Which membrane component is most important for allowing large, charged molecules to pass through the membrane?
A. peripheral proteins
B. cholesterol
C. glycosylated lipids
D. transmembrane proteins
E. carbohydrate channels
D. transmembrane proteins
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Marine biologists tagged and released 50 marlin. Later, fishermen caught 300 marlin, 15 of which had
tags. What is the estimate for the number of marlin in the population?
a. 5,000 b. 315 c. 365 d. 2,500 e. 1,000
Meiosis typically results in the production of
A) four diploid cells. B) two diploid cells. C) four haploid cells. D) two haploid cells. E) one triploid cell.
Chemicals that play the dominant role in protecting plants from being eaten by herbivores or predators are called
A. secondary compounds. B. poisons. C. amino acids. D. oils. E. primary compounds.
Virion size ranges from ________.
A. 10-400 nm B. 1,000-10,000 nm C. 1-40 nm D. 600-1,000 nm