Please someone help me? Number 12 Number 19Number 16

Biology

1 answer:

DIA [1.3K]3 years ago

6 0

Answer:

12) When a solid dissolves the solid (solute) and the liquid (solvent) form a very close intimate mixture called a solution

16) In other words, plasma membranes are selectively permeable—they allow some substances through but not others. ... The most direct forms of membrane transport are passive. Passive transport is a naturally occurring phenomenon and does not require the cell to expend energy to accomplish the movement.

19) To move substances against a concentration or electrochemical gradient, the cell must utilize energy in the form of ATP during active transport. Primary active transport, which is directly dependent on ATP, moves ions across a membrane and creates a difference in charge across that membrane.

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dsp73

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So, the answer is picture C

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Explanation:

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3 years ago

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Answer:

The answer is A.

Explanation:

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Please someone help me? Number 12 Number 19Number 16 ​

Please someone help me? Number 12 Number 19Number 16