For which of the following organelles are the structure and function correctly described?
A) Ribosomesmembranous vesicles containing digestive enzymes
B) Golgi apparatusparticles, composed of protein and RNA, which synthesize
proteins
C) Mitochondrionnonmembranous structure that synthesizes proteins
D) Endoplasmic reticuluma network of interconnected membranes forming sacs and
canals that packages protein molecules for secretion
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Question 2) Melanocytes transfer melanin granules to
A) nearby keratinocytes. B) mast cells.
C) macrophages. D) the subcutaneous layer.
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Question 3) The anaerobic reactions of cellular respiration occur in the _____, whereas the aerobic
reactions of cellular respiration occur in the ______.
A) mitochondria without O2 required; mitochondria with O2 required
B) mitochondria with O2 required; cytoplasm with O2 required
C) cytoplasm without O2 required; mitochondria with O2 required
D) cytoplasm without O2 required; cytoplasm with CO2 required
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Question 4) Muscle cells with more than one nucleus are
A) smooth muscle cells only.
B) skeletal muscle cells only.
C) smooth muscle cells and skeletal muscle cells.
D) cardiac muscle cells and smooth muscle cells.
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Question 5) Ultrasonography is most useful for diagnostic examination of
A) soft internal structures, such as fetuses.
B) dense organs, such as bones.
C) air-filled organs, such as lungs.
D) microscopic structures.
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Question 6) All of the following are functions of bones except
A) to protect certain internal organs.
B) to store inorganic salts.
C) to provide a set point for the control of blood pressure and body temperature.
D) to provide a source for red and white blood cells.
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Question 7) A young man who ran 6 miles a day throughout high school is injured during his first
season running cross country in college, and must rest for three months, then gradually
begin exercising again.
The skeletal muscles in his lower limbs decrease in size during
this prolonged period of inactivity. The organelles that break down his muscle protein are
A) ribosomes. B) lysosomes. C) centrosomes. D) peroxisomes.
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Question 8) The subcutaneous layer is
A) part of the basement membrane.
B) between the epidermis and the dermis.
C) not part of the skin.
D) made of squamous epithelium.
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Question 9) In cellular respiration,
A) cells breathe, or take in, O2 and give off CO2.
B) energy is absorbed from glucose and is transferred to CO2.
C) mitochondria release glucose molecules.
D) energy is released from molecules and is transferred to other molecules.
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Question 10) Involuntary muscle tissues are
A) smooth muscle tissue and cardiac muscle tissue.
B) smooth muscle tissue, skeletal muscle tissue, and cardiac muscle tissue.
C) smooth muscle tissue and skeletal muscle tissue.
D) cardiac muscle tissue and skeletal muscle tissue.
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