EPSP) is brought on by the entry of positively charged ions into the postsynaptic cell as a result of the opening of ligand-sensitive channels.
Sodium channels engage in response to a stimulus, producing in an excitatory postsynaptic potential (EPSP). A rush of sodium into the cell as a result of the electrochemical gradient.
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Complete the following table olution direction of water movement where i the olute concentration hightet?
The Hypertonic solution's direction of movement is out of the cell, the solution of hypotonic solution's direction of movement is into the cell and the Isotonic solution's is having no net movment.
The development of water across a cell film is impacted by the grouping of solutes on one or the other side of the layer. Assuming that the convergence of solutes is higher external the cell contrasted with inside, the arrangement is thought of as hypertonic. For this situation, water will move out of the cell to attempt to adjust the focus on the two sides. Assuming that the centralization of solutes is higher inside the cell contrasted with outside, the arrangement is thought of as hypotonic and water will move into the cell. On the off chance that the grouping of solutes is equivalent on the two sides, the arrangement is viewed as isotonic and there will be no net development of water across the layer.
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Please help me.
list the familiar classifications and write out what they mean. An example is done for you.
Kingdom Animalia: Animal
a)
b)
Genus Canis: Canines
Answer:
Pointy snout, floppy or standing ears (based on breed), heavily or lightly furred (based on breed), black nose, big or little paws (based on breed), color based on breed.
Explanation:
Describe how selective breeding has been used to produce chickens bred for meat.
Answer:
See Below
Explanation:
The largest chickens are chosen for breeding which produces larger chicks which also grow into large chickens. This continues until you have extremely large chickens which are made for meat production. Something similar happens for sheep where the fluffiest are bred together to create fluffier offspring.
which of the following statements regarding anaerobic metabolism is correct? select one: a. anaerobic metabolism can be supported in most cells for only 1 to 3 minutes. b. the lactic acid produced by anaerobic metabolism is needed to make energy. c. anaerobic metabolism is a normal process that occurs in the presence of oxygen. d. the waste products of anaerobic metabolism are carbon dioxide and water
Among the following statements regarding anaerobic metabolism, the correct one is (b) the lactic acid produced by anaerobic metabolism is needed to make energy.
When there is a lack of oxygen in an animal cell, a process known as anaerobic respiration can take place. The production of lactic acid as a byproduct of the anaerobic metabolism of glucose is what ultimately results in metabolic acidosis.
In contrast to anaerobic metabolism, which does not require oxygen but generates only two molecules of ATP for every molecule of glucose, aerobic metabolism produces a greater amount of ATP and is dependent on oxygen. However, both anaerobic and aerobic metabolism are necessary in order to complete the process of producing cellular energy.
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which hormone is a very effective antioxidant, one that may protect cns neurons from free radicals such as nitric oxide (no) or hydrogen peroxide (h2o2)?
The hormone which is a very effective antioxidant, one that can protect the neurons of the central nervous system from free radicals such as nitric oxide (no) or hydrogen peroxide (h2o2) is melatonin.
Hormones are chemical substances that are produced and secreted by the endocrine glands into the blood in very small amounts. Hormones travel through the bloodstream to affect the activity of certain cells, tissues or organs of the body.
Melatonin is a hormone produced by the pineal gland, a gland in the brain that is the size of a pea. This hormone is produced naturally at night by the brain to protect the neurons of the central nervous system from free radicals. This is because melatonin contains anti-oxidants which can neutralize radicals by donating electrons. In addition, this hormone helps regulate and signal when it is time to sleep and when to be awake
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what is the link between parkinson's disease and stem cell research? parkinson's disease occurs because of lack of stem cells. studies with rats have shown how stem cells encourage the progressive loss of dopamine-producing cells associated with parkinson's disease. researchers have managed to generate induced pluripotent stem cells, which may differentiate into dopamine-producing neurons. patients with parkinson's disease produce a particularly promising type of neuronal stem cell that may be used to treat other neurodegenerative disorders.
As has been said, the main goal of stem cell therapies is to cure the motor symptoms of Parkinson's disease (PD). They won't have any disease-modifying effects and won't cure the main non-motor symptoms, which in certain people can be extremely crippling.
Parkinson's disease is a chronic condition that affects both the neurological system and the bodily components that are under the control of the nervous system. Symptoms emerge gradually. The initial sign could be a slight shake in just one hand.
The substantia nigra, a region of the brain, loses nerve cells, which results in Parkinson's disease. Dopamine is a neurotransmitter that is made by cells in the brain in this region of the brain.
Parkinson's disease (PD) seems to be the second most common neurological ailment in the US, after Alzheimer's disease. However, an estimated five and ten percent of those with PD are thought to be between the ages of 5 and 60.
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