What is the function of stem cells in tissues?
Store calcium
Cause disease
Replace/repair damaged cells
Transmit impulses
The Correct Answer is C
A. Store calcium: Calcium storage is a function of bone (osteocytes/osteoblast activity) rather than a primary role of stem cells.
B. Cause disease: Stem cells do not inherently cause disease; they are undifferentiated cells capable of giving rise to specialised cell types (though malignant transformation is a separate process).
C. Replace/repair damaged cells: Stem cells can divide and differentiate to regenerate or replace damaged or lost cells within tissues.
D. Transmit impulses: Transmitting electrical impulses is a function of neurons (nervous tissue), not a primary role of stem cells.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Mitochondrion: Mitochondria generate most of the cell’s ATP via oxidative phosphorylation, serving as the primary energy-producing organelles.
B. Ribosome: Ribosomes assemble amino acids into proteins (translation), not energy production.
C. Golgi apparatus: The Golgi modifies, sorts, and packages proteins and lipids for transport, not chiefly for making energy.
D. Lysosome: Lysosomes contain digestive enzymes for breakdown of macromolecules and organelles, not energy generation.
Correct Answer is C
Explanation
A. Muscle tissue: Muscle tissue produces movement via contraction, but tendons, ligaments, and bone are not muscle tissue.
B. Epithelial tissue: Epithelial tissue lines surfaces and forms glands, not tendons, ligaments, or bone.
C. Connective tissue: Tendons and ligaments are dense connective tissue and bone is a specialized connective tissue that provides support and attachment.
D. Nervous tissue: Nervous tissue conducts impulses and does not form tendons, ligaments, or bone.
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