BI-1822

Hormones

Biology · Secondary 4 · Hard · Hormones

Nicotine molecules have a diameter of

2.0\times10^{-2}\,\mu\text{m}

and a certain hormone molecule has a diameter of

5.0\times10^{-3}\,\mu\text{m}

. Which statement about their sizes is correct?

Nicotine molecules are 4 times larger in diameter than the hormone molecules.
Nicotine molecules are 0.25 times the diameter of the hormone molecules.
Both have the same diameter.
Hormone molecules are 4 times larger in diameter than nicotine molecules.

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