BIOS 255 FINAL EXAM 3 (Latest Update
) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A – Chamberlain
1. The basic structural unit of life is:
A. Atom
B. Molecule
C. Cell
D. Tissue
Correct Answer: C
Rationale: Cells are the fundamental unit of structure and function
in all living organisms.
2. Which macromolecule stores genetic information?
A. Protein
B. Carbohydrate
C. DNA
D. Lipid
Correct Answer: C
,Rationale: DNA carries hereditary information in the form of
genes.
3. Proteins are composed of:
A. Amino acids
B. Nucleotides
C. Fatty acids
D. Monosaccharides
Correct Answer: A
Rationale: Amino acids are linked by peptide bonds to form
proteins.
4. The primary function of enzymes is:
A. Store energy
B. Act as catalysts
C. Build DNA
D. Provide structure
Correct Answer: B
Rationale: Enzymes speed up chemical reactions without being
consumed.
5. ATP stands for:
A. Adenosine triphosphate
B. Adenine thymine phosphate
C. Adenosine diphosphate
,D. Active transport protein
Correct Answer: A
Rationale: ATP is the main energy currency of the cell.
6. Cellular respiration occurs in:
A. Nucleus
B. Cytoplasm only
C. Mitochondria
D. ER
Correct Answer: C
Rationale: Mitochondria generate ATP via aerobic respiration.
7. Glycolysis occurs in:
A. Cytoplasm
B. Mitochondria
C. Nucleus
D. Golgi apparatus
Correct Answer: A
Rationale: Glycolysis breaks down glucose into pyruvate in the
cytoplasm.
8. Krebs cycle occurs in:
A. Cytoplasm
B. Mitochondrial matrix
C. Nucleus
, D. Chloroplast
Correct Answer: B
Rationale: Pyruvate is further oxidized in the mitochondrial matrix.
9. Electron transport chain occurs in:
A. Inner mitochondrial membrane
B. Outer mitochondrial membrane
C. Cytoplasm
D. Nucleus
Correct Answer: A
Rationale: Electron carriers pass electrons to produce ATP via
oxidative phosphorylation.
10. Anaerobic respiration produces:
A. Oxygen
B. Lactic acid or ethanol
C. Glucose
D. ATP only
Correct Answer: B
Rationale: In the absence of oxygen, cells ferment pyruvate to
regenerate NAD+.
11. Photosynthesis occurs in:
A. Mitochondria
B. Chloroplast
) Anatomy and Physiology IV
with Lab | Questions & Answers | 100%
Correct | Grade A – Chamberlain
1. The basic structural unit of life is:
A. Atom
B. Molecule
C. Cell
D. Tissue
Correct Answer: C
Rationale: Cells are the fundamental unit of structure and function
in all living organisms.
2. Which macromolecule stores genetic information?
A. Protein
B. Carbohydrate
C. DNA
D. Lipid
Correct Answer: C
,Rationale: DNA carries hereditary information in the form of
genes.
3. Proteins are composed of:
A. Amino acids
B. Nucleotides
C. Fatty acids
D. Monosaccharides
Correct Answer: A
Rationale: Amino acids are linked by peptide bonds to form
proteins.
4. The primary function of enzymes is:
A. Store energy
B. Act as catalysts
C. Build DNA
D. Provide structure
Correct Answer: B
Rationale: Enzymes speed up chemical reactions without being
consumed.
5. ATP stands for:
A. Adenosine triphosphate
B. Adenine thymine phosphate
C. Adenosine diphosphate
,D. Active transport protein
Correct Answer: A
Rationale: ATP is the main energy currency of the cell.
6. Cellular respiration occurs in:
A. Nucleus
B. Cytoplasm only
C. Mitochondria
D. ER
Correct Answer: C
Rationale: Mitochondria generate ATP via aerobic respiration.
7. Glycolysis occurs in:
A. Cytoplasm
B. Mitochondria
C. Nucleus
D. Golgi apparatus
Correct Answer: A
Rationale: Glycolysis breaks down glucose into pyruvate in the
cytoplasm.
8. Krebs cycle occurs in:
A. Cytoplasm
B. Mitochondrial matrix
C. Nucleus
, D. Chloroplast
Correct Answer: B
Rationale: Pyruvate is further oxidized in the mitochondrial matrix.
9. Electron transport chain occurs in:
A. Inner mitochondrial membrane
B. Outer mitochondrial membrane
C. Cytoplasm
D. Nucleus
Correct Answer: A
Rationale: Electron carriers pass electrons to produce ATP via
oxidative phosphorylation.
10. Anaerobic respiration produces:
A. Oxygen
B. Lactic acid or ethanol
C. Glucose
D. ATP only
Correct Answer: B
Rationale: In the absence of oxygen, cells ferment pyruvate to
regenerate NAD+.
11. Photosynthesis occurs in:
A. Mitochondria
B. Chloroplast
