Nokea
The ___________ is the germ layer that differentiates into muscle tissue & connective tissue
- A. Endoderm
- B. Mesoderm
- C. Histology
- D. Pathologist
Correct Answer: B
Rationale: Mesoderm forms muscle and connective tissue.
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Reduction in the neutrophil granulocyte count may be
- A. Caused by drugs suppressing bone marrow activity.
- B. A consequence of tissue damage.
- C. Associated with painful throat ulcers.
- D. Associated with widespread purulent infections.
Correct Answer: A
Rationale: Bone marrow suppression (e.g., chemotherapy) reduces neutrophils, increasing infection risk.
Identify the types of fibers associated with connective tissue.
- A. Collagen, elastic and reticular
- B. Collagen, elastic and keratin
- C. Collagen, keratin and reticular
- D. Elastic, keratin and reticular
Correct Answer: A
Rationale: Connective tissue fibers are collagen (strength), elastic (stretch), and reticular (support).
Which of the following is NOT a type of cell?
- A. ribosome
- B. haemocytoblast
- C. neutrophil
- D. phagocyte
Correct Answer: A
Rationale: A ribosome is a cell organelle, not a cell type
What is the main function of proteins in the plasma membrane?
- A. make cellular energy
- B. contain cell contents
- C. make ribosomes
- D. transport through the membrane
Correct Answer: D
Rationale: Membrane proteins primarily facilitate transport of substances across the membrane.
Neutrophil granulocytes
- A. Are the most common leukocyte in normal blood.
- B. Contain proteolytic enzymes.
- C. Have a lifespan in the circulation of 3-4 weeks.
- D. Contain actin and myosin microfilaments.
Correct Answer: A
Rationale: Neutrophils are the most abundant WBCs (~60-70%), contain enzymes for phagocytosis, and have a short lifespan (~1-2 days).