Enzymes are said to be specific because an enzyme binds to only one or one group of substrates for its activity.
The enzyme's specificity is a property that indicates how restricted the enzyme is in its substrate selection; There would only be one substrate for a completely unique enzyme. Specificity is the capacity of an enzyme to select a specific substrate from a variety of chemically similar compounds. Specificity is a molecular identification process due to the complementary structural and conformational properties of the enzyme and substrate. Since the specific substrate must fit into the enzyme's active site before catalysis can take place, only well-designed molecules can be enzyme substrates; An enzyme will frequently react with a single naturally occurring molecule or substrate.
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What reflects the primary routes of exposure to bloodborne pathogens?
Answer:needlestick injuries
Explanation:
Blood borne pathogens are the infectious microorganisms inside human blood that cause disease in humans. The primary route is mucous membranes and the fluids through the body.
What is mucous membrane ?The moist, inner lining of some organs' body cavities such as internal organs . Glands of the mucous membrane have mucus also called mucosa.
For a blood borne pathogen to spread, the bodily fluids of an infected person must enter into the bloodstream of another person. The most important agent of transmission in the workplace is when an infected person's blood enters another person's bloodstream through an open wound.
Unprotected openings of skin. Blood borne pathogens can be transmitted through cuts, scrapes, or any other open wounds. Mucous membranes and Penetration of skin.
Blood borne diseases should be clearly checked if there is any kind of pathogenic results or the outcomes happening in the blood.
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Which of the following is a health effect of air pollution?
A. cholera
B. lung damage
C. roseola
D. influenza
Answer:
it has to be lung damage trust ne
What’s the correct answer answer asap for brainlist nobody will help me or answer
The water cycle is grouped as biogeochemical cycle. The water cycle is often taught as a simple circular cycle of evaporation, condensation, and precipitation.
Why is water cycle a biogeochemical cycles?Water and components like carbon and nitrogen are recycled, whereas energy moves through an ecosystem. The environment is continually recycling nutrients and water. A biogeochemical cycle is the term used to describe the continuous recycling of a chemical element or water within an ecosystem. Both living creatures (biotic components) and nonliving objects (abiotic elements) in the ecosystem are involved in this recycling process. Water and other chemical elements are continuously transferred through living things to non-living things and back again through biogeochemical cycles. The water cycle, carbon cycle, and nitrogen cycle are three significant biogeochemical cycles.
The biogeochemical cycle that recycles water is the water cycle.
What is biogeochemical cycle?Any of the natural processes by which the fundamental components of biological stuff are transferred. The phrase "biogeochemical" is an acronym for the idea of taking each cycle's biological, geological, and chemical components into account.
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describe the structure and the function of the testes
Testes are responsible for producing testosterone (primary male sex hormone), androgens hormones, and sperm. It is an ovular-shaped structure formed from tubes surrounded by dense connective tissue.
Why will the loss of photosynthetic organisms eventually cause a problem for animals ?
Earth has major land biomes.
Yes earth has major earth biomes.
What is earth biomes?
biomes . A biomes is an area classified according to the species that live in that location. Temperature range, soil type and the amount of light and water and are unique to a particular of the place and form the niches are for the specific species allowing scientists to define the biomes .
There are five major types of biomes aquatic, grassland, forest, desert, and tundra, though some of these are biomes can be further the divided into more specific categories, such are the e.g like - freshwater, marine, savanna, tropical rainforest, temperate rainforest, and the taiga. Aquatic biomes and include both freshwater and marine biomes.
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What is the process where the mitochondria converts chemical energy into food stored into compounds?
Is it cellular respiration or oxidative phosphorylation?
Answer:
oxidative phosphorylation
Explanation:
Which of the following correctly describes the development of Earth's atmosphere?
A Hydrogen and nitrogen gas, oxygen formed, hydrosphere forms, ozone layer formed
B Hydrogen and helium gas, hydrosphere forms, oxygen formed, ozone layer forms
C Hydrogen and helium gas, hydrosphere forms, ozone layer forms, oxygen formed
D Hydrosphere forms, oxygen formed, ozone layer forms, hydrogen and helium gas
The answer is A because oxygen Hydrogen and Nitrogen are what are in the atmosphere
It is not Radioactive dating so don't pick that one
What describes using organisms that were only alive during a specific time period to estimate the unknown age of items?
Radioactive dating
Law of superposition
Relative dating
Index fossils
Geological periods are defined using index fossils. These fossils are frequently encountered, widely scattered fossils with a small time span. Therefore, option (D) is the correct answer.
