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Which is the largest organelle, responsible for cell reproduction and control of other organelles?
- A. Nucleus
- B. Ribosome
- C. Mitochondrion
- D. Golgi apparatus
Correct Answer: A
Rationale: The nucleus is the largest organelle within the cell.
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Which traits describe visceral muscles?
- A. Smooth and voluntary
- B. Smooth and involuntary
- C. Striated and voluntary
- D. Striated and involuntary
Correct Answer: B
Rationale: Visceral (smooth) muscles will not function at will; thus, they act involuntarily.
Which is the term for the passage of water containing dissolved materials through a membrane as the result of a greater mechanical force on one side?
- A. Metabolism
- B. Mitosis
- C. Filtration
- D. Osmosis
Correct Answer: C
Rationale: Filtration is the movement of water and particles through a membrane by a force from either pressure or gravity.
Which are passive transport mechanisms that move material across the cell membranes?
- A. Diffusion
- B. Evaporation
- C. Filtration
- D. Osmosis
- E. Mitosis
- F. Anaphase
Correct Answer: A,C,D
Rationale: The passive transport systems are diffusion,filtration and osmosis."
Which is the most complex structural level of organization of the body?
- A. Body as a whole
- B. Cellular
- C. Organs
- D. Chemical
Correct Answer: A
Rationale: The structural levels of organization progress from the least complex (chemical) through cells, tissues, organs, systems to the most complex (the body as a whole).
Telophase is which phase of cell reproduction during mitosis?
- A. First phase
- B. Latent phase
- C. Final phase
- D. Spindle phase
Correct Answer: C
Rationale: During this final phase of cell division, the two nuclei appear and the chromosomes disperse.