The significance of the cell membrane is that
A) the cell membrane holds the cellular contents.
B) the cell membrane regulates the direction and flow of substances into and out of the cell.
C) the cell membrane is the means for cell-to-cell communication.
D) All of these choices are correct.
Answer: D) All of these choices are correct.
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The preferred source of fuel for the fetus is _____.
A. glucose B. fatty acid C. protein D. cholesterol E. fiber
The most likely cause of toddler diarrhea is _____.
A. intake of vegetables B. excessive intake of fat C. consumption of eggs D. excessive intake of juices that contain sucrose or sorbitol E. switching from whole milk to low-fat milk
The human body typically absorbs less than 20% of the iron consumed in the diet
Indicate whether the statement is true or false
The glycemic index (GI) is a measurement of how a carbohydrate-containing food raises
A. liver glycogen. B. insulin released from the pancreas. C. blood glucose. D. glycogen stored in muscle.