What type of receptor is not an enzyme, but is directly associated with an enzyme that can hydrolyze GTP?

A. Steroid hormone receptor
B. Enzymatic receptor
C. Channel-linked receptor
D. G protein-coupled receptor


Answer: D

Biology & Microbiology

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A milkweed plant discourages consumption by herbivores by

a. exuding a toxic sap. b. developing an appearance that mimics an undesirable plant. c. having hairy leaves. d. producing an undesirable scent. e. having thorns.

Biology & Microbiology

An ALDH2 allele results in slow alcohol metabolism, leading to an accumulation of acetaldehyde. Therefore,

individuals with this allele tend to _____. a. consume more alcohol than typical social drinkers b. be protected against alcoholism c. become alcoholics at high rates d. contain other alleles that protect against alcoholism e. have parents who are alcoholics

Biology & Microbiology

What are animals trapped and digested by "carnivorous" plants such as the cobra lily used as?

a. primarily as an energy supplement during winter months b. primarily as a carbon source for the plant c. primarily as a nutrient supplement in nutrient-deficient environments d. primarily as food for bacteria and fungi that grow symbiotically with the plant roots

Biology & Microbiology

True or False: Endotoxins are the secreted products of living cells, whereas exotoxins are cell bound and released in large amounts ONLY when the cells lyse

a. TRUE b. FALSE

Biology & Microbiology