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BIOS 256 MIDTERM EXAM ACTUAL QUESTIONS AND
CORRECT ANSWERS GRADED A+
BIOS 256 Midterm Exam 1 (Latest Update
2026) Anatomy and Physiology IV with Lab
| Questions & Answers | 100% Correct |
Grade A – Chamberlain
1. Which macromolecule is the primary source of energy?
r. r. r. r. r. r. r.
A. Protein
r.
B. Lipid
r.
C. Carbohydrate
r.
D. Nucleic acid
r. r.
Correct Answer: C
r. r.
Rationale: Carbohydrates are the main energy source for cells.
r. r. r. r. r. r. r. r.
2. Which macromolecule stores genetic information?
r. r. r. r. r.
A. Protein
r.
B. Lipid
r.
C. Carbohydrate
r.
D. Nucleic acid
r. r.
Correct Answer: D
r. r.
Rationale: DNA and RNA store and transmit genetic info.
r. r. r. r. r. r. r. r.
3. Which macromolecule forms enzymes?
r. r. r. r.
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A. Carbohydrate
r.
B. Lipid
r.
C. Protein
r.
D. Nucleic acid
r. r.
Correct Answer: C
r. r.
Rationale: Proteins function as enzymes.
r. r. r. r.
4. Which macromolecule makes up cell membranes?
r. r. r. r. r. r.
A. Carbohydrate
r.
B. Lipid
r.
C. Protein
r.
D. Nucleic acid
r. r.
Correct Answer: B
r. r.
Rationale: Lipids form the phospholipid bilayer.
r. r. r. r. r.
5. What is the basic unit of life?
r. r. r. r. r. r. r.
A. Atom
r.
B. Cell
r.
C. Molecule
r.
D. Tissue
r.
Correct Answer: B
r. r.
Rationale: Cell is the fundamental structural and functional unit.
r. r. r. r. r. r. r. r.
6. Which organelle produces ATP?
r. r. r. r.
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A. Nucleus
r.
B. Mitochondria
r.
C. Ribosome
r.
D. Golgi apparatus
r. r.
Correct Answer: B
r. r.
Rationale: Mitochondria are the powerhouses of the cell.
r. r. r. r. r. r. r.
7. Which organelle synthesizes proteins?
r. r. r. r.
A. Ribosome
r.
B. Mitochondria
r.
C. Lysosome
r.
D. Nucleus
r.
Correct Answer: A
r. r.
Rationale: Ribosomes translate mRNA into proteins.
r. r. r. r. r.
8. Which organelle packages proteins for secretion?
r. r. r. r. r. r.
A. Ribosome
r.
B. Golgi apparatus
r. r.
C. Lysosome
r.
D. Mitochondria
r.
Correct Answer: B
r. r.
Rationale: Golgi apparatus modifies and packages proteins.
r. r. r. r. r. r.
9. Which organelle digests cellular waste?
r. r. r. r. r.
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A. Lysosome
r.
B. Ribosome
r.
C. Golgi apparatus
r. r.
D. Nucleus
r.
Correct Answer: A r. r.
Rationale: Lysosomes contain digestive enzymes.
r. r. r. r.
10. Which organelle contains DNA?
r. r. r. r.
A. Mitochondria
r.
B. Nucleus
r.
C. Ribosome
r.
D. Golgi apparatus
r. r.
Correct Answer: B r. r.
Rationale: Nucleus stores genetic material.
r. r. r. r.
11. Which type of transport requires energy?
r. r. r. r. r. r.
A. Diffusion
r.
B. Osmosis
r.
C. Active transport
r. r.
D. Facilitated diffusion
r. r.
Correct Answer: C r. r.
Rationale: Active transport moves molecules against the gradient
r. r. r. r. r. r. r.
using ATP.
r. r.
12. Which process moves molecules down the concentration
r. r. r. r. r. r. r.
gradient?
r.
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Distribution of this document is illegal extra per year?
