BIOS 150 Week 4 Quiz Exam 1 (Latest Update 2025 / 2026) Anatomy and Physiology IV with Lab | Questions & Answers | 100% Correct | Grade A - Chamberlain

BIOS 150 Week 4 Quiz Exam 1 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. What is the primary function of the cell membrane?

A. Protein synthesis
B. Energy production
C. Selective permeability
D. DNA storage
Correct Answer: C. Selective permeability
Rationale: The cell membrane controls what enters and leaves the
cell.

2. Which organelle is known as the powerhouse of the cell?

A. Nucleus
B. Ribosome
C. Mitochondria
D. Golgi apparatus
Correct Answer: C. Mitochondria
Rationale: Mitochondria produce ATP through cellular respiration.

,3. What type of transport requires energy?

A. Diffusion
B. Osmosis
C. Facilitated diffusion
D. Active transport
Correct Answer: D. Active transport
Rationale: Active transport uses ATP to move substances against a
gradient.

4. Which molecule stores genetic information?

A. RNA
B. Protein
C. Lipid
D. DNA
Correct Answer: D. DNA
Rationale: DNA contains hereditary information.

5. What is the basic unit of life?

A. Tissue
B. Organ
C. Cell
D. Atom
Correct Answer: C. Cell
Rationale: The cell is the smallest structure capable of life.

, 6. Which structure controls cell activities?

A. Cytoplasm
B. Nucleus
C. Ribosome
D. Cell wall
Correct Answer: B. Nucleus
Rationale: The nucleus contains DNA and regulates cell functions.

7. Osmosis is the movement of:

A. Solutes
B. Ions
C. Water
D. Proteins
Correct Answer: C. Water
Rationale: Osmosis is diffusion of water across a semi-permeable
membrane.

8. Which organelle modifies and packages proteins?

A. Lysosome
B. Golgi apparatus
C. Nucleus
D. Vacuole
Correct Answer: B. Golgi apparatus
Rationale: Golgi processes and ships proteins.