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

Introduction to Biomolecules

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Biomolecules

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0:41 minutes

Problem 1

Textbook Question

Complete the following table to help you review the structures and functions of the four classes of organic molecules.

Verified step by step guidance

Identify the four classes of organic molecules: Carbohydrates, Lipids, Proteins, and Nucleic Acids.

For Carbohydrates: Fill in the function 'b' as 'Energy storage' and example 'c' as 'Cellulose'.

For Lipids: Fill in the example 'd' as 'Fats' and function 'e' as 'Cell membrane structure'.

For Proteins: Fill in the functions 'g' as 'Enzymes', 'h' as 'Structural support', 'j' as 'Catalysis', 'k' as 'Structural support', 'l' as 'Movement', 'm' as 'Defense', and 'n' as 'Storage'.

For Nucleic Acids: Fill in the function 'p' as 'Information storage' and example 'r' as 'Genes'.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Organic Molecules

Organic molecules are compounds primarily made of carbon atoms, often combined with hydrogen, oxygen, nitrogen, and other elements. They are essential for life and are categorized into four main classes: carbohydrates, lipids, proteins, and nucleic acids. Each class has distinct structures and functions that contribute to biological processes, such as energy storage, structural support, and genetic information.

Functions of Organic Molecules

Each class of organic molecules serves specific functions vital for living organisms. Carbohydrates provide energy and structural support, lipids are crucial for energy storage and forming cell membranes, proteins perform a wide range of functions including catalyzing reactions and providing structural support, and nucleic acids are responsible for heredity and protein synthesis. Understanding these functions helps in grasping how organisms utilize these molecules.

Examples of Organic Molecules

Examples of organic molecules illustrate their diverse roles in biology. For instance, carbohydrates include sugars like glucose and polysaccharides like starch, while lipids encompass fats and phospholipids. Proteins can be enzymes like lactase or structural proteins like collagen, and nucleic acids include DNA and RNA, which are essential for genetic information storage and transfer. Recognizing these examples aids in understanding the practical applications of each class.