Homework Answers
3rd one is correct answer because intermediate filaments are stable and they do not move by motor proteins as micro tubules or microfilaments do.
Motor proteins help in motility of cytoplasm.
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Question 1 1 pts Which of the following do not associate with motor proteins? O plasma...
Which of the following associate with kinesin and dynein? O Microtubules O Microfilaments Intermediate filaments All...
Which of the following associate with kinesin and dynein? O Microtubules O Microfilaments Intermediate filaments All of the above Two of the above None of the above All movement of organelles along cytoskeletal proteins uses ATP as the energy source. True False
For each of the following, decide whether it applies to actin filaments, intermediate filaments, and/or microtubules....
For each of the following, decide whether it applies to actin filaments, intermediate filaments, and/or microtubules. NOTE: there may be multiple answers for each statement. Found in the nucleus and cytoplasm ANSWER: Involved in the transport of vesicles and organelles ANSWER: Associate with proteins that help adhere cells to the extracellular matrix ANSWER: Their stability is influenced by nucleotide hydrolysis ANSWER: Directly involved in phagocytosis ANSWER: Can associate into bundles with the help of other proteins ANSWER:
The liver is involved in detoxification of many poisons and drugs. Which of the following structures...
The liver is involved in detoxification of many poisons and drugs. Which of the following structures is primarily involved in this process and therefore abundant in liver cells? A) rough ER B) smooth ER C) Golgi apparatus D) nuclear envelope E) transport vesicles Which of the following produces and modifies polysaccharides that will be secreted? A) lysosome B) vacuole C) mitochondrion D) Golgi apparatus E) peroxisome Which organelle often takes up much of the volume of a plant cell? A)...
please write it neatly so I can usneratand. Thank you! For each of the following, decide...
please write it neatly so I can usneratand. Thank you!
For each of the following, decide whether it applies to actin filaments, intermediate filaments, and/or microtubules. NOTE: there may be multiple answers for each statement. A. Found in the nucleus and cytoplasm B. Involved in the transport of vesicles and organelles C. Associate with proteins that help adhere cells to the extracellular matrix D. Their stability is influenced by nucleotide hydrolysis E. Directly involved in phagocytosis F. Can associate into...
Question 78 Which of the following statements about the cytoskeleton is TRUE? All eukaryotic cells have...
Question 78 Which of the following statements about the cytoskeleton is TRUE? All eukaryotic cells have actin, microtubules, and intermediate filaments in their cytoplasm The cytoskeleton provides a rigid and unchangeable structure important for the shape of the cell. The three cytoskeletal filaments perform distinct tasks in the cell and act completely independently of one another Actin filaments and microtubules have an inherent polarity, with a plus end that grows more quickly than the minus end С. D Question 79...
Which of the following statements is false? Q 17-7 Homework Unanswered. Due in a day Which...
Which of the following statements is false?
Q 17-7 Homework Unanswered. Due in a day Which statement is FALSE? A Kinesins would be likely to move cargoes along microtubules toward the periphery of the cell o B A dynein would be the most likely motor protein to deliver a signal from the cell periphery to the nucleus O C Myosin I can control cell shape by pulling the plasma membrane along actin filaments D M yosin II promotes flagella movement...
of the three types of fibers; microfilaments (or and intermediate filaments are fibers with diameters in...
of the three types of fibers; microfilaments (or and intermediate filaments are fibers with diameters in a Microtubules are the filaments) are the middle range. Microtubules are hollow rods about 25 nm in diameter and 200 nm to 25 um in length. Microtubule fibers are constructed of the globular protein A tubulin dimer consists of two slightly different polypeptides: a-tubulin and B-tubulin. Microtubules shape and support the cell and serve as tracks to guide motor proteins carrving organelles to their...
Which of the following is/are required in order for pancreatic acinar vesicles to be transported to...
Which of the following is/are required in order for pancreatic acinar vesicles to be transported to the plasma membrane prior to secretion? a) Actin b) Myosin c) Microtubules d) Dynein e) Microtubules and Dynein
1) What is nucleation? How are microtubules nucleated? How is Actin commonly nucleated? 2) How do...
1) What is nucleation? How are microtubules nucleated? How is Actin commonly nucleated? 2) How do motor proteins work? Why is it important that these proteins have two domains that interact with the cytoskeletal element (“feet”)? 3) Give two examples of Actin binding proteins that would affect actin dynamics. 4) Intermediate filaments are very different from the other two cytoskeletal elements. What are those differences?
1. Directional transport within the endomembrane system (anterograde vc. retrograde transport) is mediated by which of...
1. Directional transport within the endomembrane system (anterograde vc. retrograde transport) is mediated by which of the following. a. Kinesin and dynein motors on microtubules b. Myosin motors actin filaments c. Sliding of microtubules against each other using dynein motors. d. Desmosomal movement along intermediate filaments. 2. Dynamic assembly and disassembly of a cytoplasmic microtubule in a cell occurs primarily at the MT plus end, because the minus end is usually anchored to? a. a GTP-cap b. a centromere c....
Which of the following associate with kinesin and dynein? O Microtubules O Microfilaments Intermediate filaments All of the above Two of the above None of the above All movement of organelles along cytoskeletal proteins uses ATP as the energy source. True False
The liver is involved in detoxification of many poisons and drugs. Which of the following structures is primarily involved in this process and therefore abundant in liver cells? A) rough ER B) smooth ER C) Golgi apparatus D) nuclear envelope E) transport vesicles Which of the following produces and modifies polysaccharides that will be secreted? A) lysosome B) vacuole C) mitochondrion D) Golgi apparatus E) peroxisome Which organelle often takes up much of the volume of a plant cell? A)...
please write it neatly so I can usneratand. Thank you!
For each of the following, decide whether it applies to actin filaments, intermediate filaments, and/or microtubules. NOTE: there may be multiple answers for each statement. A. Found in the nucleus and cytoplasm B. Involved in the transport of vesicles and organelles C. Associate with proteins that help adhere cells to the extracellular matrix D. Their stability is influenced by nucleotide hydrolysis E. Directly involved in phagocytosis F. Can associate into...
Question 78 Which of the following statements about the cytoskeleton is TRUE? All eukaryotic cells have actin, microtubules, and intermediate filaments in their cytoplasm The cytoskeleton provides a rigid and unchangeable structure important for the shape of the cell. The three cytoskeletal filaments perform distinct tasks in the cell and act completely independently of one another Actin filaments and microtubules have an inherent polarity, with a plus end that grows more quickly than the minus end С. D Question 79...
Which of the following statements is false?
Q 17-7 Homework Unanswered. Due in a day Which statement is FALSE? A Kinesins would be likely to move cargoes along microtubules toward the periphery of the cell o B A dynein would be the most likely motor protein to deliver a signal from the cell periphery to the nucleus O C Myosin I can control cell shape by pulling the plasma membrane along actin filaments D M yosin II promotes flagella movement...
of the three types of fibers; microfilaments (or and intermediate filaments are fibers with diameters in a Microtubules are the filaments) are the middle range. Microtubules are hollow rods about 25 nm in diameter and 200 nm to 25 um in length. Microtubule fibers are constructed of the globular protein A tubulin dimer consists of two slightly different polypeptides: a-tubulin and B-tubulin. Microtubules shape and support the cell and serve as tracks to guide motor proteins carrving organelles to their...
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