Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart3h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

2. Cell Chemistry & Cell Components

Proteins

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Proteins

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Multiple Choice

Which two functional groups are always found in amino acids?

Carbonyl and amino groups.

Carboxyl and amino groups.

Amino and sulfhydryl groups.

Hydroxyl and carboxyl groups.

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Verified step by step guidance

Understand the basic structure of an amino acid, which consists of a central carbon atom (alpha carbon) bonded to four different groups: an amino group, a carboxyl group, a hydrogen atom, and a variable R group (side chain).

Identify the amino group, which is a functional group consisting of a nitrogen atom bonded to two hydrogen atoms, represented as \(

NH

₂\). This group is always present in amino acids.

Recognize the carboxyl group, which is a functional group consisting of a carbon atom double-bonded to an oxygen atom and single-bonded to a hydroxyl group, represented as \(

COOH

\). This group is also always present in amino acids.

Compare the given options with the known structure of amino acids: Carbonyl and amino groups, Carboxyl and amino groups, Amino and sulfhydryl groups, Hydroxyl and carboxyl groups.

Determine that the correct answer is 'Carboxyl and amino groups' because these are the two functional groups that are consistently found in all amino acids.