The function of mitochondria is
A) cellular respiration.
B) lipid synthesis.
C) photosynthesis.
D) intracellular digestion.
Answer: A
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Organize the sequence of structures through which sperm must pass upon ejaculation
1) urethra 2) ejaculatory duct 3) epididymis 4) vas deferens a. 3 ? 2 ? 1 ? 4 b. 3 ? 4 ? 2 ? 1 c. 2 ? 3 ? 4 ? 1 d. 2 ? 4 ? 3 ? 1 e. 4 ? 3 ? 2 ? 1
Which of the following would increase the electrochemical gradient across a membrane?
A) a sucrose-proton cotransporter B) a proton pump C) a potassium channel D) both a proton pump and a potassium channel
The study of succession and climax involves only plants and their adaptations.
a. true b. false
Which of the following statements about the endoplasmic reticulum (ER) is false?
(a) The ER is the major site for new membrane synthesis in the cell. (b) Proteins to be delivered to the ER lumen are synthesized on smooth ER. (c) Steroid hormones are synthesized on the smooth ER. (d) The ER membrane is contiguous with the outer nuclear membrane.