Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134256283
Author: Audesirk
Publisher: PEARSON
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Question
Chapter 4, Problem 2AC
Summary Introduction
To review:
The role of cytoskeleton in plant cells.
Introduction:
The cytoskeleton comprises three types of proteins—microfilaments, intermediate filaments, and microtubules. In plants, the cells have a cell wall which gives shape to the cell and provides most of the structural support, but the cytoskeleton serves various other functions.
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Students have asked these similar questions
From the image, what is the normal function of the missing structure?
A. A lipid bilayer controlling the movement of substances into and out of the cell
B. A motor protein that "crawls" along microtubules to contract and release them, which provides movement
C. A cytoskeleton element composed of tubulin subunits to provide structure for movement of the cell
In plants, the cell wall forms as a young plant cell secretes polysaccharides onto the outer surface of its plasma membrane. Being thin and pliable, this primary wall allows the cell to enlarge and change shape. At maturity, cells in some plant tissues deposit material onto the primary wall’s inner surface. Why doesn’t this secondary wall form on the outer surface of the primary wall?
"Without the cytoskeleton, the cell will not be able to perform any of its functions."
Is there truth behind this claim? explain
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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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
- Why is it advantageous for the cell membrane to be fluid in nature?arrow_forwardNo animal cell has a ______. a. plasma membrane b. flagellum c. lysosome d. cell wallarrow_forwardThe eukaryotic cell in the photo on the left is in the process of cytoplasmic division. Is this cell from a plant or an animal? How do you know?arrow_forward
- Which of the following is not a component of the endomembrane system? a. mitochondrion b. Golgi apparatus c. endoplasmic reticulum d. Iysosomearrow_forwardThe tails of the phospholipids of the plasma membrane are composed of _____ and are _____? a. phosphate groups; hydrophobic b. fatty acid groups; hydrophilic c. phosphate groups; hydrophilic d. fatty acid groups; hydrophobicarrow_forwardWhich plasma membrane component can be either found on its surface or embedded in the membrane structure? a. protein b. cholesterol c. carbohydrate d. phospholipidarrow_forward
- In 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_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_forwardWhich of the following best describes the pH of the lysosomal interior? a.) The interior of a lysosome generally has a pH similar to cytoplasm b.) The interior of a lysosome generally has a pH higher than cytoplasm c.) The interior of a lysosome generally has a pH lower than cytoplasmarrow_forward
- Why is it unnecessary for our cells to have a cell wall? What might happen if the lysosomes inside a cell stopped working properly?arrow_forwardEach compartment of the endomembrane system of a cell is connected to the plasma membrane. Create a simple diagram of a cell including the RER, Golgi apparatus, vesicle, and the plasma membrane. Starting with the RER, use two different colors to represent the inner and outer halves of the bilayer for each of these membranes. What do you observe?arrow_forwardThe cytoskeleton of a cell consists of all of the following, excepta. microtubules.b. actin fi laments.c. extracellular matrix.d. intermediate fi laments.arrow_forward
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