The effect of MAP2 on microtubules is similar to the effect of CapZ on microfilaments how?     both stabilize the positive end of the filament     both bundle the filaments in parallel bundles     both increase the instability of the negative end of the filament     both nucleate the formation of the filaments

Q: What is necessary to make a cleavage furrow during cytokinesis?   A. Kinesin "walking" along…

A: * cytokinesis part of cell division in which  cytoplasm of one cell divides into two daughter cells.…

Q: Which of the following properties are shared by desmosomes and hemidesmosomes? Select all that…

A: Option a  nad c they both are protein structure found in eukaryotic cells and they bind to…

Q: Which of the following is true about plant cellulose synthesis? a.cellulose fibers are arranged in…

A: The plant cell wall is made up of matrix and microfibrils. The matrix is made up of water, pectin,…

Q: Dynamic instability is the phenomenon by which microtubules undergo rapid growth and disassembly.…

A: Dynamic instability is the phenomenon by which microtubules undergo rapid growth and disassembly.…

Q: Cleavage of a phosphate bond is needed for de-polymerization of which mature polymer? Neither…

A: The eukaryotic cytoskeleton is composed of microfilaments, microtubules, and intermediate filaments.…

Q: ntibody that binds to myosin prevents the movement of myosin molecules along actin filaments.…

A: The basic structures that cause muscle contraction and relaxation are myosin and acting filaments.…

Q: Microtubules in a cell exhibit dyanimc instability at which end?     positive end     negative…

A: As per our guidelines, we are supposed to answer only one question. Kindly repost other question as…

Q: Direct communication between animal cells that a virus infection like Covid 19  has taken place can…

A: Tight junctions, desmosomes, and gap junctions bind animal cells and allow them to communicate…

Q: Put the following in order of size from smallest to largest microtubules sarcomere intermediate…

A: All three types of fibres can be found in the epithelial (skin) cells of the intestine. The cell…

Q: Structures made primarily of microtubules, they organize the mitotic spindle in animal cells and are…

A: The cell is the basic structural and functional unit of life of all living organisms capable of…

Q: Microtubules (a) have constant diameters, but vary in length (b) vary in diameter, but are constant…

A: Microtubules are one of the most important cytoskeleton structures that are involved in different…

Q: How many of the following are present in a long and growing microtubule (with no motor proteins)? I.…

A: GTP is defined as an energy-rich kind of nucleotide that is analogous to a molecule of ATP that is…

Q: capZ encourages the elongation of actin filaments (true or false) 2)microtubules are tissue…

A: capZ or capping protein involved in assembly and disassembly of actin filaments. capZ cap the…

Q: Cell motility involves the coordination of many events in the cell. In cells lacking flagella/cilia,…

A: The cytoskeleton is a complex network of protein filaments located in the cytoplasm of the cells. It…

Q: How is ATP used in the regulation of intermediate filaments? Addition of 8 tetramers to a growing…

A: Intermediate filaments assemble from elongated fibrous proteins with a conserved tripartite…

Q: Intricate network of protein filaments that extend through cytoplas Only exists in the eukaryotic…

A: The cytoskeleton of a cell is made up of microtubules, actin filaments, and intermediate filaments.

Q: A molecule of the motor protein Winnebago, supplied with ATP, is moving along a microtubule in the…

A: The correct option is d i.e, Winnebago will move backwards (towards point A instead of point B).…

Q: Statements: I. Thymosin acts to prevent rate of actin polymerization. II. Loss of tight junction…

A: Actin is a multifunctional globular protein that forms microfilaments in the cytoskeleton and thin…

Q: Part of cell division is that chromosomes are moved the center of the cell and then back to the…

A: Part of cell division is that chromosomes are moved the center of the cell and then back to the…

Q: Match each of the following to its role in the cell.

A: Theree types of cytoskeleton present in cell ,which serve various functions like  cellular…

Q: 1.Cytochalasin is a drug that caps actin filament plus ends, thus preventing actin polymerization.…

A: Actin is a protein that is one of three components of cellular filaments: intermediate filaments,…

Q: The cleavage furrow of animal cells is formed by:   Select one: a. The action of actin…

A: A cell is defined as the smallest unit of a living organism which is the basic structural,…

Q: Which of the following is FALSE? Muscle cells contain myosin II, which is responsible for…

A: option c. Incorrect Myosin 1 is not only the single head domain protein but Myosin9 also a single…

Q: Which of the following are characteristics of both actin filaments and microtubules? Select all that…

A: Actin filaments and tubulins are the subunits of microfilaments and microtubules respectively. They…

