The statements which are consistent with structure and function of intermediate filaments are about number of strands, mechanical strength and cell junctions, which suggests that option A, B, D are the right answer.
Each filament is made of eight strands which are made from staggered tetramers linked end to end. The intermediate filaments protect cells from mechanical stress because of their high tensile strength and resist stretching. Desmosomes are intercellular junctions which enable cell to cell adhesion and anchor the intermediate filament network to the plasma membrane. Intermediate filaments are found in the nuclear lamina inside the body. Intermediate filaments are very stable structures which form the true skeleton of the cell. It also provides elasticity to the sarcomere.
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To refer to complete question, see below:
Which of the following statements are consistent with the structure and function of intermediate filaments? choose one or more
A.) each filament is made of eight strands, and each strand is made from staggered tetramers linked end to end
B.) intermediate filaments protect cells from mechanical stress because they have high tensile strength and resist stretching
C.) intermediate filaments are constructed of identical subunits found in all eukaryotic cells
D.) intermediate filaments can connect cells at cell-cell junctions called desmosomes
polyploidy the table shows three related species of potato, and the number of chromosomes each species carries in its somatic cells. s. avilesii is diploid. s. tuberosum is the widely cultivated species. potatoes propagate by asexual reproduction and do not depend only on gametes for reproduction. species solanum avilesii solanum microdontum solanum tuberosum number of chromosomes in somatic cells 24 36 48 classify each statement about these potato species as true or false.
Classify true or false of each statement on potato species
TRUE:
The basic chromosome number (x) for this species is 12Solanum microdontum is triploid with 3x chromosomesSolanum tuberosum is a tetraploid with 4x chromosomesSolanum tuberosum is likely a larger and more hardy plant than S. avilesiiSolanum microdontum may arise from a cross between S. avilessi and S. tuberosumFALSE:
The number of casic chromosomes (x) for this species is 6The gametes produced by Solanum microdontum contain 18 chromosomesSolanum microdontum can only arise from a cross between Solanum avilesii and Solanum tuberosumSolanum microdontum is aneuploidSomatic cells are normal body cells other than reproductive cells and take part in the formation of body structures and hence require mitotic cell division which increases the number of diploid cells. Somatic cells are diploid cells, for example, in S. avilesii they have two series of 12 chromosomes, for a total of 24 chromosomes, in each.
Gamete cells are sex cells consisting of ovum cells (egg cells) in females and spermatozoa cells in males. Gamete cells are cells that function for fertilization or fusion. Gamete cells have a haploid number or half of the chromosomes of the body cells. For example, in Solanum microdontum they have they have 24 chromosomes in gamete cells because the somatic cells are 48 chromosomes.
For complete questions, see the picture.
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Which scenarios describe a keystone species?
A. Removal of a species of herbivore results in a slight decline in the biomass of the other species in that community.
B. Humans hunt a rare species of predator to extinction. Within several years, the diversity of species living within that ecosystem collapses and only a handful of species remain.
C. On one side of a river, a species of herbivore is found in small numbers. On the other side, it is absent. The side it is found on has 5 times the species diversity compared to the other side.
D. A tree is found to be the most abundant species in a community. Its removal substantially reduces the biomass but not the number of species in the community.
The scenarios that describe a keystone species are Option B and C.
B. Humans hunt a rare species of predator to extinction. Within several years, the diversity of species living within that ecosystem collapses and only a handful of species remain.C. On one side of a river, a species of herbivore is found in small numbers.What is the keystone species?A species that plays a vital role in defining an ecosystem is known as a keystone species. By controlling the number of mussels and barnacles
Huge ecosystems depend on keystone species like large mammalian carnivores. They eat a wide range of animals and aid in keeping the ecosystem in balance by doing so. Lions, tigers, and jaguars are a few examples of huge animal predators.
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An analogy is a comparison between two things which are similar in some respects, but otherwise different. Use the examples below in order to create a one-sentence analogy that shows the similarity between each cell part and any object that has a similar function in a different system: cell wall, cell membrane (plasma membrane, cytoplasm, nucleus, nucleoid region, nuclear envelope, nucleolus, chromatin, ribosomes, rough endoplasmic reticulum, smooth endoplasmic reticulum, microtubules, microfilaments, vacuoles, mitochondria, Golgi apparatus, chloroplasts, lysosomes, cilia, and flagella.
