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Which of these substances moves across cell membranes by osmosis?
osmosis
water
cell membrane
The starch solution in the dialysis sac will turn blue-black; the iodine solution will not change.
Enzyme A--pH 3
Water
semi-permeable
Pepsin activity will slow down
Meat tenderizer is made with pepsin, an enzyme. If meat coated with tenderizer is placed in a refrigerator for a short time prior to cooking, how will the enzyme pepsin be affected?
osmosis
water
cell membrane
The starch solution in the dialysis sac will turn blue-black; the iodine solution will not change.
Enzyme A--pH 3
Water
semi-permeable
Pepsin activity will slow down
The structure most responsible for maintaining cell homeostasis is the
osmosis
water
cell membrane
The starch solution in the dialysis sac will turn blue-black; the iodine solution will not change.
Enzyme A--pH 3
Water
semi-permeable
Pepsin activity will slow down
The cell membrane will allow water, oxygen, carbon dioxide, and glucose to pass through. Because other substances are blocked from entering, the membrane is called
osmosis
water
cell membrane
The starch solution in the dialysis sac will turn blue-black; the iodine solution will not change.
Enzyme A--pH 3
Water
semi-permeable
Pepsin activity will slow down
Starch turns blue-black in the presence of iodine. If a dialysis sac with starch solution is permeable only to water and iodine and is placed in a beaker of iodine solution, what will the solutions in the beaker and the sac look like after two hours
osmosis
water
cell membrane
The starch solution in the dialysis sac will turn blue-black; the iodine solution will not change.
Enzyme A--pH 3
Water
semi-permeable
Pepsin activity will slow down
Which of these substances moves across cell membranes by osmosis?
osmosis
water
cell membrane
The starch solution in the dialysis sac will turn blue-black; the iodine solution will not change.
Enzyme A--pH 3
Water
semi-permeable
Pepsin activity will slow down
Starch turns blue-black in the presence of iodine. A selectively permeable dialysis sac containing a starch solution is placed into a beaker of iodine solution. The movement of water into the sac is called
osmosis
water
cell membrane
The starch solution in the dialysis sac will turn blue-black; the iodine solution will not change.
Enzyme A--pH 3
Water
semi-permeable
Pepsin activity will slow down
The human stomach has an acidic environment. Which enzyme with its optimal pH below most likely functions in the stomach?
osmosis
water
cell membrane
The starch solution in the dialysis sac will turn blue-black; the iodine solution will not change.
Enzyme A--pH 3
Water
semi-permeable
Pepsin activity will slow down
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