Which of the following describes meiosis as it takes place in the testes?
Spermatozoa
Spermiogenesis
Spermatogenesis
Spermatocytes
The Correct Answer is C
a. Spermatozoa: These are the mature male gametes (sperm cells) that result from spermatogenesis but do not describe the process of meiosis itself.
b. Spermiogenesis: This is the final stage of spermatogenesis, where spermatids undergo morphological changes to become mature spermatozoa.
c. Spermatogenesis: This is the process that includes both meiosis and subsequent maturation steps, resulting in the formation of spermatozoa. It involves the production of haploid sperm cells from diploid germ cells.
d. Spermatocytes: These are the cells that undergo meiosis during spermatogenesis. Primary spermatocytes undergo the first meiotic division to form secondary spermatocytes, which then undergo the second meiotic division to produce spermatids.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
a. Carrying oxygenated blood from the heart to the peripheral tissue: This describes the function of systemic arteries, not the pulmonary artery.
b. Carrying deoxygenated blood from the lungs to the heart: This describes the pulmonary veins, not the pulmonary artery.
c. Carrying oxygenated blood from the lungs to the left side of the heart: This describes the function of the pulmonary veins, not the pulmonary artery.
d. Carrying deoxygenated blood from the right side of the heart to the lungs: Correct. The pulmonary artery carries deoxygenated blood from the right ventricle of the heart to the lungs for oxygenation.
Correct Answer is A
Explanation
a. Exchanging of gas: Alveoli are the primary sites for gas exchange in the lungs, where oxygen is absorbed into the blood and carbon dioxide is expelled.
b. Removing pathogens that are breathed in: This is a function of the respiratory tract's immune components, like macrophages in the alveoli, but not the primary function.
c. Containing mucus-producing goblet cells: Goblet cells are found in the respiratory tract but not in the alveoli.
d. Secreting surfactant to reduce surface tension: Alveolar cells do secrete surfactant, which is crucial for reducing surface tension and preventing alveolar collapse, but the primary function is gas exchange.
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