The major function of bile is to ____
a. emulsify fats
b. digest fats
c. stimulate stomach secretions
d. inhibit stomach contractions
e. aid in amino acid absorption
ANSWER: a
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Which of the following is most directly responsible for driving ATP synthase and the production of ATP in cellular respiration?
A. The electron transport chain pumping H+ from the mitochondrial matrix into the intermembrane space. B. The flow of electrons down the electron transport chain. C. The loss in free energy that occurs as an electron moves down the transport chain. D. The H+ electrochemical gradient across the inner mitochondria membrane. E. The ability of oxygen to rapidly capture an electron and energize ATP synthase.
What type of life cycle is observed in plants and some algae?
a. alteration of generations b. alteration of species c. gametophyte and sporophyte generations d. zygotic life cycle e. gametic life cycle
Viruses that attack bacteria are called
A. lytic B. proviruses C. virulent D. phages
Because cell walls consist of a cross-linked network of long filaments embedded in a stiff surrounding material, they can be called __________.
-spongy bone -spot-welded sheets -plasma membranes -fiber composites