Cell Physiology: Functions of Different Components

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What is the primary function of microfilaments in the cytoskeleton?

To regulate the synthesis of ATP in the mitochondria

To facilitate the movement of organelles within the cytosol

To provide structural support for the cell

To generate movement and provide mechanical support (correct)

Which of the following cellular processes does NOT involve microfilaments?

Protein synthesis in the endoplasmic reticulum (correct)

Cell locomotion

Muscle contraction

Cell division

What is the primary function of the cytosol in a cell?

To store genetic material

To provide structural support for the cell

To synthesize proteins for export outside the cell

To act as a site for various chemical reactions required for the cell's existence (correct)

Which of the following is NOT a type of cytoskeletal filament?

Ribosomes Signup and view all the answers

What is the relationship between glycogen granules and lipid droplets in a cell?

They are both organelles found within the cytosol Signup and view all the answers

Which of the following is the correct order of the cytoskeletal filaments from smallest to largest diameter?

Microfilaments, intermediate filaments, microtubules Signup and view all the answers

What is the primary function of the endoplasmic reticulum (ER) in a cell?

To produce and assemble proteins for secretion from the cell Signup and view all the answers

What is the role of organelles in maintaining homeostasis within a cell?

Organelles help to compartmentalize different chemical reactions, preventing interference Signup and view all the answers

Which of the following is NOT a function of the cytoskeleton in a cell?

Providing structural support to the cell Signup and view all the answers

How do different types of cells vary in their organelle composition?

The number and types of organelles in a cell depend on the cell's specific function Signup and view all the answers

What is the primary function of the centrosome in a cell?

To organize the microtubules of the cytoskeleton and facilitate cell division Signup and view all the answers

How do organelles cooperate to maintain homeostasis within a cell?

Organelles communicate with each other to coordinate their activities Signup and view all the answers

Which of the following statements about the cell is incorrect?

Cells can arise from non-living matter through abiogenesis. Signup and view all the answers

Which of the following is NOT a main part of a cell?

Endoplasmic reticulum Signup and view all the answers

What is the primary function of the plasma membrane?

To regulate the flow of materials into and out of the cell Signup and view all the answers

Which of the following statements about cell structure and function is correct?

Cell structure and function are intimately related. Signup and view all the answers

What is the main reason for the selectivity of the plasma membrane?

To establish and maintain the appropriate environment for normal cellular activities Signup and view all the answers

Which of the following statements about cell division is correct?

Cell division is a process by which one cell divides into two identical cells. Signup and view all the answers