What is index fossils?A fossil found in a relatively brief period of geological time that can be used to date the strata in which it is found is called Index fossils.
A relevant index fossil must be unique or easily recognizable, numerous, have a broad geographic distribution, and have a short temporal span. Index fossils serve as the foundation for identifying geologic time scale boundaries and strata correlation.
Therefore, index fossil describes using organisms that were only alive during a specific time period to estimate the unknown age of items.
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what does food and water affect homeostasis of a population
Food and water affect the homeostasis of a population because they are required nutrients to maintain the state of internal equilibrium in biological systems.
What are homeostasis conditions?Homeostasis conditions refer to all inputs from the surrounding environment that are required for biological systems in order to maintain the state of internal equilibrium, which is fundamental to sustaining life in organisms.
Water and foods are fundamental to maintaining the state of internal equilibrium or homeostasis conditions because they are required to carry out metabolic activities such as reproduction, growth, differentiation, etc, thereby the absence of these nutrients lead to the death of biological systems.
Therefore, with this data, we can see that homeostasis conditions are associated with the state of equilibrium of biological systems, which require the input of nutrients such as foods and water in order to carry out metabolic activities.
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Approximately 30 - 32 molecules of ATP are produced from the complete oxidation of one molecule ofglucose (C6H12O6) in aerobic cellular respiration. Explain reasons why the number of ATP is not knownexactly
One glucose molecule produces 4 ATP, 2 NADH, and 2 pyruvate molecules during glycolysis. Although 4 ATP molecules are produces in the second half, the net gain of glycosis is only 2 ATP because 2 ATP molecules are used in the first half of glycolysis. If the cell cannot catabolize the pyruvate molecules further via the citric acid cycle, it will harvest only 2 ATP molecules from one molecule of glucose.
Glycolysis is the sole source of ATP. If glycolysis is disrupted, the RBC fail their ability to control their Na-K pumps that need ATP to function, and eventually, they die. If the second half of glycolysis slows or stops in the absence of NAD+ or when NAD+ is unavailable, RBC will not produce a sufficient number of ATP in order to survive.
The number of ATP has been estimated between 35 to 30. The total number of ATP is not known exactly due to variance in the degree of coupling between the flow of protons through the ATPase and electron transport ATP which is the energy currency of the cell.
This is physical science
Pressure and Pascal's Problems
1. A bronze statue weighs 2400 N. It's base is about 2m². What is the pressure the statue
exerts on the floor?
(P=FA P = F A) Pressure is equal to force divided by area. The equation demonstrates that whereas area and pressure are inversely related, respectively, to force. Pressure grows at a constant area as the size of the force exerted grows as well.
Pressure (p=F/A) is the force applied divided by the area perpendicular to the plane on which it is applied.
Explanation:
Force x Area= Equals Pressure
P = 2400 / 2
P = 1200 Nm^-2
Answer:
1200 pa
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Whick of the following is the best tittle for this passage ?
The life of a blind person is the best title for this passage.
The text describes a blind person's life. It says nothing about the person's desire to see the world or their dread of going blind. There are no issues related to the doctors in the text, hence it cannot be a biography because it does not go into detail about Mary's life history.
Aside from navigation, blind persons can carry out nearly all of the daily tasks performed by sighted people. They are independent and capable of cooking and doing makeup. With the use of accessible products or technologies and their own willpower, blind people can live independent lives.
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Which kind of signal is produced by the heart cardiacs and triceps of the arm
Answer:
Bones also protect the organs in our bodies. The skull protects the brain and forms the shape of the face. The spinal cord, a pathway for messages between the brain and the body, is protected by the backbone, or spinal column. The ribs form a cage that shelters the heart and lungs, and the pelvis helps protect the bladder, part of the intestines, and in women, the reproductive organs.
Explanation:
Bones are made up of a framework of a protein called collagen , with a mineral called calcium phosphate that makes the framework hard and strong. Bones store calcium and release some into the bloodstream when it's needed by other parts of the body. The amounts of certain vitamins and minerals that you eat, especially vitamin D and calcium, directly affect how much calcium is stored in the bones.
Answer:
The heart cardiacs produces ElectroCardiogram Signals (ECG)
Triceps produce ElectroMechanical Signals
Explanation:
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Albedo is the reflectivity of a surface. Surfaces that are very reflective, have high albedo. Which BEST describes the historical albedo of the earth?
