Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 4, Problem 20RQ
Which of the following do not play a role in intracellular movement?
- microfilaments and intermediate filaments
- microfilaments and microtubules
- intermediate filaments and microtubules
- only intermediate filaments
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Which of the following CORRECTLY describes a similarity when comparing actin filaments and
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Actin and microtubules have polarity, intermediate filaments have no polarity. What is the main consequence of this difference?
Chapter 4 Solutions
Biology 2e
Ch. 4 - Figure 4.7 Prokaryotic cells are much smaller than...Ch. 4 - Figure 4.8 If the nucleolus were not able to carry...Ch. 4 - Figure 4.18 If a peripheral membrane protein were...Ch. 4 - When viewing a specimen through a light...Ch. 4 - The is the basic unit of life organism cell tissue...Ch. 4 - Prokaryotes depend on to obtain some materials and...Ch. 4 - Bacteria that lack fimbriae are less likely to...Ch. 4 - Which of the following organisms is a prokaryote?...Ch. 4 - Which of the following is surrounded by two...Ch. 4 - Peroxisomes got their name because hydrogen...
Ch. 4 - In plant cells, the function of the lysosomes is...Ch. 4 - Which of the following is both in eukaryotic and...Ch. 4 - Tay-Sachs disease is a genetic disorder that...Ch. 4 - Which of the following is not a component of the...Ch. 4 - The process by which a cell engulfs a foreign...Ch. 4 - Which of the following is most likely to have the...Ch. 4 - Which of the following sequences correctly lists...Ch. 4 - Congenital disorders of glycosylation are a...Ch. 4 - Which of the following have the ability to...Ch. 4 - Which of the following do not play a role in...Ch. 4 - In humans, are used to move a cell within its...Ch. 4 - Which of the following are only in plant cells?...Ch. 4 - The key components of desmosomes are cadherins...Ch. 4 - Diseased animal cells may produce molecules that...Ch. 4 - In your everyday life, you have probably noticed...Ch. 4 - In what situation(s) would the use of a scanning...Ch. 4 - In what situation(s) would a transmission electron...Ch. 4 - What are the advantages and disadvantages of each...Ch. 4 - Explain how the formation of an adult human...Ch. 4 - Antibiotics are medicines that are used to fight...Ch. 4 - Explain why not all microbes are harmful.Ch. 4 - You already know that ribosomes are abundant in...Ch. 4 - What are the structural and functional...Ch. 4 - Why are plasma membranes arranged as a bilayer...Ch. 4 - In the context of cell biology, what do we mean by...Ch. 4 - In your opinion, is the nuclear membrane part of...Ch. 4 - What are the similarities and differences between...Ch. 4 - How do cilia and flagella differ?Ch. 4 - Describe how microfilaments and microtubules are...Ch. 4 - Compare and contrast the boundaries that plant,...Ch. 4 - How does the structure of a plasmodesma differ...Ch. 4 - Explain how the extracellular matrix functions.Ch. 4 - Pathogenic E. coil have recently been shown to...
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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
- Actin filaments and microtubules are similar with respect to each of the following EXCEPT: inherent polarity with plus and minus ends growth requires an organizing center association with motor proteins both are polymers of subunits regular remodelingarrow_forwardDescribe two similarities and two differences between actin filaments and microtubules.arrow_forwardMuscular dystrophy is caused by a mutation in dystrophy, and intracellular protein that binds to the cytoskeleton. Dystropin also binds to _____, which is found in plasma membrane of the cell and binds the extracellular matrix. Actin filament Gap junction Integrin Cadherin Tight junctionarrow_forward
- Several types of cells use the actin cytoskeleton to power their locomotion across surfaces. How are different assemblies of actin filaments involved in locomotion?arrow_forwardcan microtubule replace actin filament？why or why not？arrow_forwardMatch the following Actin filaments Intermediate filaments Microtubules [Choose ] Most concentrated just under the cell membrane and help maintain the shape of cellular projections ✓ Support cell shape and fix organelles in place Act as track for organelles and other materials to move Most concentrated just u [Choose ]arrow_forward
- There are types of cytoskeleton fiber- intermediate filaments. Tell their structure and/or function.arrow_forwardYou’re having a discussion with a colleague who insists that intermediate filaments, IFs, provide very little mechanical strength to cells. How can you rebut this and provide quantitative, experimental evidence to measure the strength of an intermediate filament using microscopy?arrow_forwardIntermediate filaments (IFs) function to provide mechanical strength to the cell and for internal organization of the cells. The intermediate filament _______________ plays a key role in connecting epithelial cells to the extracellular matrix. The IF binding protein________ plays key role in connecting the IFs in the nucleus with the cytoskeleton in the cytoplasm to help position the nucleus. keratin, SUN-domain protein SUN-domain proteins, lamin lamin, keratin SUN-domain proteins, keratin lamin, SUN-domain protein keratin, laminarrow_forward
- The cell skeleton In the cell there are three types of filaments that form the cell skeleton. answer:a) What they are b) How they are structured c) What function they havearrow_forwardMany diseases are characterized by fibrosis, which is excess scarring. This scarring is often caused by too much collagen accumulating in the extracellular matrix. Which of the following strategies is MOST likely to work for preventing fibrosis? O Altering the endomembrane system to increase collagen secretion. O Altering the endomembrane system to decrease detection of the internal start transfer sequence of collagen. O Altering the endomembrane system to increase collagen endocytosis. Altering the nuclear export of collagen via lamins, followed by kinesin-mediated exocytosis.arrow_forwardWhich of the followings is not true about the function of the Tight Junctions? (LO- K8) They hold the cells together They act as a barrier They help maintain cell polarity They prevent lateral diffusion of proteins, ions, molecules They play an important role in maintaining the blood brain barrier They connect the adjacent cells intercellularly to the intermediate cytoskeletal filamentsarrow_forward
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