Membrane proteins may function in
A) receiving extracellular signals.
B) amphipathic modification.
C) temperature control.
D) protein manufacture.
E) information storage.
Answer: A
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Diseases that can be transmitted from one person to another are termed
A. symptomatic. B. clinical. C. acute. D. latent. E. communicable.
Seedless vascular plants include all of the following EXCEPT
A. Psilotum-Pteridophytes. B. Sphagnum-Bryophyta. C. whisk ferns-Psilotophyta. D. horsetails-Sphenophyta.
The distribution of mitochondria between the daughter cells during cytokinesis
a. is random. b. is directed by the mitotic spindle. c. is directed by the centrioles. d. results in the mitochondria remaining in the parent cell. e. occurs only during meiosis.
Pinworm is a nematode parasite that lives in the human rectum, and causes itching in the anal area. What best explains the itching symptom?
A. Any kind of parasite will naturally irritate the skin. B. The itching is because of the mismatch between humans and the parasite's natural host. C. The itching induces the person to scratch, helping to spread the parasite to another person. D. The itching is a side-effect when the immune system has successfully attacked the nematode.