PCAT PCAT Cell Biology 2

Question 1

Which type of cell lacks a membrane-bound nucleus and membrane-enclosed organelles?

Accepted Answer

Prokaryotic cell

Answer

Eukaryotic cell

Answer

Animal cell

Answer

Plant cell

Question 2

What is the primary function of the Golgi apparatus?

Accepted Answer

Processing and packaging proteins for secretion or organelle delivery

Answer

Synthesizing proteins on ribosomes

Answer

Producing ATP through respiration

Answer

Replicating DNA before cell division

Question 3

Which transport process requires ATP to move molecules against their concentration gradient?

Accepted Answer

Active transport

Answer

Passive diffusion

Answer

Osmosis

Answer

Facilitated diffusion

Question 4

What is the primary function of the cytoskeleton?

Accepted Answer

Providing structural support and enabling cell movement

Answer

Producing cellular energy

Answer

Synthesizing proteins

Answer

Storing genetic information

Question 5

During which phase of mitosis do chromosomes align along the cell's equatorial plate?

Accepted Answer

Metaphase

Answer

Prophase

Answer

Anaphase

Answer

Telophase

Question 6

What term describes the aqueous, gel-like fluid of the cytoplasm that surrounds the organelles?

Accepted Answer

Cytosol

Answer

Nucleoplasm

Answer

Stroma

Answer

Matrix