BIOS 256 MIDTERM EXAM ACTUAL QUESTIONS AND
CORRECT ANSWERS GRADED A+
BIOS 256 Midterm Exam 1 (Latest Update
2026) Anatomy and Physiology IV with Lab
| Questions & Answers | 100% Correct |
Grade A – Chamberlain
1. Which macromolecule is the primary source of energy?
r. r. r. r. r. r. r.
A. Protein
r.
B. Lipid
r.
C. Carbohydrate
r.
D. Nucleic acid
r. r.
Correct Answer: C
r. r.
Rationale: Carbohydrates are the main energy source for cells.
r. r. r. r. r. r. r. r.
2. Which macromolecule stores genetic information?
r. r. r. r. r.
A. Protein
r.
B. Lipid
r.
C. Carbohydrate
r.
D. Nucleic acid
r. r.
Correct Answer: D
r. r.
Rationale: DNA and RNA store and transmit genetic info.
r. r. r. r. r. r. r. r.
3. Which macromolecule forms enzymes?
r. r. r. r.
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A. Carbohydrate
r.
B. Lipid
r.
C. Protein
r.
D. Nucleic acid
r. r.
Correct Answer: C
r. r.
Rationale: Proteins function as enzymes.
r. r. r. r.
4. Which macromolecule makes up cell membranes?
r. r. r. r. r. r.
A. Carbohydrate
r.
B. Lipid
r.
C. Protein
r.
D. Nucleic acid
r. r.
Correct Answer: B
r. r.
Rationale: Lipids form the phospholipid bilayer.
r. r. r. r. r.
5. What is the basic unit of life?
r. r. r. r. r. r. r.
A. Atom
r.
B. Cell
r.
C. Molecule
r.
D. Tissue
r.
Correct Answer: B
r. r.
Rationale: Cell is the fundamental structural and functional unit.
r. r. r. r. r. r. r. r.
6. Which organelle produces ATP?
r. r. r. r.
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A. Nucleus
r.
B. Mitochondria
r.
C. Ribosome
r.
D. Golgi apparatus
r. r.
Correct Answer: B
r. r.
Rationale: Mitochondria are the powerhouses of the cell.
r. r. r. r. r. r. r.
7. Which organelle synthesizes proteins?
r. r. r. r.
A. Ribosome
r.
B. Mitochondria
r.
C. Lysosome
r.
D. Nucleus
r.
Correct Answer: A
r. r.
Rationale: Ribosomes translate mRNA into proteins.
r. r. r. r. r.
8. Which organelle packages proteins for secretion?
r. r. r. r. r. r.
A. Ribosome
r.
B. Golgi apparatus
r. r.
C. Lysosome
r.
D. Mitochondria
r.
Correct Answer: B
r. r.
Rationale: Golgi apparatus modifies and packages proteins.
r. r. r. r. r. r.
9. Which organelle digests cellular waste?
r. r. r. r. r.
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A. Lysosome
r.
B. Ribosome
r.
C. Golgi apparatus
r. r.
D. Nucleus
r.
Correct Answer: A r. r.
Rationale: Lysosomes contain digestive enzymes.
r. r. r. r.
10. Which organelle contains DNA?
r. r. r. r.
A. Mitochondria
r.
B. Nucleus
r.
C. Ribosome
r.
D. Golgi apparatus
r. r.
Correct Answer: B r. r.
Rationale: Nucleus stores genetic material.
r. r. r. r.
11. Which type of transport requires energy?
r. r. r. r. r. r.
A. Diffusion
r.
B. Osmosis
r.
C. Active transport
r. r.
D. Facilitated diffusion
r. r.
Correct Answer: C r. r.
Rationale: Active transport moves molecules against the gradient
r. r. r. r. r. r. r.
using ATP.
r. r.
12. Which process moves molecules down the concentration
r. r. r. r. r. r. r.
gradient?
r.
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Distribution of this document is illegal extra per year?
