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 of the following lists ranks these molecules in the correct order by size from smallest to largest?

Water, sucrose, glucose, protein

Protein, water, glucose, sucrose

Water, protein, sucrose, glucose

Glucose, water, sucrose, protein

Water, glucose, sucrose, protein

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Verified step by step guidance

Understand the molecular structure and size of each molecule: Water (H₂O) is a simple molecule with a small molecular weight. Glucose (C₆H₁₂O₆) is a monosaccharide, larger than water. Sucrose (C₁₂H₂₂O₁₁) is a disaccharide, larger than glucose. Proteins are large macromolecules composed of amino acids, significantly larger than the other molecules listed.

Compare the molecular weights: Water has a molecular weight of approximately 18 g/mol. Glucose has a molecular weight of approximately 180 g/mol. Sucrose has a molecular weight of approximately 342 g/mol. Proteins vary greatly in size but are generally much larger than the other molecules.

Rank the molecules based on their molecular weights from smallest to largest: Water < Glucose < Sucrose < Protein.

Consider the complexity of the molecules: Water is a simple molecule, glucose is a single sugar unit, sucrose is composed of two sugar units, and proteins are complex chains of amino acids.

Verify the correct order: The correct ranking by size from smallest to largest is Water, Glucose, Sucrose, Protein.