Steroid hormones easily pass through the plasma membrane by simple diffusion because they

Are water soluble

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Contain carbon and hydrogen

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Enter through pores

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Are lipid soluble

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Solution

The correct option is D Are lipid soluble
Steroid hormones are derived from cholesterol and are lipid-soluble molecules, hence they can easily pass through the plasma membrane by simple diffusion.
On the other hand, water-soluble hormones require a receptor that can bind to them, before they are internalised.

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