Which of the following behaviors is associated with a high risk of HIV transmission?
a. unprotected sex (no condom used)
b. hugging
c. casual kissing
d. sharing bathroom facilities
e. sharing food or water
ANSWER: a
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During the process of pyruvate oxidation, pyruvate is broken down and the remaining two carbons are
attached to Coenzyme A.
Indicate whether the statement is true or false.When an end product of a reaction is in excess and inhibits the first enzyme of the pathway, this is an example of positive feedback.
a. true b. false
Complete oxidation (breakdown) of glucose in aerobic respiration can yield a net output of _____ ATP.
A) 38 B) 45 C) 2 D) 6
Connective tissue is different from epithelial tissue in that connective tissue:
A) is not made up of cells. B) has cells that are usually separated and scattered in an extracellular material. C) has a structure called basement membrane. D) is found only in joints.