Which of the following would be in abundance in the intestines where you need to increase surface area for absorption?
flagella
cilia
microvilli
spindle fibers
The Correct Answer is C
A. flagella: Flagella are for cell movement (e.g., sperm), not absorption.
B. cilia: Cilia move fluid or particles across cell surfaces (e.g., respiratory tract), not primarily for absorption.
C. microvilli: Microvilli are tiny projections on intestinal cells that increase surface area for nutrient absorption.
D. spindle fibers: Spindle fibers are used during cell division (mitosis), not absorption.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. fluid: The cytosol is the fluid portion of the cytoplasm.
B. cytoplasmic inclusions: These include stored nutrients or pigments suspended in the cytosol (e.g., glycogen granules).
C. cytoskeletal elements: Elements like microfilaments and microtubules are found in cytosol and support cell shape and movement.
D. the nucleus: The nucleus is a separate organelle, surrounded by its own membrane, and is not part of the cytosol.
Correct Answer is D
Explanation
A. monosaccharides: Monosaccharides are the building blocks of carbohydrates, not lipids.
B. a glycerol plus three glycogen chains: Glycogen is a polysaccharide, not a component of triglycerides.
C. a glycerol plus three amino acid chains: Amino acids form proteins, not triglycerides.
D. a glycerol plus three fatty acid chains: A triglyceride is made of one glycerol molecule and three fatty acids-this is the primary structure of fats.
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