The analogy of the cellular structures is as follows:
cell wall is like the skin in humanscell membrane is like the skin in humansplasma membrane is like the skincytoplasm is like the circulatory systemnucleus is like the brainnucleoid region is like the nucleus in eukaryotesnuclear envelope is like the skinnucleolus is like the thalamuschromatin is like the neuronsribosomes are like the digestive systemrough endoplasmic reticulum is like the circulatory systemsmooth endoplasmic reticulum is like the circulatory systemmicrotubules are like the skeletal systemmicrofilaments are like the skeletal systemvacuoles are like the stomachmitochondria are like the digestive systemGolgi apparatus is like the pancreas and liverchloroplasts are like the mitochondrialysosomes are like the digestive systemcilia are like the limbsflagella is like the limbsWhat is an analogy?According to Webster's English dictionary, “An analogy is a comparison between two things which are similar in some respects, but otherwise different. An explaining of something by comparing it point by point with something else.”
The analogy between the cell parts is used to compare cellular structures or organelles and other structures in living organisms.
The cell parts that are compared include:
cell wall,cell membraneplasma membranecytoplasm,nucleus,nucleoid region,nuclear envelope,nucleolus,chromatin,ribosomes,rough endoplasmic reticulum,smooth endoplasmic reticulum,microtubules,microfilaments,vacuoles,mitochondria,Golgi apparatus,chloroplasts,lysosomes,cilia, andflagella.Learn more about the analogy of cellular structures at: https://brainly.com/question/17345108
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Which of the following terms describes the functional classification of the illustrated joint with regard to its range of movement?
synovial
synarthrotic
diarthrotic
amphiarthrotic
The following term which describes the functional classification of the illustrated joint with regard to its range of movement is diarthrotic and is therefore denoted as option C.
What is Diarthrotic?This is referred to as a freely moving joint and it is characterized by its mobility and a joint cavity. Examples of this type of joint include gliding and pivot joint due to their similar features.
This type of joint usually has a synovial membrane within which is encased in the joint as denoted in the diagram given below which is therefore the reason why it was chosen as the correct answer.
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Which of the following statements are true regarding epigenetics? Choose all that apply.
Answer:
you forgot the picture !
Explanation:
Why do muscle cells and nerve cells have more mitochondria?; Why are there many more mitochondria in muscle cells than there are in skin cells?; Why do some cells have more mitochondria than others?; Does a nerve cell contain more mitochondria than a muscle cell?
Muscle cells and nerve cells have more mitochondria because they need more energy to function correctly. Mitochondria are concentrated more in cells that consume high energy which include nerve and muscle cells.
Muscle cells have higher energy demands compared to skin cells and therefore have more mitochondria concentration compared to skin cells.
The reason why some cells have more mitochondria than others is that some cells have more energy demands compared to others making mitochondria more concentrated in cells with high energy needs and less in low energy demanding cells.
Muscles need more energy compared to nerve cells and therefore muscles have more mitochondria compared to nerve cells.
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What type of reproductive isolation is
occurring between the two owl species?
A. temporal isolation this is the answer
B. gametic isolation
C. photosynthetic isolation
Answer: The answer is A
Explanation: Temporal means "isolated in time" and occurs whenever two species reproduce at different times during the year yet live in the same location. This can lead to unsuccessful mating.
Temporal isolation also occurs amongst carefully associated animal species.
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Which surface is highlighted?
costal groove
articular tubercle
neck
head
The surface highlighted in the image is articular tubercle, which suggests that option B is the right answer.
The articular tubercle refers to the bony eminence situated on the temporal bone in the skull. It is also known as eminentia articularis. The mandible articulates with the maxilla at the temporomandibular joint. The tubercle which is present immediately after the neck is a prominent on the external surface of the ribs which contains a medial facet that articulates with the transverse process of the numerically corresponding vertebra column. Articular tubercle is a protrusion of the temporal bone that creates the frontal root of the zygomatic process.
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which descibes the motion of the plates
Answer: The heat from radioactive processes within the planet's interior causes the plates to move, sometimes toward and sometimes away from each other. This movement is called plate motion, or tectonic shift.
