Question
Which of the following organelles in specifically abundant in the cells of the adrenal gland that make steroid hormones? Lysosomes Golgi complex Rough endoplasmic reticulum Nucleolus Smooth endoplasmic reticulum
Solution
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(297 Votes)
Victor
Elite ยท Tutor for 8 years
Answer
The correct answer is **Smooth endoplasmic reticulum**.The smooth endoplasmic reticulum (SER) is the primary site of lipid synthesis, including steroid hormones. The adrenal gland produces hormones like cortisol, aldosterone, and androgens, all of which are steroids. Therefore, adrenal gland cells that produce these hormones have abundant SER to facilitate their production. Let's briefly look at why the other options are incorrect:* **Lysosomes:** These organelles contain enzymes for breaking down waste materials and cellular debris. They are not directly involved in steroid hormone synthesis.* **Golgi complex:** The Golgi complex processes, sorts, and packages proteins and lipids. While it plays a role in preparing some hormones for secretion, it's not the primary site of steroid hormone production.* **Rough endoplasmic reticulum:** The rough ER is studded with ribosomes and is primarily involved in protein synthesis. Steroid hormones are lipids, not proteins.* **Nucleolus:** The nucleolus is located within the nucleus and is responsible for ribosome production. It's not involved in steroid hormone synthesis.