Acetylcholine exocytosed from the presynaptic cell travels to the postsynaptic cell to start the action potential in the postsynaptic cell.
a. true
b. false
Ans: a. true
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Which of the following perceptions of taste is incorrect?
a. Bitter - elicited by simple sugars b. Sweet - elicited by glucose c. Sour - elicited by acids d. Salty - elicited by sodium chlorides e. Umami - elicited by glutamate
Some bacteria have membranes around their
DNA. What is lacking in these membranes that we do not call them nuclei?
a. pores b. proteins c. phospholipids d. a bilayer construction e. more than one of these is lacking
The ________ law of thermodynamics states that physical and chemical processes occur in such a way that randomness (disorder) increases to a maximum.
A. first B. fourth C. third D. second
____ is the study of body plans and structures
among groups of organisms. a. Embryology b. Molecular archeology c. Evolution d. Comparative morphology e. Composition