BIOLOGY W/CONNECT >IP<
11th Edition
ISBN: 9781259910487
Author: Raven
Publisher: MCG CUSTOM
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Textbook Question
Chapter 4, Problem 7U
Plasmodesmata in plants and gap junctions in animals are functionally similar in that
a. each is used to anchor layers of cells.
b. they form channels between cells that allow diffusion of small molecules.
c. they form tight junctions between cells.
d. they are anchored to the extracellular matrix.
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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.
Answer the Guide Question:
a) Each cell in an organism has all of the basic parts. Each has a function that benefits the other cells, how might the presence of different cell structures in plant and animal help them perform their functions as an organism. Explain.
b) Why is the cell membrane considered as the guard of the cell?
c) Why is the lysosome considered as the suicide bag of the cell?
Which of the following is not present in animal cells?
[A] Cell walls[B] Mitochondria[C] Ribosomes[D] Cytoplasm
Chapter 4 Solutions
BIOLOGY W/CONNECT >IP<
Ch. 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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- 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 of the following statements about plasmodesmata is true? a. They prevent cytoplasm from passing between cells. b. They are important in the formation of tight junctions. c. They may float freely in the cytoplasm or be membrane-bound. d. They allow adjacent plant cells to communicate with each other.arrow_forwardThe smooth endoplasmic reticulum is a. involved in protein synthesis. b. a site of protein glycosylation. c. used to store a variety of ions. d. the site of lipid and membrane synthesis.arrow_forward
- What is true about the membrane of the egg? Select one or more: a. It is semi-permeable which means that proteins, sugars and water can diffuse across the membrane b. It is impermeable which means that proteins, sugars but not water can diffuse across the membrane c. It is permeable, which means that proteins, sugars and water can diffuse across the membrane d. It is semi-permeable which means that water but not proteins or sugars can diffuse across the membranearrow_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_forwardFrom 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 cellarrow_forward
- Which of the following correctly compares how plant and animal cells differ?a. Plant cells have chloroplasts and mitochondria for energy, but animal cells do not have mitochondria.b. Plant cells have a cell membrane and cells walls for suppo, but animal cells do not have cell walls.c. Plant cells have ribosomes for synthesis, while animal cells have the Golgi apparatus.d. Plant cells have many small vacuoles for storage, while animal cells have one large central vacuole.arrow_forwardWithout a properly functioning membrane, a cell would (a) not be able to give instructions to its organelles (b) not be able to hold a rigid shape (c) not be able to absorb sunlight (d) not be able to remove waste materialsarrow_forwardThe 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_forward
- Most adjacent plant cells are connected by plasmodesmata, whereas only certain adjacent animal cells are connected through gap junctions. What might account for this difference?arrow_forwarda) What are the forces that maintain structural integrity of biological membranes?b) Explain how each force mentioned is formed in membrane lipids. c) Comment on lipid to protein ratio in the membrane of molecules that transport insoluble substances in the blood.arrow_forwardBased on the picture, the primary function of molecule #14 in an animal cell is: A. Structural support B. Mechanical contraction C. Energy storage D. Cellular transportarrow_forward
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