Q: 11. Following figure shows the leading edge of a lamellipodium. Which of the following statements is…

A: Lamellipodium It is considered to be the distinct region of the cell . It mainly enables cell…

Q: If a cell increases the activity of its actin severing proteins, will it lead in the short term to…

A: Actin severing proteins are also known as actin depolymerizing proteins. They function in…

Q: Intermediate filaments have identical ends and lack polarity, whereas microtubules have two distinct…

A: Microfilaments, Microtubules and Intermediate filaments are eukaryotic cytoskeletons. Microfilaments…

Q: Which of the following is/are required in order for an endosome to be transported from the plasma…

A: GTP

Q: Which of the following are part of adherens junctions? a. Anchor proteins b. Actin filament c.…

A: In animals, cell junctions (also known as intercellular bridges) are multiprotein complexes that…

Q: Dynein uses ATP to    A. propel axoneme arms together   B. undergoes  confo

A: Protein is known to be a very complex substance. It consists of amino acid residues, which are…

Q: A patient has ingested a chemical known to prevent alpha-tubulin from hydrolyzing GTP to GDP. Which…

A: As we know all living entities have basic structural and functional units which are cells.  There…

Q: e cell. The hydrolysis of ATP is involved with this movement. Identify the most likely motor protein…

A: Option a

Q: Which of the following can be used to describe both desmosomes and adherens junctions? Select all…

A: The selective cell to cell attachment is mediated by different types of addition molecules that also…

Q: microtubules 25-nm diameter actin filaments 7-nm diameter intermediate filaments 10-nm diameter

A: Step 1 Eukaryotic cells possess a submicroscopic complex supportive framework of protein fibers and…

Q: Microtubules within a cell appear to be arranged in specific arrays. What cellular structure is…

A: Introduction :- The cytoskeleton is made up primarily of microtubules. They are present in all…

Q: If GTP hydrolysis occurs on a tubulin molecule at the plus end of a microtubule protofilament before…

A: Microtubule: - Present in all eukaryotes - Made up of two different types of protein - α and β…

Q: Which of the following describes an F-actin microfilament?     A flexible, helical filament…

A: Option A  flexible, helical filament composed of two strands assembled from G-actin

Q: Microtubules and microfilaments are similar in that: Group of answer choices A. both use GTP as…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Which of the following statements is true regarding pili and flagella assembly? O Pili and flagella…

A: Pili are the short and straight hairlike structures of prokaryotic cells present on their outer…

Q: O microtubules would grow longer microtubules would shrink O microtubules would contain GTP caps

A: The component of cytoskeleton- microtubules are the rigid hollow rods of approximately 25 nm in…

Q: Which of the following describes a mechanism by which microtubules are known to be stabilized?…

A: binding induces a closed-to-open and loop-to-helix conformational change of β M-loop, which may…

Q: Which of the following is NOT a way intermediate filaments are unique compared to the other…

A: Microtubules, actin filaments, and intermediate filaments make up a cell's cytoskeleton. These…

Q: in developing three drugs that all affect the cell skeleton. One of your medicines affects…

A: The cytoskeleton is a network of filaments that are part of the cytoplasm in cells. The cytoskeleton…

Q: Intermediate filaments help protect animal cells from mechanical stress because - Filaments remain…

A: Introduction A protein filament is a long strand of monomers of protein found in hair, muscle, and…

Q: Explain how the following cell transport systems work moving materials around inside the cell and…

A: Transport of materials across the cell membrane within cells depends on the nature of the material…

Q: Actin filaments and microtubules are similar with respect to each of the following EXCEP O inherent…

A: Microtubules, like actin filaments, are dynamic structures: they will grow and shrink quickly by the…

Q: Which of the following is true regarding kinesin 4? O it is located on chromosomes that are not…

A: Kinesin 4 is found in the nucleus during the interphase and is bound to chromosome during mitosis.…

Q: Which of the following statements about pili is NOT true? pili are used during cell division. pili…

A: Pilli is also considered as fimbriae which are defined as hair-like structures and are short which…

Q: IFs, provide very little mechanical strength to cells. How can you rebut this and provide…

A: Introduction : Intermediate filaments constitute the cytoskeleton, which provides mechanical support…

Immunology

Immunology is the division of science involved with the immune reactions occurring in living organisms. The organisms are accustomed to evolving internal defense mechanisms to evade the invasion of microbial pathogens. Diverse cells are connected with stimulating the immune responses, which produce inhospitable conditions to the microbes prompting their lysis and thus inhibits the multiplication of the pathogens. The immune system can distinguish the pathogens through the aid of cellular intercommunication and launch responses to destroy them.