Callie Wolfe

Biology

10 February, 00:51

10. The diagram below illustrates the release of

chemical A from a human cell in response to a

specific stimulus.

Stimulus

Humari cell

- Chemical A

Source: Biology 8th ed., Pearson 2008, p-859.

Which cell structure plays a direct role in the release

of this chemical from the cell?

(1) nucleus

(2) ribosome

(3) chloroplast

(4) cell membrane