A toxin that inhibits the production of GTP would interfere with the function of a signal transduction pathway that is initiated by the binding of a signal molecule to _____ receptors.

-G-protein-linked
-ion-channel
-intracellular
-steroid
-receptor tyrosine kinase


G-protein linked

Biology & Microbiology

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From the standpoint of the microorganism, in glycolysis the crucial product is

A) ATP; the fermentation products are waste products. B) ethanol or lactate; ATP is a waste product. C) CO2; ATP is a waste product. D) not relevant because glycolysis is not a major pathway.

Biology & Microbiology

Which of the following is the most important natural auxin?

a. abscisic acid b. gibberellic acid c. jasmonic acid d. indoleacetic acid e. salicylic acid

Biology & Microbiology

The type of skeleton that is usually composed of either a calcium-containing shell or chitin is a(n)

A. endoskeleton. B. exoskeleton. C. hydrostatic skeleton. D. gastrovascular cavity. E. vascular canal.

Biology & Microbiology

After falling down a flight of stairs, it feels like you broke your ankle; however the emergency room doctor says you tore a ligament. This means you tore the

A) connective tissue band that attaches muscle to bone. B) the cartilage in your ankle joint. C) insertion of a muscle. D) connective tissue band that joins two bones. E) delicate membrane that covers the surface of the bone.

Biology & Microbiology