Steroids are
complex carbohydrates
lipids
a subclass of fats
a type of phospholipids

The right answer is lipids.

Steroids are an important category of lipids, present in the animal and plant kingdom (cholesterol, vitamins D, sex hormones: estrogen and progesterone, testosterone and androsterone ...).

The basic structure of steroids consists of a polycyclic alcohol consisting of three hexagonal rings and one pentagonal ring.

Used in medicine, the word "steroid" refers primarily to steroid hormones.

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1. b.

2. d.

3. a.

5. d.

6. c.

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