Coenzyme Q (also known as ubiquinone or CoQ) is often found in lotions and moisturizers. Given
what you know about its role in cellular respiration, infer what it might be doing in these products.
a. It helps glycolysis proceed faster in the cytosol of skin cells.
b. It absorbs dangerous free radicals (loose electrons) that can cause aging.
c. It decreases the rate of metabolism and slows cellular growth.
d. It is absorbed and used by cells with a high metabolism.
e. It causes older cells to spontaneously die and regenerates new cells.
B
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PRRs were FIRST observed in phagocytes in Drosophila (where they are called Toll receptors)
Indicate whether the statement is true or false.
Which statement concerning a scientific theory is FALSE?
a. It is unchangeable. b. It predicts new facts. c. It is based on a number of hypotheses. d. It may suggest practical applications. e. It is supported by many observations.
Based upon the age structure diagram, you expect the Indian population to
A. shrink. B. stay constant. C. grow and then stabilize D. grow exponentially.
Pollen grains are formed in ________ and ova are formed in ________.
A. receptacles; peduncles B. petals; corolla C. sepals; calyx D. stamens; carpels E. pistil; stamens