Biology
12th Edition
ISBN: 9781260494570
Author: Raven, Peter
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Textbook Question
Chapter 4, Problem 5U
The cytoskeleton includes
a. microtubules made of actin filaments.
b. microfilaments made of tubulin.
c. intermediate filaments made of twisted fibers of vimentin and keratin.
d. smooth endoplasmic reticulum.
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The cytoskeleton includesa. microtubules made of actin filaments.b. microfilaments made of tubulin.c. intermediate filaments made of staggered protein tetramers.d. smooth endoplasmic reticulum.
Mark the following statements about the cytoskeleton as true or false. If a statement is false, correct it to make a true statement.a. _____ Actin filaments combine with myosin motor proteins to provide the cell with mechanical strength.b. _____ The cilia found on sperm cells propel the cells through a liquid medium.c. _____ Microtubules are hollow tubes that align organelles and shuttle them to their proper places in the cell.d. _____ Intermediate filaments are ropelike structures composed of tubulin proteins.e. _____ Centrioles are part of the centrosome from which microtubules originate.f. _____ Endocytosis, exocytosis, muscle cell contraction, and cellular “crawling” are all mediated by intermediate filaments
Explain how the form of each of the following structures is related to its function: a. Cilia b. Microvilli c. Intermediate filaments d. Lysosomes e. Nuclear envelope
Chapter 4 Solutions
Biology
Ch. 4.1 - Discuss the cell theory.Ch. 4.1 - Describe the factors that limit cell size.Ch. 4.1 - Prob. 3LOCh. 4.2 - Describe the organization of prokaryotic cells.Ch. 4.2 - Prob. 2LOCh. 4.3 - Prob. 1LOCh. 4.3 - Prob. 2LOCh. 4.3 - Prob. 3LOCh. 4.4 - Prob. 1LOCh. 4.4 - Contrast the different functions of internal...
Ch. 4.4 - Prob. 3LOCh. 4.5 - Describe the structure of mitochondria and...Ch. 4.5 - Compare the function of mitochondria and...Ch. 4.5 - Prob. 3LOCh. 4.6 - Contrast the structure and function of different...Ch. 4.6 - Prob. 2LOCh. 4.7 - Prob. 1LOCh. 4.7 - Prob. 2LOCh. 4.7 - Prob. 3LOCh. 4.8 - Prob. 1LOCh. 4.8 - Prob. 2LOCh. 4 - Prob. 1IQCh. 4 - Prob. 2IQCh. 4 - Prob. 3IQCh. 4 - Which of the following statements is NOT part of...Ch. 4 - All cells have all of the following except a....Ch. 4 - Eukaryotic cells are more complex than prokaryotic...Ch. 4 - Which of the following are differences between...Ch. 4 - The cytoskeleton includes a. microtubules made of...Ch. 4 - The smooth endoplasmic reticulum is a. involved in...Ch. 4 - Plasmodesmata in plants and gap junctions in...Ch. 4 - The most important factor that limits the size of...Ch. 4 - All eukaryotic cells possess each of the following...Ch. 4 - Adherens junctions, which contain cadherin, are...Ch. 4 - Different motor proteins like kinesin and myosin...Ch. 4 - The protein sorting pathway involves the following...Ch. 4 - Chloroplasts and mitochondria have many common...Ch. 4 - Prob. 7ACh. 4 - The smooth endoplasmic reticulum is the site of...Ch. 4 - Use the information provided in table 4.3 to...Ch. 4 - Prob. 3SCh. 4 - The protist Giardia intestinalis is the organism...
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- The cytoskeleton of a cell consists of all of the following, excepta. microtubules.b. actin fi laments.c. extracellular matrix.d. intermediate fi laments.arrow_forwardWhich of the following is a feature common to all three components of the cytoskeleton? a. They all serve to scaffold the organelles within the cell. b. They are all characterized by roughly the same diameter. c. They are all polymers of protein subunits. d. They all help the cell resist compression and tension.arrow_forwardList the three types of filaments associated with the cytoskeleton. Identify the structures in cells that are composed of microtubules.arrow_forward
- Which of the following is a component of the cytoskeleton? a. collagen b. dynein c. elastin d. chromatinarrow_forwardGive the respective structural descriptions and functions of the following: 1. Cell Membrane 2. Nucleus 3. Nucleolus 4. Smooth Endoplasmic Reticulum 5. Rough Endoplasmic Reticulum 6. Nuclear Membrane 7. Mitochondria 8. Golgi Apparatus 9. Cytoskeletonarrow_forwardcertain cells in the pancreas of animals produce and secrete insulin. Which of the following organelles would be found in abundance in these cells? a.) centrioles and spindle fibers b.) lysosomes and peroxisomes c.) rough ER and golgi apperatusarrow_forward
- Which of the following is not a function of the smooth endoplasmic reticulum? Group of answer choices a.Provides a site for ribosome attachment b.Supplies membrane for use throughout the cell c.Makes steroid hormones d.Makes glycoproteinsarrow_forwardEnzymes contained in break down worn-out organelles, bacteria, and other particles. a. lysosomes c. endoplasmic reticulum b. amyloplasts d. peroxisomesarrow_forwardOf the following organelles associated with the endomembrane system, which group is primarily imvolved in synthesizing molecules needed by the cell:? Select one or more a. Smooth endoplasmic reticulum, ribosome vacuole b. Ribosome, rough endoplasmic reticulum, smooth endoplasmic reticulum c Rough endoplasmic reticulum, lysosoroe, vacuole d. Vacuole, rough endoplasmic reticulum, smooth endoplasmic reticulum e Lysosome, vacuole, ribosome DOOOarrow_forward
- Match each following organelle with its function: Select the INCORRECT match. a. Cytoskeleton/ Network of microtubulesand microfilaments b. RER/ Has sites for protein synthesis c. Nucleus/ Site of ribosome synthesis d. SER/ Contains enzymes for lipid synthesisarrow_forwardWhat is the Description and Function of these organelles? Explain in 2-3 sentencesDescription:Function: a. Cell membrane b. Nucleus c. Mitochondria d. Lysosome e. Endoplasmic Reticulum f. Cytoskeleton g. Centrioles h. Ribosomes i. Golgi complexarrow_forwardMicrofilaments participate in the formation of _________ and are made of ________: a. cilia, tubulin b. flagella, tubulin c. cell cleavage furrows, actin d. basal bodies, actin e. mitotic spindles, actin ...explain your answer.arrow_forward
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