Regardless of the electron or hydrogen acceptor used, one of the products of fermentation is always
A. alcohol.
B. ADP.
C. pyruvate.
D. ATP.
E. NAD+.
Answer: E
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You find a cell of a type you have never seen before. The cell has both a nucleus and a cell wall. Therefore, you conclude that it must be a __________ cell.
A. prokaryotic B. animal C. bacterial D. plant
Prokaryotes
A. lack a true nucleus. B. lack true DNA. C. use the cell membrane rather than ribosomes for making proteins. D. contain numerous organelles. E. are relatively benign cells incapable of harming organisms.
Cerebrospinal fluid is found in the ________.
A. arachnoid mater B. pia mater C. subarachnoid space D. dura mater E. All of the choices are correct.
Growing useful mutants that develop from callus culture is called
a. fragmentation. b. protoplast fusion. c. somaclonal section. d. grafting. e. apomixis.