Chemistry D211 Lecture 8: Steroids

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What is the common carbon skeleton arrangement found in all steroids?

Three cyclohexane rings and one cyclopentane ring (correct)

Four cyclohexane rings and one cyclopentane ring

Three cyclohexane rings and two cyclopentane rings

Two cyclohexane rings and three cyclopentane rings

What is the name of the simplest steroid and the nucleus of all steroids?

Gonane

Cyclopentanophenanthrene

Steran

All of the above (correct)

What is a common characteristic of all steroids, both natural and synthetic?

They are only used for bodybuilding and contraception

They have the same basic structure with small differences in the composition and position of the side chains (correct)

They are not derived from cholesterol

They have identical physiological functions

Which of the following is NOT a type of synthetic steroid?

Antibiotic steroids Signup and view all the answers

What is the parent molecule of all steroid hormones?

Cholesterol Signup and view all the answers

What is the significance of the numbering of carbon atoms in the steroid nucleus?

It begins in ring A Signup and view all the answers

What is the characteristic of steroids that illustrates the relationship of form and function?

Their family of compounds Signup and view all the answers

What is responsible for the variation in physiological function among steroids?

The presence of extra carbon atoms or functional groups at critical positions on the rings Signup and view all the answers

What is the difference between estradiol and testosterone?

The difference in one of the rings Signup and view all the answers

What is the function of naturally occurring steroids in the body?

To help organs, tissues, and cells do their job Signup and view all the answers

What is a use of synthetic steroids?

Drugs for birth control, asthma, and abortion Signup and view all the answers

What is the shape of the steroid nucleus?

Three-dimensional Signup and view all the answers

What is the primary function of corticosteroids in the body?

To regulate inflammation and immune response Signup and view all the answers

What is the medical condition in which corticosteroids are often used to treat symptoms?

All of the above Signup and view all the answers

What is the effect of anabolic steroids on the body?

They increase body weight, bone density, and muscular mass Signup and view all the answers

What is another name for anabolic-androgenic steroids?

All of the above Signup and view all the answers

What is the function of the 'anabolic' component of anabolic-androgenic steroids?

To build body tissue Signup and view all the answers

What is a common side effect of anabolic steroids?

Fluid retention Signup and view all the answers

What is the primary function of anabolic-androgenic steroids?

To develop male characteristics Signup and view all the answers

What is the main reason doctors prescribe anabolic-androgenic steroids?

To treat serious medical conditions such as low testosterone level Signup and view all the answers

Why do people use steroids illegally?

To increase muscular size and strength, and to get an edge over the competition Signup and view all the answers

What is the risk of illegally purchased steroids?

They are 10-15% counterfeit Signup and view all the answers

What is the penalty for buying, selling, or possessing steroids without a doctor's prescription?

5 months to 6 years in jail Signup and view all the answers

What is the typical dose of steroids taken by athletes?

10-40 times higher than prescription doses Signup and view all the answers

What is the recommended daily calorie distribution for an athlete?

60–70% carbohydrates, 20% protein, 10% fat Signup and view all the answers

How many servings of dairy products are recommended for an athlete?

2 servings Signup and view all the answers

What is the recommended daily intake of carbohydrates for an athlete?

7.7–10 g per kg of body weight Signup and view all the answers

How many grams of protein per kilogram of body weight are recommended for athletes building strength?

1.5–2 g per kg of body weight Signup and view all the answers

What is the recommended timing for eating a snack with both protein and carbohydrates after exercise?

30–60 minutes after exercise Signup and view all the answers

What is the recommended daily calorie intake for young athletes trying to build strength?

An extra 500 calories per day Signup and view all the answers