What structure shown in this cell would also be present in a bacterial cell?
A) cell membrane
B) nucleus
C) mitochondrion
D) chloroplast
Ans: A) cell membrane
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Matching. Choose the one most appropriate
answer for each. 1. ___ active site 2. ___ allosteric enzyme 3. ___ adenosine triphosphate 4. ___ NADP+ 5. ___ catalyst 6. ___ catalase 7. ___ entropy 8. ___ equilibrium 9. ___ feedback inhibition 10. ___ phosphorylation A. rate of forward reaction about equals rate of reverse reaction B. coenzyme that diffuses freely through the cytoplasm C. attachment of a phosphate group by a high-energy bond D. an excess of end-product molecules alters the shape of the first enzyme in the pathway and shuts off that metabolic pathway E. part of an enzyme that binds to the substrate F. by binding a regulatory molecule, it changes the activity of a metabolic pathway G. affects rates of chemical reactions H. universal energy currency I. assists in the detoxification of ethanol J. a measure of the degree of energy change after a concentrated form of energy has been dispersed
NAD contains the B vitamin niacin as part of its structure, whereas FAD contains another B vitamin, ________, as part of its structure
Fill in the blank with correct word.
Members of class Hirudinida are the leeches
____________________ Indicate whether the statement is true or false.
The energy that excites the photosystems is supplied by
A) electrons passing down the electron transport chain. B) ATP. C) photons. D) NADPH.