Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134168296
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 2MC
Which of the following is not a function of the cytoskeleton?
organelle movement
extracellular support
cell movement
maintenance of cell shape
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Which of the following is NOT a component of the cytoskeleton?
Microtubules
intermediate filaments
Microfilaments
Primary filaments
Which of the following is NOT a function of the cytoskeleton?
Group of answer choices
Helps maintain the shape of the cell
Assists in cellular movement
Participates in ATP formation
All of the above
None of the above
Cytoskeleton is important for the proper function of cell and one of its components is :
microtubles
plastids
ribosomes
cytoplasm
chromosomes
Chapter 4 Solutions
Biology: Life on Earth (11th Edition)
Ch. 4 - 1. Which of the following is/are found only in...Ch. 4 - Which of the following is not a function of the...Ch. 4 - Prob. 3MCCh. 4 - 4. Which of the following is not a location of...Ch. 4 - Which of the following statements is False?...Ch. 4 - The plasma membrane is composed of two major types...Ch. 4 - The three types of cytoskeleton fibers are...Ch. 4 - Prob. 3FTBCh. 4 - 4. Antibody proteins are synthesized on ribosomes...Ch. 4 - After each description, fill in the appropriate...
Ch. 4 - Two organelles that are believed to have evolved...Ch. 4 - 7. What structure in bacterial cells is composed...Ch. 4 - 1. What are the three principles of the cell...Ch. 4 - 2. Which cytoplasmic structures are common to both...Ch. 4 - Prob. 3RQCh. 4 - Describe the nucleus and the function of each of...Ch. 4 - What are the functions of mitochondria and...Ch. 4 - What is the function of ribosomes? Where in the...Ch. 4 - Describe the structure and function of the...Ch. 4 - 8. How are lysosomes formed? What is their...Ch. 4 - 9. Diagram the structure of eukaryotic cilia and...Ch. 4 - List the structures of bacterial cells that have...Ch. 4 - Prob. 1ACCh. 4 - Prob. 2ACCh. 4 - What problems would an enormous round cell...
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- Enzymes contained in __________ break down worn-out organelles, bacteria, and other particles. a. lysosomes b. mitochondria c. endoplasmic reticulum d. peroxisomesarrow_forwardWhich of the following is not a component of the endomembrane system? a. mitochondrion b. Golgi apparatus c. endoplasmic reticulum d. Iysosomearrow_forwardAssign a function(s) to the following cellular structures: a. plasma membrane b. mitochondrion c. nucleus d. ribosomearrow_forward
- Organelles and Cystic Fibrosis A plasma membrane transport protein called CFTR moves chloride ions out of cells lining cavities and ducts of the lungs, liver, pancreas, intestines, and reproductive system. Water that follows the ions creates a thin film that allows mucus to slide easily through these structures. People with cystic fibrosis (CF) have too few copies of the CFTR protein in the plasma membranes of their cells. Not enough chloride ions leave the cells, and so not enough water leaves them either. The result is thick, dry mucus that clogs the airways to the lungs and other passages. Symptoms include difficulty breathing and chronic lung infections. In 2000, researchers tracked the cellular location of the CFTR protein as it was being produced in cells from people with CF (Figure 3.13). Figure 3.13 Cellular location of the CFTR protein. Graph compares the amounts of CFTR protein found in endoplasmic reticulum, vesicles travel in g from ER to Golgi, and Golgi bodies in CF cells and normal cells. Which organelle contains the least amount of CFTR protein in normal cells? In CF cells?arrow_forwardOrganelles and Cystic Fibrosis A plasma membrane transport protein called CFTR moves chloride ions out of cells lining cavities and ducts of the lungs, liver, pancreas, intestines, and reproductive system. Water that follows the ions creates a thin film that allows mucus to slide easily through these structures. People with cystic fibrosis (CF) have too few copies of the CFTR protein in the plasma membranes of their cells. Not enough chloride ions leave the cells, and so not enough water leaves them either. The result is thick, dry mucus that clogs the airways to the lungs and other passages. Symptoms include difficulty breathing and chronic lung infections. In 2000, researchers tracked the cellular location of the CFTR protein as it was being produced in cells from people with CF (Figure 3.13). Figure 3.13 Cellular location of the CFTR protein. Graph compares the amounts of CFTR protein found in endoplasmic reticulum, vesicles traveling from ER to Golgi, and Golgi bodies in CF cells and normal cells. In which organelle is the amount of CFTR protein most similar in both types of cells?arrow_forwardIn the fluid mosaic model: plasma membrane proteins orient their hydrophilic sides toward the internal bilayer. phospholipids often flip-flop between the inner and outer layers. the mosaic refers to proteins attached to the underlying cytoskeleton. the fluid refers to the phospholipid bilayer. the mosaic refers to the symmetry of the internal membrane proteins and sterols.arrow_forward
- Which is NOT a general function of the cellular cytoskeleton? Regulation of intracellular transport Regulation of cell motility and cellular contraction Assembly of DNA into chromatin Separation of the chromosomes during mitosis Structural support for the cellarrow_forwardWhich of the following cell organelles digests and removes dead contents of a cell? Golgi apparatus mitochondria lysosome ribosomearrow_forwardWhich of the following statements is true about the Golgi bodies?arrow_forward
- Secretory vesicles containing insulin move to the plasma membrane at the cell surface and release the protein to neighboring blood capillaries. Which Cytoskeletal element is essential for this vesicle movement within a cell? Lamins Intermediate filaments Microtubules Microfilamentsarrow_forwardWhich of the following cellular organelles plays a role in digesting food particles? mitochondrion golgi aparatus nucleus lysosome rough endoplasmic reticulumarrow_forwardWhich of the following is not part of the endomembrane system? O Lysosome OGolgi apparatus O Endoplasmic reticulum Endosome O Mitochondrial membranearrow_forward
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