Answer:
a rotation about a virtual axis that passes through the center of the sphere (Euler's theorem)
Explanation:
membrane lipids are capable of many different types of movement. which of these does not occur spontaneously in biological membranes? group of answer choices moving between lipid layers lateral movement rotation around the long axis of a fatty acid flexing of hydrocarbon chains
Moving between lipid layers does not occur spontaneously in biological membranes.
What are Cell membranes?
Cell membranes are thin layers of proteins and lipids that surround and protect cells. They act as a barrier, controlling what enters and leaves the cell. Cell membranes also contain receptors that allow cells to interact with their environment.
In biological membranes, lipids are arranged in a double layer or “bilayer”, which is held together by hydrophobic interactions. This means that water-soluble molecules and ions cannot pass through the membrane, as they are repelled by the hydrophobic environment of the lipids. Lipids, however, can move between layers, but this does not occur spontaneously; rather, it is regulated by proteins, which act as channels that allow the passage of specific molecules. Therefore, movement between lipid layers does not occur spontaneously in biological membranes, but is instead regulated by proteins.
Therefore the correct option is Option A.
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Which of the following is not a form of derivative classification?
It is not derivative classification to copy or duplicate already-classified information, such as by photocopying a document.
What in the derivative categorization process is not a step?Every stage in derivative classification is listed here, WITH THE EXCEPTION of the initial judgement that information has to be protected from unauthorized disclosure in the interest of national security.
What categories do derivatives fall under?
The term "derivative classification" refers to the process of integrating, paraphrasing, restating, or creating in new form already classified information and classifying the newly created material in accordance with the classification markings that apply to the source information.
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Which of the following can cause extensive damage well after the ground shaking associated with an earthquake stops?
a. Tsunami
b. Fire
c. Flooding from subsidence or failure of dams
All of these are extensive damage well after the ground shaking associated with an earthquake stops.
Water waves known as tsunamis are brought on by the abrupt vertical shift of a sizable portion of the ocean floor following an underwater earthquake. Tidal waves are frequently used to refer to tsunamis, but this word is inaccurate. Tsunamis are not brought on by the Moon and Sun's tidal action, in contrast to normal ocean tides.In the exothermic chemical process of combustion, fire is the rapid oxidation of a substance (the fuel), releasing heat, light, and different reaction products. Flames are created at a specific stage of the combustion reaction known as the ignition point. The part of the fire that can be seen is the flame.Failure of a landslide dam can cause devastating flooding downstream. However, there are few laboratories experimental studies and little field observation of such flooding will reduce earthquake.To know more about earthquake check the below link:
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restriction enzymes question 13 options: edit proteins. cut dna at specific sites. stop transcription. bind together strands of dna.
Restrictions enzymes are found in bacteria (and other prokaryotes). They locate specific DNA sequences known as restriction sites and cling to them.
Each restriction enzyme only recognizes one or a small number of restriction sites. Once it finds its target sequence, a restriction enzyme will make a double-stranded cut in the DNA molecule. The cut often happens at or close to the limitation point in a tidy, consistent pattern. [Why do microorganisms have restriction enzymesAs an example of how a restriction enzyme recognizes and cuts at a DNA sequence, let's use EcoRI, a standard restriction enzyme used in labs. EcoRI makes the following cuts here: If an overhang is identical to one on another piece of DNA, as in the case when EcoRI
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Native autotroph species (at least three) For grassland
The grasslands are home to a variety of natural flora, including galleta, blue grama, buffalo grass, and purple needle grass.
Explain about the grassland?Grasslands are found in areas with regular rainfall that is insufficient to sustain the growth of a forest but not insufficient enough to cause a desert to form. In reality, meadows are frequently found between deserts and woods. Grasslands make up between 20 and 40% of the world's land area, depending on how they are characterised.
Grassland is a region where grasses make up virtually all of the vegetation. Grasslands are found in conditions that favour the establishment of this plant cover but not the growth of taller plants, especially trees and shrubs. Natural grasslands, semi-natural grasslands, and farmed grasslands are among the several kinds of grasslands.
