Cell Structure and Compartments for Competitive Exams

Cell Structure and Compartments

Q. What is the function of the endoplasmic reticulum?

Solution

The endoplasmic reticulum is involved in the synthesis of lipids and proteins, with rough ER being studded with ribosomes for protein synthesis.

Correct Answer: B — Synthesis of lipids and proteins

Q. What is the primary function of the nucleus in a cell?

Solution

The nucleus stores the cell's genetic material (DNA) and is responsible for regulating gene expression.

Correct Answer: C — Genetic material storage

Q. What is the primary role of the plasma membrane?

Solution

The plasma membrane regulates the movement of substances into and out of the cell, maintaining homeostasis.

Correct Answer: B — Regulating what enters and exits the cell

Q. What is the role of lysosomes in a cell?

Solution

Lysosomes contain enzymes that digest macromolecules, old cell parts, and microorganisms.

Correct Answer: B — Digestion of macromolecules

Q. Which component of the cell membrane is primarily responsible for its fluidity?

Solution

Cholesterol molecules interspersed within the phospholipid bilayer help maintain membrane fluidity.

Correct Answer: D — Cholesterol

Q. Which structure is involved in the detoxification of harmful substances in the liver?

Solution

The smooth endoplasmic reticulum is involved in the detoxification of drugs and harmful substances in liver cells.

Correct Answer: A — Smooth endoplasmic reticulum

Q. Which structure is responsible for modifying and packaging proteins?

Solution

The Golgi apparatus modifies, sorts, and packages proteins for secretion or delivery to other organelles.

Correct Answer: B — Golgi apparatus

Showing 1 to 7 of 7 (1 Pages)