Which is not a component of cytosol?
fluid
cytoplasmic inclusions
cytoskeletal elements
the nucleus
The Correct Answer is D
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Urinary – Includes kidney & bladder; removes wastes: The urinary system includes the kidneys and bladder, which remove nitrogenous waste and regulate water and electrolyte balance.
B. Endocrine – Includes the hormone-producing glands: The endocrine system includes pituitary, thyroid, adrenal glands, etc., involved in metabolism, growth, and reproduction.
C. Respiratory – Includes lungs, involved in gas exchange & pH balance: The lungs are central to the exchange of O₂ and CO₂, which also helps regulate blood pH.
D. Digestive – Includes blood vessels, transports nutrients and gases to organs and wastes (CO2) from organs: Blood vessels are primarily part of the circulatory system, not the digestive system. The digestive system includes the mouth, esophagus, stomach, intestines, liver, pancreas, etc., which process food and absorb nutrients-not gas transport.
Correct Answer is A
Explanation
A. cellulose: Humans lack the enzyme cellulase, so we cannot break down cellulose, a plant polysaccharide, for energy.
B. starch: Starch is digestible; humans have amylase to break it down into glucose.
C. glycogen: Glycogen is stored in human liver and muscle and is easily digested.
D. monosaccharides: These are already single sugar units, like glucose, and require no digestion.
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