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

Lipids

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Lipids

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Multiple Choice

Lipids differ from other large biological molecules in that they __________.

are much larger

do not have specific shapes

do not contain carbon

do not contain nitrogen and phosphorus atoms

are not truly polymers

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Verified step by step guidance

Understand the definition of lipids: Lipids are a group of biological molecules that include fats, oils, waxes, and certain vitamins. They are hydrophobic or amphipathic molecules, meaning they do not mix well with water.

Recognize the structure of lipids: Unlike proteins, carbohydrates, and nucleic acids, lipids do not form long chains of repeating units. They are composed of smaller units like fatty acids and glycerol, but these units do not connect in a repetitive pattern to form polymers.

Identify the characteristics of polymers: Polymers are large molecules made up of repeating subunits called monomers. Examples include proteins (made of amino acids), carbohydrates (made of monosaccharides), and nucleic acids (made of nucleotides).

Compare lipids to other biological molecules: While proteins, carbohydrates, and nucleic acids are true polymers, lipids are not. This is because lipids do not consist of repeating monomer units linked together in a chain.

Conclude why lipids are not considered polymers: Lipids are not truly polymers because they do not have a repetitive structure of monomers. Instead, they are formed from a combination of different types of molecules, such as fatty acids and glycerol, which do not create a polymer chain.