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BIOL 133 CHAPTER 4 Midterm Exam Questions And All Correct 100% Answers.
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If an integrin protein is mutated, what cell function might be affected? A. communication between cytoskeleton and proteglycan B. fluidity of phospholipids C. cellular motility D. cytoplasmic communication - Answer A. communication between cytoskeleton and proteglycan ___ prevent material...

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  • November 5, 2024
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  • 2024/2025
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BIOL 133 CHAPTER 4 Midterm Exam
Questions And All Correct 100%
Answers.
If an integrin protein is mutated, what cell function might be affected?

A. communication between cytoskeleton and proteglycan

B. fluidity of phospholipids

C. cellular motility

D. cytoplasmic communication - Answer A. communication between cytoskeleton and proteglycan



___ prevent material from moving in or out of the brain's capillaries

A. desmosomes

B. plasmodesmatas

C. gap junctions

D. tight junctions - Answer D. tight junctions



The cell theory states

A. all organisms are composed of multiple cells, all cells arise spontaneously and cells require nutrients

B. all organisms are composed of one or more cells, all cells are the smallest living things and all cells
arise from other cells

C. all cells will contain DNA, all cells are the smallest living things that can divide and all organisms are
composed of cells

D. all cells are the smallest living things, all organisms are composed of one or more cells and all cells
arise spontaneously - Answer B. all organisms are composed of one or more cells, all cells are the
smallest living things and all cells arise form other cells



Cardiac muscle requires junctions that allow electrical signals through. Cardiac muscle also relies on
calcium to contract. What junction is involved and what organelle stores calcium?

A. desmosomes, smooth ER

B. plasmodesmata, rough ER

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