What Is Life? A Guide to Biology with Physiology
4th Edition
ISBN: 9781319065447
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 4, Problem 9MC
Summary Introduction
Introduction:
A cell wall is an additional layer of rigid support seen in some organisms.
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Which of the following statements is False?a. Photosynthesis occurs in plastids.b. Chloroplasts extract energy from food storagemolecules.c. Mitochondria likely originated from prokaryotic cells.d. Plant cell walls are a type of extracellular matrix.
Junctions that permit the transfer of water, ions, and molecules between adjacent plant cells are (a) tight junctions (b) adhering junctions (c) desmosomes (d) gap junctions (e) plasmodesmata
Which of the following is true for both plant and animal cells?
a)
They both contain a cytoskeleton.
b)
They both have a cell wall.
c)
They both contain centrioles for cell division.
d)
They both contain chlorophyll.
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What Is Life? A Guide to Biology with Physiology
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- The main difference between plant and animal cells is: A Plant cells has small vacuoles B Animal cell lacks rigid cell wall C Animal cells has large vacuoles D Plant cell lacks rigid cell wallarrow_forwardIn a beaker containing 0% NaCl, you place a cell which contains 0.9% NaCl. NaCl doesn t cross the membrane. What will be the result?" a There will be net movement of water into the cell. b There will be net movement of NaCl into the cell. c There will be net movement of water out of the cell. d There will be net movement of NaCl out of the cell. e The cell will swell.arrow_forwardWhich of these conclusions can be made about a plant leaf without the use of microscope technology? (a) a leaf is multicellular (b) a leaf is made of one cell (c) a plant's cells are all identical (d) a plant's cells are all differentarrow_forward
- Describe the structure and function of Plant cell walls. What is the composition of Animal cells ECM? What are the critical functions of ECM?arrow_forwardA biochemist grinds up a sample of plant roots, fungal mycorrhizae, and soil-dwelling arthropods. They then extract a mix of several polymeric molecules. Of the polymers found within the sample, which of the following molecules is least likely to be used as a component of a cell wall? Group of answer choices A. Chitin B. Glucan C. Starch D. Cellulosearrow_forwardA student ground up some plant leaf cells and then centrifuged the mixture to fractionate the organelles. Organelles in the one of the heavier fractions could produce ATP in the light, while those in the lighter fraction could produce ATP in the dark. The heavier fractions are most likely to contain ___ aside from mitochondria. A. Peroxisomes B. Starch granule C. Chloroplasts D. Plasmodesmaarrow_forward
- In animal cells, lysosomes are the organelles in charge of digesting enzymes withnutrients that the cell consumes. If all the lysosomes in a cell were to break, what wouldwould initially happen to the cell?A. Molecules within it would degrade.B. It would lose all the water in the cytoplasm.C. There would be no cellular respiration.D. No proteins would form.arrow_forwardTo carry out its life functions, every plant cell requires (a) chloroplasts and ribosomes (b) mitochondria and ribosomes (c) mitochondria, chloroplasts, and lysosomes (d) mitochondria and chloroplasts (e) chloroplasts and a vacuolearrow_forwardWhich of the following statements correctly describes one difference between green algae and land plants? A. green algae are often unicellular, while land plants are not B. land plants have plastids and green algae do not C. algae have alternation of generations but land plants do not D. land plants have cell walls containing cellulose but green algae do notarrow_forward
- What direction is the sugar molecule (the blue hexagon) going to diffuse? a. Into the cytoplasm b. Into the extracellular fluid (i.e. the fluid outside the cell) c. The same number of sugar molecules will move into the cytoplasm and the extracellular fluid. d. No diffusion will occur - the membrane prevents all molecules from entering or exiting a cell.arrow_forwardIn 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?arrow_forwardCell junctions called connect the cytoplasm of adjacent plant cells. a. plasmodesmata d. adhesion proteins b. adhering junctions e. chloroplasts c. tight junctions f. gap junctionsarrow_forward
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