TEST BANK for Keltner’s Psychiatric Nursing, 9th
Edition by Debbie Steele
Exam
1. Which organelle is known as the powerhouse of the cell?
A) Nucleus
B) Ribosome
C) Mitochondria
D) Golgi apparatus
Answer: C
Rationale: Mitochondria produce ATP through cellular respiration.
2. What is the primary function of red blood cells?
A) Fight infection
B) Carry oxygen
C) Clot blood
D) Produce antibodies
Answer: B
Rationale: Hemoglobin in red blood cells binds oxygen.
3. Which process converts glucose into pyruvate?
A) Krebs cycle
B) Electron transport chain
C) Glycolysis
D) Fermentation
Answer: C
Rationale: Glycolysis breaks down glucose into pyruvate in the cytoplasm.
4. Where does protein synthesis occur?
A) Nucleus
B) Ribosome
C) Lysosome
D) Smooth ER
Answer: B
Rationale: Ribosomes translate mRNA into proteins.
,5. Which blood type is the universal donor for red blood cells?
A) A positive
B) B negative
C) AB positive
D) O negative
Answer: D
Rationale: O negative lacks A, B, and Rh antigens, minimizing reaction risk.
6. What is the shape of DNA?
A) Single helix
B) Triple helix
C) Double helix
D) Circular
Answer: C
Rationale: DNA consists of two antiparallel strands wound together.
7. Which organ filters waste from blood to produce urine?
A) Liver
B) Kidneys
C) Lungs
D) Heart
Answer: B
Rationale: Nephrons in kidneys filter blood and produce urine.
8. What is the main product of photosynthesis?
A) Oxygen only
B) Glucose and oxygen
C) Carbon dioxide and water
D) ATP only
Answer: B
Rationale: Plants use sunlight, CO₂, and water to make glucose and release
oxygen.
9. Which part of the brain controls balance and coordination?
A) Cerebrum
B) Cerebellum
C) Brainstem
, D) Hypothalamus
Answer: B
Rationale: The cerebellum fine-tunes motor movements and balance.
10. What is the basic unit of heredity?
A) Chromosome
B) Nucleotide
C) Gene
D) Protein
Answer: C
Rationale: Genes are DNA segments coding for traits.
11. Which organelle contains digestive enzymes?
A) Peroxisome
B) Lysosome
C) Vacuole
D) Nucleolus
Answer: B
Rationale: Lysosomes break down waste and foreign particles.
12. What is the function of the pancreas in digestion?
A) Produces bile
B) Produces digestive enzymes and insulin
C) Absorbs water
D) Stores glucose
Answer: B
Rationale: Pancreas secretes enzymes into small intestine and insulin into blood.
13. Which vitamin is synthesized by the skin when exposed to sunlight?
A) Vitamin A
B) Vitamin C
C) Vitamin D
D) Vitamin E
Answer: C
Rationale: UV light converts cholesterol derivatives into vitamin D.
14. What is the name of the vessel that carries blood away from the heart?
A) Vein
Edition by Debbie Steele
Exam
1. Which organelle is known as the powerhouse of the cell?
A) Nucleus
B) Ribosome
C) Mitochondria
D) Golgi apparatus
Answer: C
Rationale: Mitochondria produce ATP through cellular respiration.
2. What is the primary function of red blood cells?
A) Fight infection
B) Carry oxygen
C) Clot blood
D) Produce antibodies
Answer: B
Rationale: Hemoglobin in red blood cells binds oxygen.
3. Which process converts glucose into pyruvate?
A) Krebs cycle
B) Electron transport chain
C) Glycolysis
D) Fermentation
Answer: C
Rationale: Glycolysis breaks down glucose into pyruvate in the cytoplasm.
4. Where does protein synthesis occur?
A) Nucleus
B) Ribosome
C) Lysosome
D) Smooth ER
Answer: B
Rationale: Ribosomes translate mRNA into proteins.
,5. Which blood type is the universal donor for red blood cells?
A) A positive
B) B negative
C) AB positive
D) O negative
Answer: D
Rationale: O negative lacks A, B, and Rh antigens, minimizing reaction risk.
6. What is the shape of DNA?
A) Single helix
B) Triple helix
C) Double helix
D) Circular
Answer: C
Rationale: DNA consists of two antiparallel strands wound together.
7. Which organ filters waste from blood to produce urine?
A) Liver
B) Kidneys
C) Lungs
D) Heart
Answer: B
Rationale: Nephrons in kidneys filter blood and produce urine.
8. What is the main product of photosynthesis?
A) Oxygen only
B) Glucose and oxygen
C) Carbon dioxide and water
D) ATP only
Answer: B
Rationale: Plants use sunlight, CO₂, and water to make glucose and release
oxygen.
9. Which part of the brain controls balance and coordination?
A) Cerebrum
B) Cerebellum
C) Brainstem
, D) Hypothalamus
Answer: B
Rationale: The cerebellum fine-tunes motor movements and balance.
10. What is the basic unit of heredity?
A) Chromosome
B) Nucleotide
C) Gene
D) Protein
Answer: C
Rationale: Genes are DNA segments coding for traits.
11. Which organelle contains digestive enzymes?
A) Peroxisome
B) Lysosome
C) Vacuole
D) Nucleolus
Answer: B
Rationale: Lysosomes break down waste and foreign particles.
12. What is the function of the pancreas in digestion?
A) Produces bile
B) Produces digestive enzymes and insulin
C) Absorbs water
D) Stores glucose
Answer: B
Rationale: Pancreas secretes enzymes into small intestine and insulin into blood.
13. Which vitamin is synthesized by the skin when exposed to sunlight?
A) Vitamin A
B) Vitamin C
C) Vitamin D
D) Vitamin E
Answer: C
Rationale: UV light converts cholesterol derivatives into vitamin D.
14. What is the name of the vessel that carries blood away from the heart?
A) Vein