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Match the type of species interaction to the correct description. A Lichens and mosses live on the branches of a. competition trees and are benefited by being up and out of b. predation the shade where they carry out more c. mutualism photosynthesis. The tree is unharmed by their d. commensalism presence. 4 A wolf and a fox live in the same community. e. parasitism
The answer to the given question about type of species interaction are:
1) Lichens and mosses - d) Commensalism
2) Wolf and Fox - a) Competition
3) Plants and Bacteria - c) Mutualism
4) Lynx and Snowshoe - b) Predation
5) Species and host - e) Parasitism
In a parasitic relationship, one creature gains an advantage at the expense of the other. Ectoparasites, which live on the host's surface, and endoparasites, which live inside the host, are the two forms of parasites that harm living things (living in the body of host). Mutualism refers to ecological interactions between two or more species in which each species gains something from the connection. Ecological interactions frequently take the form of mutualism. Several notable examples are corals with zooxanthellae, blooming plants being pollinated by animals, vascular plants being spread by animals, and most vascular plants interacting mutualistically with mycorrhizae. The opposite of mutualism is interspecific competition, which results in reduced fitness for each species, exploitation, or parasitism, which favors one species at the expense of another.
Question
Match the type of species interaction to the correct description.
Lichens and mosses live on the branches of trees and are benefited by being up and out of the shade where they carry out more photosynthesis. The tree is unharmed by their presence.A wolf and a fox live in the same community. The primary prey for both of them are rabbits.Some plants live in association with bacteria that can fix nitrogen. The nitrogen from the bacteria is shared with the plant and the bacteria receive carbohydrates from the plant.A lynx searches for, and kills a snowshoe hare.A species that withdraws nutrients from another species (its host), usually without killing it.a. competition
b. predation
c. mutualism
d. commensalism
e. parasitism
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Imagine two cities in North America. How does the climate of a city at 45°N near the Pacific Ocean differ from one at the same latitude near the Atlantic Coast?
The climatic differences across places do not necessarily follow from their shared latitude. It all depends on the different air and ocean currents.
What is Climate ?
The average weather throughout a region's long term, usually 30 years, is called the climate. More precisely, it is the mean and variability of meteorological variables over a period of time that can range from a few months to many millions of years. Temperature, humidity, air pressure, wind speed, and precipitation are a few of the meteorological parameters that are frequently observed. Climate, in a broader sense, refers to the interactions between the atmosphere, hydrosphere, cryosphere, lithosphere, and biosphere as well as their state as parts of the climate system. Latitude/longitude, topography, altitude, land use, and the presence of surrounding water bodies and their currents all have an impact on a place's climate.
The average and typical factors, primarily temperature and precipitation, that make up a climate can be used to categorize it.
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A variance of 4 for group A as compared to a variance of 0.25 for group B indicates
Please choose the correct answer from the following choices, and then select the submit answer button.
a greater variability of phenotypes in group B.
a greater number of individuals in each phenotype class in group A.
a greater variability of phenotypes in group A.
nothing.
a greater number of individuals in each phenotype class in group B.
a greater variability of phenotypes in group A.
Variance 4 for group A compared to variance 0.25 for group B indicates greater phenotypic variability in group A
Quantitative geneticists can estimate the proportion of total variance based on total genetic variance and environmental genetic variance. When a geneticist seeks to improve a particular quantitative trait (eg, desired yield or weight gain), estimates of the proportion of the variance to the total variance will guide research.
When most of the variance is genetic, an advantage can be gained by selecting individuals with the desired metric. Conversely, if the genetic variance is small, meaning that the environmental variance is large, greater success will be achieved by optimizing the environmental conditions in which the individual grows.
In the question, the variation for group A is 4 while the variation for group B is 0.25 → 4 > 0.24 = A > B
Thus, the correct statement is a greater variability of phenotypes in group A.
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Gastrulation begins when a groove with raised edges called the _________________ appears on the dorsal surface of the embryonic disc and establishes the longitudinal axis of the embryo
The onset of gastrulation is signaled by the formation of the primordial streak, a groove in the caudal end of the epiblast layer.
What happens during the first opening of gastrulation?In the blastopore The embryo's first opening, or blastopore, is where invagination occurs during gastrulation. Eventually, the mouth or the anus will develop from the blastopore. Either one or the other end of the gut-tube. The archenteron, a rudimentary gut, develops at this period.
