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Essential Cell Biology Ch 20, Chapter 18 final exam 2023 graded A answers

Essential Cell Biology Ch 20, Chapter 18
final exam 2023 graded A answers
Both multicellular plants and animals have _____________________.
(a) cells capable of locomotion.
(b) cells with cell walls.
(c) a cytoskeleton composed of actin filaments, microtubules, and intermediate filaments.
(d) tissues composed of multiple different cell types. - answer-d
Which of the following statements about plant cell walls is true?
(a) The microtubule cytoskeleton directs the orientation in which cellulose is deposited in the cell wall.
(b) The molecular components of the cell wall are the same in all plant tissues.
(c) Because plant cell walls are rigid, they are not deposited until the cell has stopped growing.
(d) The cellulose found in cell walls is produced as a precursor molecule in the cell and delivered to the
extracellular space by exocytosis. - answer-a
20-5 Which of the following molecules is not found in plants?
(a) cellulose
(b) lignin
(c) collagen
(d) pectin - answer-c
Which of the following statements about cellulose is false?
(a) Cellulose synthase enzyme complexes are integral membrane proteins.
(b) An array of microtubules guides the cellulose synthase complex as it moves in the membrane.
(c) The sugar monomers necessary for the synthesis of a cellulose polymer are transported across the
plasma membrane.
(d) Microtubules are directly attached to the outside surface of the plasma membrane to form tracks
that help orient the cellulose polymers. - answer-d
Which of the following is not an example of a connective tissue?
(a) bone
(b) the layer of photoreceptors in the eye
(c) the jellylike interior of an eye
(d) cartilage - answer-b

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Level: University
School: Chamberlain College Of Nursing
Course: Biology
Document
Section: Examinations
Made on: 05-09-2024
Type: .pdf
Pages: 29
Language: English
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Essential Cell Biology Ch 20 Chapter 18 final exam 2023 graded A answers

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