A. More than 50 percent
B. Less than 50 percent
C. Exactly 100 percent
D. Exactly o percent
The correct answer is option B.
When the light hits the Earth, a particular amount of light is reflected back. This reflected rays of light is called albedo.
There are few places through which the light gets reflected and these are the lighter places.
The surface that reflects the most are lighter places like ice and the places that doesn't reflect are the dark places like soil.
The best historical albedo was seen in 1970s. During that period, the reflection was high and also during winters the amount of ice formation was also good.
After that due to the global warming, the percentage went down. Albedo is the reflecting light and if the light isn't trapped then the temperature tends to come down. We can say, the higher the albedo of the surface, the cooler will be the surroundings.
The best percentage of albedo in 1970s was around 30% which was historical albedo of the Earth.
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What’s the correct answer answer asap for brainlist
Option 1: A definite dry and wet season.
Explanation:savanna, also spelled savannah, vegetation type that grows under hot, seasonally dry climatic conditions and is characterized by an open tree canopy (i.e., scattered trees) above a continuous tall grass understory (the vegetation layer between the forest canopy and the ground).
sorry if it's wrong im not always accurate but if it is correct hoped it helped :D
Why might it not always be possible to determine the reactants and the products in a reaction? Explain your answer in terms of chemical equilibrium.
It might not be possible to always determine the reactants and products in reactions because reactants can be products just as products can be reactants in some reactions.
What are reversible reactions?Reversible reactions are reactions that proceed in both forward and backward directions.
The forward reaction is for the synthesis of products while the backward reaction synthesizes the reactant back as they are known in non-reversible reactions.
For example, consider this reaction: [tex]A + B < --- > C + D[/tex]
In the forward reaction, A and B are acting as the reactant while C and D are the products. In the backward reaction, C and D are the reactants while A and B are the product.
In reversible reactions, the forward reaction proceeds, but as soon as products are formed on the other side, both forward and backward reactions occur simultaneously, although at an unequal rate.
Reaction continues until a chemical equilibrium is reached. Both the forward and backward reaction proceeds at an equal rate.
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what animals have long lifespan and why
One of the features that can make an animal to have a long lifespan is the size, due to the protection conferred by its size. Also, some animals like the elephant and the whale, have a slow cell replication rate, what reduces the risk of cancer, because the less they replicate, the fewer mutations can be caused.
Moreover, many animals have developted many ways of protecting themselves from mutations, such as having several copies of an important gene.
A list of some animals with long lifespan:
- Bowhead whale: potentially 200+ years old.
- Rougheye rockfish: 200+ years old.
- Freshwater pearl mussel: 250+ years old.
- Greenland shark: 272+ years old.
- Tubeworm: 300+ years old.
- Glass sponge: 10,000+ years old.
- Hydra: also potentially immortal.
Which of the following is a way that
bacteria play an integral role in
ecosystems?
O
the make up most of the food that we eat
they act as decomposers to break down
organic matter
they spread disease across ecosystems
Name ONE Australian plant and ONE viral or fungal pathogen that invades this plant.
Describe how the plant named responds to the pathogen
Answer:
Common Name: Potato Plant; Scientific Name: Ipomoea costata
Fungal Pathogen: Phytophthora Infestans
Explanation:
Late Blight (or Potato Blight).
The specific response of potato plant is that their pattern recognition receptors can recognize beta-glucans that is present on the phytophthora infestans’ cell wall.
Which process (es ) contribute to the proton gradient that powers ATP synthase in chloroplasts ? Choose ALL correct answers A proton pump uses light energy to move protons into the thylakoid space Protons are produced when water is split Protons are pumped into the thylakoid space using the energy from an electron transport chain Protons are produced when NADP + is reduced
Proton gradients are essential for chloroplast function. The light-induced gradient across thylakoid membranes is required for ATP synthesis.
Does ATP synthase pump protons?
The ATP synthase enzyme is reversible and can also function as a proton pump by coupling ATP hydrolysis to proton translocation. Each respiratory enzyme employs a unique strategy for proton pumping.
The light energy is used to separate an electron from PSII, causing it to cascade through the electron transport chain. Along with the electron transfer, a proton gradient across the thylakoid membrane is established, with a higher concentration of protons and a lower pH in the thylakoid lumen.
Therefore, the proton pump uses light energy to move protons into the thylakoid space.
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Question: Are there any cells we can see with our unaided eyes? Write a Claim: Evidence:Reasoning:
There are many cells we can see with our unaided eyes in the ovum.