In what part of the blastula does gastrulation begin?The embryo's posterior side is where the extraembryonic tissue and epiblast converge, and this is where the primitive streak develops at the start of gastrulation. This is also where ingression occurs.
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b. What can developed and developing countries learn from each other?
which is a primary component of a plant cell wall?; which statements correctly define the role of ribosomes in a cell?; what is the relationship between rough endoplasmic reticulum (er) and lysosomes; where are proteins synthesized?; which is the primary function of a vacuole?; how is it possible that plants can express firefly genes?; which structures do a rabbit cell and a bacterial cell have in common?; what role do ribosomes play in the central dogma of molecular biology?
Where the interpretation happens, interpretation takes put interior structures called ribosomes, which are made of RNA and protein. Ribosomes organize interpretation and catalyze the response that joins amino acids to form a protein chain.
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complement _____attracts phagocytes. causes bacteria cells to burst. is a series of proteins. is described by all of these characteristics.
complement system attracts phagocytes. causes bacteria cells to burst. is a series of proteins. is described by all of these characteristics.
A wide variety of different plasma proteins that make up the complement system interact with one another to opsonize pathogens and trigger a number of inflammatory reactions that aid in the fight against infection. Many complement proteins are proteases, and they are themselves triggered by proteolytic cleavage.
It is innate type of immune response as it is non-specific.
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What two levels of organization can be found within an organelle?
stimulus to the muscle spindle elicits the reflex. stimulus to the muscle spindle elicits the reflex. ciliospinal plantar stretch consensual
The reflex is triggered by a consensual stretch stimulation to the muscle spindle.
What is stimulus Short answer?Anything that can cause a shift in one's attitude or physical state is a stimulus. Stimuli is the plural of stimulus. Outside or internal stimuli can be used. The way a medicine affects your body is an illustration of an external stimulus. Your vital signs altering as a result of a change in your body is an example of an internal stimulus.
What causes stimulus?Its environment changes in a way that can be noticed. Receptors: Receptors are devices that transform ambient stimuli into electrical nerve signals. Neurons: Through neurons, nerve signals are sent from the peripheral nervous system to the brain. Effectors: In response to the stimuli, effectors create a reaction.
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What is the purpose of a
functional group?
A. to make molecules non-polar
B. to help molecules separate from
water
C. to build inorganic molecules
D. to assist molecules in chemical
reactions this is the answer
Answer:
D
Explanation:
functional groups are atoms or group of atoms that are made responsible for the physical and chemical properties in an organic compound
Answer:
D
Explanation:
to assist molecules in chemical reaction this is the answer
What are the reactants involved in cellular respiration?; Is sugar a reactant or product in cellular respiration?; Where is sugar used in cellular respiration?; Is glucose the only sugar used in cellular respiration?
a). Oxygen and glucose are the two reactants necessary for cellular respiration. b). When cells respire, glucose (sugar) and other reactants are used. c). It is employed in the initial phase of cellular respiration. d). None of the others are used.
a). In the process of cellular respiration, both oxygen and glucose are reactants. Carbon dioxide and water are waste products of cellular respiration, with ATP serving as its primary product.
b). The process that transforms chemical energy is known as cellular respiration, and the reactants and products involved include oxygen, glucose (sugar), carbon dioxide, and water. The reactants, glucose (sugar) and oxygen, mix during cellular respiration to create new products, carbon dioxide molecules and water molecules. In order to provide energy for other cellular functions, adenosine triphosphate (ATP) is created.
c). As the primary substrate processed during glycolysis, glucose is utilized at the very first stage of cellular respiration. Pyruvate is generated once glucose is broken down into it, and then the pyruvate molecules are changed into acetyl CoA.
d). Glucose is, in fact, the main chemical used in cellular respiration. However, additional molecules can also be used in cellular respiration to generate energy, including: Lactic acid, which the liver can convert into glucose and then use in the process known as glycolysis to generate energy.
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Correct Question:
a. What are the reactants involved in cellular respiration?;
b. Is sugar a reactant or product in cellular respiration?;
c. Where is sugar used in cellular respiration?;
d. Is glucose the only sugar used in cellular respiration?
