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Cell Physiology: Lysosomes and Cellular Respiration Quiz

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Cell Physiology: Lysosomes and Cellular Respiration Quiz

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Questions and Answers

What is the main function of the cell membrane?

Facilitation of carbohydrate synthesis

Coordination of extracellular changes

Maintenance of cell shape and attachment to cytoskeleton (correct)

Regulation of cellular respiration

Which component makes up the highest percentage of the cell membrane?

Proteins

Lipids (correct)

Carbohydrates

Cholesterol

What is the role of cholesterol in maintaining cell membrane fluidity?

Increasing saturation of fatty acids

Preventing solidification of phospholipids during low temperatures (correct)

Promoting transverse diffusion of lipids

Enhancing lateral movement of proteins

Which kind of movement is essential for the effective functioning of the cell membrane?

Rotation about its long axis Signup and view all the answers

What is the main function of the cell coat on animal cells?

Containing carbohydrates Signup and view all the answers

In what kind of movement does the cell membrane phospholipids rotate?

Lateral movement Signup and view all the answers

What prevents the solidification of phospholipids in the cell membrane during low temperatures?

Increased saturation of fatty acids Signup and view all the answers

What catalyzes the 'flip-flop' movement of cell membrane phospholipids?

'Flippase' enzyme Signup and view all the answers

Which factor contributes to increased cell membrane fluidity during low environmental temperature?

'Lateral' movement of lipids Signup and view all the answers