Which of the following is NOT true of intermediate filaments? A They provide mechanical strength to cells. B They are composed of 8 oppositely oriented tetramers that are assembled into a rope-like filament. C They have a non-polar orientation. D They are rigid and do not deform before breaking E Keratins, neurofilaments, vimentin, and desmin are examples of intermediate filaments.

Which of the following is NOT true of intermediate filaments? A They provide mechanical strength to cells. B They are composed of 8 oppositely oriented tetramers that are assembled into a rope-like filament. C They have a non-polar orientation. D They are rigid and do not deform before breaking E Keratins, neurofilaments, vimentin, and desmin are examples of intermediate filaments.

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter8: Muscle Physiology

Section: Chapter Questions

Problem 2TAHL

See similar textbooks

QUESTION 10

Which of the following is NOT true of intermediate filaments?

	A	They provide mechanical strength to cells.
	B	They are composed of 8 oppositely oriented tetramers that are assembled into a rope-like filament.
	C	They have a non-polar orientation.
	D	They are rigid and do not deform before breaking
	E	Keratins, neurofilaments, vimentin, and desmin are examples of intermediate filaments.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Introduction

VIEW

Answer

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.

Similar questions

QUESTION 6 Which of the following is NOT an example of an intermediate filament? A Neurofilaments in neuronal cells B Keratins in epithelial cells C Nuclear lamins in most cells D Laminin in the basement membrane E Vimentin in fibroblast cells
Question 33 What occurs when the sarcomere length of skeletal muscle is reduced beyond the length w optimum force is developed? The amount of calcium released by the sarcoplasmic reticulum is reduced as length increases. The thin filaments are pulled away from one another, thereby reducing their ability to interact with The thick filaments are pulled away from one another, thereby reducing their ability to interact with The thick filaments overlap one another, thereby reducing their ability to interact with actin. The thin filaments overlap one another with myosin bumping into the Z-line, thereby causing the fo generated by cross bridges to be exerted on the sarcomere itself rather than transmitted to the end muscle fiber. Previous Question 34 During exercise, CO2 produced by muscle cells causes hyperemia. This is an example of Vasodilation; active Vasodilation; reactive Vasoconstriction : active Vasoconstriction: reactive
QUESTION 5 Which of the following is NOT true of intermediate filaments? A They provide mechanical strength to cells. B They are composed of 8 oppositely oriented tetramers that are assembled into a rope-like filament. C They have a non-polar orientation. D They are rigid and do not deform before breaking. E Keratins, neurofilaments, vimentin, and desmin are examples of intermediate filaments.
QUESTION 10 Which of the following statements is false concerning the motor protein families of kinesins and dyneins? Kinesins and dyneins A OG OD. have tails that bind to the actin filaments move along microtubules, actin filaments, and intermediate filaments derive their energy strictly from GTP hydrolysis All of the above
QUESTION 9 Which of the following statements describes what happens during the sliding filament mechanism? A Thick filaments shorten while thin filaments remain unchanged. B.Z discs slide over the thick and thin filaments. C. Both thick and thin filaments shorten. D.Thin filaments slide past thick filaments towards the M line.
QUESTION 15 Which of the following molecules is NOT a component of desmosomes? A Intermediate filaments B Actin C Plakoglobin D Desmoplakin E Desmocolin
QUESTION 9 All of the following are related to the Basal Lamina EXCEPT: O Integrin Proteins OLaminin O Collagen IV O Proteoglycans All of the above are related
QUESTION 3 Compared to the muscle fiber type that readily fatigues, fatigue resistant muscle fibers: O Have fewer mitochondria O None of the other answers. O Contract more quickly O Contain less myoglobin QUESTION 4 In muscle, when calcium is moving from the sarcoplasm to the sarcoplasmic reticulum, it is moving: O along its gradient using ion channels O against its gradient using pumps O against its gradient using ion channels O along its gradient using pumps QUESTION 5 In the heart, blood flows from: O artery to ventricle to atrium to vein artery to atrium to ventricle to vein vein to ventricle to atrium to artery O vein to atrium to ventricle to artery
QUESTION 11 What is the molecular explanation for the observation that the I band appears to shorten in a muscle sarcomere that is undergoing contraction? A The actin filaments shorten. B The sarcomere is disassembled. C a and b D The myosin filaments walk along the actin filaments towards the Z-line to increase the amount of overlap between actin and myosin. E The myosin filaments shorten.
Question 23 Thin Filaments contain A. Actin OB. Troponin OC. Tropomyosin OD. All of the above OE. None of the above
Question 9 of 16 Which of the following causes the merging of synaptic vesicles with the synaptic knob membrane and the subsequent exocytosis of ACh? Select the correct response: exit of Cl- from the synaptic knob entry and binding of Na+ to synaptic vesicles exit of K+ from the synaptic knob entry and binding of acetylcholinesterase to synaptic vesicles entry and binding of Ca2+ to synaptic vesicles
QUESTION 16 If the concentration of calcium ion (Ca2*) in the cytosol of a skeletal muscle cell is low, then troponin covers the actin binding sites on the thick filament troponin holds the myosin light chains in a strained conformation tropomyosin prevents the cross-bridges from being energized tropomyosin covers the myosin binding sites on the thin filament