The human eye can see objects as small as 100 microns. Objects below 100 microns cannot be seen with the eye. Cells in our bodies are 10 microns in size and cannot be seen with the eye. Eggs, like single cells, can be seen without a microscope. In all mammals, the egg is the only cell visible to the human eye.
Cells are so small that they are usually invisible to the eye. As we age, the vitreous jelly-like substance in the eye liquefies and shrinks. When this happens, the microscopic collagen fibers within the vitreous tend to clump together. This scattered debris cast small shadows on the retina. The smallest object visible to the human eye is approximately 0.1 mm in length.
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What’s the correct answer answer asap for brainlist
Answer:
c
Explanation:
Answer:
c
Explanation:
none of those other things affect the air
12. Use a model to explain how matter changes during
biochemical reactions like photosynthesis and respiratio
In the process of photosynthesis, oxygen and glucose are produced from water and carbon dioxide. As a consequence of consuming glucose, the plant creates oxygen. Oxygen and glucose are transformed into water and carbon dioxide during cellular respiration. By-products of the process include carbon dioxide, water, and ATP, which is turned into energy.
What are Cellular Respiration and Photosynthesis?Commonly used notation for photosynthesis is: 6CO2 + 6H2O C6H12O6 + 6O2. This means that the products, a sugar molecule and six oxygen molecules, are produced when light energy, which is harvested as chemical energy during photosynthesis, is converted from the reactants, six carbon dioxide molecules and six water molecules, into a sugar molecule and six oxygen molecules. The byproduct is the emission of oxygen. In the process of breaking down glucose during cellular respiration, oxygen is consumed, which also produces heat and chemical energy.To learn more about Photosynthesis and Cellular Respiration refer to:
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What is the correct order for the levels of organization in living systems from the simplest to the most complex? (Note that not all levels of organization are included.) A elements → molecules → cells → tissues → organs B molecules → tissues → cells → organs → organisms C molecules → elements → tissues → organs → organisms D cells → organs → tissues → organisms → molecules
The major levels of organization of body, from the simplest to the most complex are atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.
Many individual organisms can be organized into the following levels are cells, tissues, organs, organs systems, and organisms. There are also levels of organization above the individual organism population, community, ecosystem, biome and biosphere.
Understanding the classification of these levels, provides context to the complexity of the human organism. The simplest level of organization is the chemical level of organization. At this level, simple atoms combine to form relatively simple molecules.
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is RNA that copies the coded message from the DNA inthe nucleus and carries the message into the cytoplam
The messenger RNA (mRNA) is the one responsible for copying the coded message from the DNA present in the nucleus and move it to the cyto
I added a picture of my question :) also thank you so much for being able to help me I really appreciate it.
Molecules (DNA) < Organelles (Mitochondria) < Cells (nerve cell) < Tissues (nervous tissue) < Organs (Brain) < Organ systems (Nervous system)
Which element can form multiple strong bonds with other atoms and makes
up the backbone of most biomolecules?
A. Carbon
B. Oxygen
C. Nitrogen
D. Hydrogen
Answer:
A. Carbon
Explanation:
Because all macromolecules consist of carbon. For example CHO for carbon, hydrogen, and oxygen. CHONP for the macromolecule Nucleic Acids which is also considered DNA consists of carbon. hydrogen. oxygen, nitrogen, and prosperous.
I hope this helped!!
Plant cells, unlike human cells, have rigid "cell walls" that contain the rest of the cell components. What are cell walls analogous to in the human body?
membranes
cytoplasm
blastiopores
mitochondria
What is the correct steps involved in the process of making a protein?
The steps for protein synthesis are:
-Unziping
-Transcription
-Translation
-Elogation
-Termination
1) Unziping: DNA double strand unwinds to expose a sequence of nitrogenous bases (4 the base pairs along a length of DNA separate, exposing binding sites of the bases);
2) Transcription: A copy of the DNA strand is made creating a RNA strand (1 RNA bases bind to DNA bases);
3) The exit of the mRNA made up in the second step to the cytoplasm (5 An RNA copy of the gene leaves the nucleus);
4) Translation: (2 amino acids are brought to the RNA, the mRNA and the tRNA meet to translate the nitrogeneous bases in amino acids);
5) Elogation and Termination: (3 The amino acid string folds and form a protein) the protein information from the mRNA, translated with the help of the tRNA is used for the protein synthesis in the cells cytoplasm.
Therefore, the final order for the question is: 4-1-5-2-3
