Biological Science, Books a la Carte Plus Mastering Biology with Pearson eText -- Access Card Package (6th Edition)
6th Edition
ISBN: 9780134296029
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Greg Podgorski, Emily Taylor, Jeff Carmichael
Publisher: PEARSON
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Chapter 11, Problem 3TYK
Summary Introduction
Introduction:
Desmosome is a cell structure in animal tissues connecting two adjacent cells specializing in cell-to-cell adhesion.
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Which statement is not true of endoplasmic reticulum?
A. There is smooth and rough endoplasmic reticulum.
B. It is found in all living cells.
C. Rough ER has ribosomes bound to it.
D. Proteins are transported and modified within it.
E. Proteins can be targeted for ER transportation.
Diseased animal cells may produce molecules thatactivate death cascades to kill the cells in a controlledmanner. Why would neighboring healthy cells also die?a. The death molecule is passed throughdesmosomes.b. The death molecule is passed throughplasmodesmata.c. The death molecule disrupts the extracellularmatrix.d. The death molecule passes through gap junctions.
Dynein uses ATP to
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propel axoneme arms together
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Chapter 11 Solutions
Biological Science, Books a la Carte Plus Mastering Biology with Pearson eText -- Access Card Package (6th Edition)
Ch. 11 - What is a fiber composite? How do cellular fiber...Ch. 11 - Prob. 2TYKCh. 11 - Prob. 3TYKCh. 11 - Prob. 4TYKCh. 11 - Prob. 5TYUCh. 11 - Summarize the experimental evidence in sponges...Ch. 11 - 7. QUANTITATIVE Suppose you were to model...Ch. 11 - What is the significance of the observation that...Ch. 11 - Prob. 9TYPSSCh. 11 - Prob. 10TYPSS
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- Which is/are true of epithelial cells?a. They can only move uncharged molecules across their surfaces.b. They may have segregated functions on apical (luminal) and basolateralsurfaces.c. They cannot form tight junctions.d. They depend upon the activity of Na1/K1-ATPase pumps for much of their transport functions.e. Both b and d are correct.arrow_forwardWhich of the following is not a function of proteins present in theplasma membrane?a. Proteins assist the passage of materials into the cell.b. Proteins interact with and recognize other cells.c. Proteins bind with specific hormones.d. Proteins carry out specific metabolic reactions.e. Proteins produce lipid molecules.arrow_forwardWhat is the name of the phenomenon in which a white blood cell engulfs a pathogen? Which cytoskeletal structures are involved in this process? a. phagocytosis and microtubules. b.phagocytosis and microfilaments. c. pinocytosis and microtubules d. d. pincytosis and microfilamentsarrow_forward
- What type of cell is long fibers with striations and many nuclei which can be controlled voluntarily or involuntarily? a.skeletal muscle cells b.red blood cells c.stratified squamous epithelial cells d.nerve cells e.all of the cell typesarrow_forwardThe gap junctions of animal cells differ from the plasmodesmata ofplant cells in thata. gap junctions serve as communicating junctions and plasmodesmataserve as anchoring junctions.b. gap junctions prevent extracellular material from moving betweenadjacent cells but plasmodesmata do not.c. gap junctions allow for direct exchange of cellular material betweencells but plasmodesmata cannot allow the same type of exchange.d. gap junctions are formed by specialized proteins that form channelsthrough the membranes of adjacent cells but plasmodesmata areformed by connecting the plasma membranes of adjacent cells.e. All of the above are correct.arrow_forwardWhat is a microfilament? A. A cytoskeletal element composed of tubulin that forms a dynamic scaffolding for many cellular processes involving movement B. A type of energy-using protein that interacts with cytoskeletal elements to move the cell C. A stable cytoskeletal element composed of fibrous proteins that structurally supports cells and tissues D. A cytoskeletal element made of actin that reinforces cell membranes and functions in cell movementarrow_forward
- In the model, What letters of the organelles that will help Malia determine whether this cell belongs to a plant or animal.arrow_forwarda. What is the main class of proteins that cells use to adhere to theextracellular matrix? b. How many proteins are in this family? c. What are some ECM proteins that they bind? (answer a, b, and c)arrow_forwardBiology Cell adhesion can often be blocked in vitro by treating cells with specific agents. Which of the enzymes (out of Trypsin; neuraminidase; collagenase; hyaluronidase) would be expected to interfere with cell adhesion mediated by: a. selectins? b. with cell adhesion mediated by L1 molecules? Also explain the underlying mechanism of this interferencearrow_forward
- When Covid 19 infects one cell, the cell next door is supposed to get signaled to start preparing its defenses against the invading virus. What type of direct cellular connection in human cells would allow this communication? Select one: a. anchoring junctions like desmosomes b. Plasmodesmata c. Tight junctions with claudin and occludin d. gap junctionsarrow_forwardWhich type of epithelial cell is best adapted to aid diffusion? a. squamous b. cuboidal c. columnar d. transitionalarrow_forwardThe tigroid lysis is observed in a case of functional exhaustion of the neuron. It is resulted in decay of basophilic substance and brightening of the neuroplasma. What organelles changes do this phenomenon is associated with? a. Granular endoplasmic reticulum O b. Lysosomes O c. Neurofibrils d. Golgi apparatus O e. Mitochondriaarrow_forward
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