During a physical assessment, using the handle of the reflex hammer, you gently stroke the inner left thigh of the patient, which causes the ipsilateral testicle to rise. What superficial reflex is demonstrated?A. abdominal reflexB. babinski reflexC. brachioradialis reflexD. cremasteric reflex
Answer: D. cremasteric reflex
Explanation: My friend told me
FILL IN THE BLANK. ___ a type of process equipment in which heat is liberated and transferred directly to a fluid mass for the purpose of increasing the temperature of a process fluid.
Furnace a substance's ability to absorb or release energy when going through a phase change without experiencing a temperature change.
What is the process when heat is conveyed and transferred by a moving fluid called?Heat is transferred by a fluid, such as water or air, by convection. As the fluid (liquid or gas) flows from one place to another, it also transfers heat. A current is a term used to describe the movement of heated water or air.
What means of heat exchange does the body employ to receive or release heat energy?The body can also increase or decrease its temperature using heat exchange systems. Through physical touch, conduction transmits heat from one thing to another. Heat is transferred to water or air through convection. Infrared radiation is a means of transferring heat.
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Which of the following does not describe a function of aggressive animal behavior?
A) Aggressive behavior is displayed to establish territorial boundaries.
B) Aggressive behavior leads to fights that allow strong animals to kill off weaker members of the species.
C) Aggressive behavior is displayed to determine who is allowed to mate.
D) Aggressive behavior is displayed to establish hierarchy without violence.
*D is not correct answer
Answer:
B.Aggressive behavior leads to fights that allow stronger animals to kill off weaker members of the species.
Explanation:
Take a wolf pack as an example; to figure out who the alpha is after the old one dies the beta will temporally take post as alpha. If another wolf of the pack can beat the alpha(not to death just til surrender) then the beta will stand down as alpha and the winner will be alpha. One wolf pack will also attack other wolf packs if that pack feels as though their territory line has been crossed or if the trespassing pack attacks a pup. In some but very few cases an alpha will lose there place in the pack if another member of the pack does the "alpha's job" better without violence; most of the time when that happens the two wolves will still fight if the og alpha feels its necessary.
Question ( point) See page 927 During phagocytosis, the cytoplasmic membrane of the phagocyte flows around, and then engulfs, the bacterium, producing an intracellular phagosome. Subsequent phagosome-lysosome fusion results in both oxygen-independent and oxygen-dependent killing pathways. 1st attempt See Hint Sort the descriptions as they apply to either oxygen-independent or axygen-dependent killing pathways. Descriptions (8 items) (Drag and drop into the appropriate area below) No more items Killing Mechanisms Oxygen-Independent Oxygen-Dependent Sequestering of iron away from the microbe Involve hydrogen peroxide Activated through Toll-like Incude receptors Involve free radicals Involve superoxide ion Involve NADPH oxidase Include defensins
For this query, the following options are available:
They are "slippery" to phagocytes due to their capsules, which also inhibit the merger of the lysosome and phagosome.
c) They destroy the phagocyte by causing the lysosomes to release their contents into it.
Their capsules make them "slippery" to phagocytes, which is the right response. Because of the polysaccharide nature, the components of the S. pneumoniae bacterial surface are highly slippery and resist phagocyte engulfment. Other than this, the S. pneumoniae capsule does have an anti-phagocytic effect.Injury in complex animals leads to a process known as margination. Blood capillaries enlarge and white blood cells (phagocytes and leukocytes) cling to the endothelial cells of blood vessels during the early stages of inflammation at the site of the injury.
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What is cytokinesis and when does it occur during the cell cycle?; Where does cytokinesis occur in the cell cycle?; What is the process of cytokinesis ?; What is cytokinesis the stage of the cell cycle?
The physical process of cell division known as cytokinesis splits the parent cell's cytoplasm into two daughter cells. Cytokinesis begins during the anaphase phase of nuclear division and lasts until telophase.
Anaphase marks the start of cytokinesis, which concludes in telophase and is finished when the subsequent interphase starts. The abrupt emergence of a pucker, also known as a cleavage furrow, on the cell surface is the first audible sign of cytokinesis in an animal cell.
The physical process of cell division known as cytokinesis separates a parental cell's cytoplasm into two daughter cells. In animal cells, the two forms of nuclear division, meiosis and mitosis, also take place at the same time.
A cell must correctly separate its cytoplasm and chromosomes throughout the cell cycle's cytokinesis stage in order to produce two daughter cells.
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