Nokea
The main structural molecule of the plasma membrane is:
- A. carbohydrates
- B. cholesterol
- C. proteins
- D. phospholipids
Correct Answer: D
Rationale: Phospholipids form the bilayer, the primary structural component of the plasma membrane.
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Which vessel is not an end artery?
- A. renal artery
- B. retinal artery
- C. pulmonary artery
- D. intercostal artery
Correct Answer: D
Rationale: Intercostal arteries are not end arteries as they anastomose.
What is the primary function of stratified squamous epithelial tissue in the skin?
- A. Secretion
- B. Rapid diffusion
- C. Protection against mechanical and chemical stresses
- D. Stretch and recoil
Correct Answer: C
Rationale: Stratified squamous epithelium protects against mechanical and chemical damage.
The spindle fibers form between the centrioles during of mitosis.
- A. prophase
- B. anaphase
- C. telophase
- D. metaphase
Correct Answer: A
Rationale: Spindle fibers form in prophase as centrioles move apart.
Identify the type of muscle tissue that is formed from multinucleated, cylindrical cells.
- A. skeletal muscle
- B. smooth muscle
- C. cardiac muscle
Correct Answer: A
Rationale: Skeletal muscle cells are long, cylindrical, and multinucleated.
Meristematic tissues in plants are
- A. localized and permanent
- B. not limited to certain regions
- C. localized and dividing cells
- D. growing in volume
Correct Answer: C
Rationale: Meristematic tissues are group of living cells which are present in the plant body and divide to form new cells.