Question

QUESTION 1

______ embedded in the cell membrane can allow some materials through.

Carbohydrates

Fatty acids

Proteins

all of the above
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QUESTION 2

The cell membrane is considered

semi-permeable.

fully permeable.

porous.

all of the above
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QUESTION 3

One of the major functions of blood in animals is to maintain a(n) _______ internal environment.

isotonic

hypertonic

hypotonic

none of the above

Answer 1

1 is proteins

Answer 2

2 semi-permeable

Answer 3

3 isotonic

Answer 4

thanks