Biology
Which one of the following vitamins is known as the anti sterile factor ?

Ascorbic acid
Riboflavin
Niacin
Retinol

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Biology
Which is not a function of the cell membrane?

Allows the cell to change shape under pressure
Helps control the movement of materials into and out of the cell
Helps substances pass from the cytoplasm into the nucleus
Keeps materials within the cell separated from the environment outside the cell

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