Which process does not involve molecules moving across cell membranes?
A) osmosis
B) facilitated diffusion
C) active transport
D) hydrogenation
D
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Which of the following do yeast produce during fermentation?
A. Glucose. B. Pyruvate. C. Ethanol. D. Lactate. E. NADH.
Which ecosystem covers a large percentage of Earth’s surface and, despite having low productivity, contributes a high
percentage of total net primary productivity?
a. open ocean b. extreme desert, rock, sand, ice c. desert and thornwoods d. tropical deciduous forest e. temperate rainforest
In a hypersensitive response:a
long-lasting resistance is built up throughout the plant. b. the axillary buds break dormancy. c. cryptochrome is synthesized. d. jasmonic acid activates enzymes. e. the infected area is sealed off by necrotic lesions.
If a cell suddenly loses the ability to activate fatty acids by the attachment of a CoA molecule, what will be the most significant impact on the cell membrane?
A. phospholipids will no longer be synthesized in the ER B. cholesterol will no longer be made C. phospholipids will no longer flip between leaflets D. integral membrane proteins will dissociate from the membrane E. all phospholipid head groups will be identical