Macrophages are cells that engulf and digest bacteria and cell debris. To perform the digestive function, macrophages tend to have more ________ than other cells.
A. peroxisomes
B. endosomes
C. ribosomes
D. lysosomes
E. mitochondria
Answer: D
Anatomy & Physiology
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Which of the following is not part of the conduction system of the heart?
A) AV node B) bundle of His C) AV valve D) SA node
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Segmental contractions are mixing contractions that occur predominantly in the ________.
A. large intestine B. small intestine C. stomach D. esophagus E. oral cavity
Anatomy & Physiology
Free energy is ________ when exergonic reactions proceed.
A. increased B. made available C. decreased D. unchanged
Anatomy & Physiology
Centromeres divide in
A. mitosis and meiosis I. B. mitosis and meiosis II. C. meiosis II only. D. meiosis I and meiosis II. E. mitosis, meiosis I and meiosis II.
Anatomy & Physiology