Which of the following is NOT a membrane lipid?
A) phospholipids
B) sphingolipids
C) cholesterol
D) All are membrane lipids.
D) All are membrane lipids.
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During inspiration,
a. intra-alveolar pressure falls below atmospheric pressure. b. the diaphragm contracts. c. the internal intercostal muscles contract. d. both (a) and (b) above. e. all of these answers.
Which describes sperm development in correct order?
A. Spermatid, primary spermatocyte, secondary spermatocyte, spermatogonium B. Sustentacular cell, spermatid, primary spermatocyte, spermatogonium C. Primary spermatocyte, secondary spermatocyte, spermatogonium, spermatid D. Spermatogonium, primary spermatocyte, secondary spermatocyte, spermatid
The cell membrane of a muscle cell is called ________
A) sarcolemma B) epimysium C) endomysium D) perimysium
Which of the following is the correct formula for vital capacity (VC)?
A. VC = VT + IRV + ERV B. VC = VT + IRV C. VC = VT + IRV + ERV + RV D. VC = ERV + RV