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 Chemical Bonding

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Introduction to Chemical Bonding

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Multiple Choice

Which of these lipoproteins has the highest percentage of cholesterol?

Chylomicrons

Very low-density lipoprotein (VLDL)

High-density lipoprotein (HDL)

Low-density lipoprotein (LDL)

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Verified step by step guidance

Understand the role of lipoproteins: Lipoproteins are complexes that transport lipids, including cholesterol, through the bloodstream. Each type of lipoprotein has a different composition and function.

Identify the types of lipoproteins: The main types are chylomicrons, VLDL (Very Low-Density Lipoprotein), LDL (Low-Density Lipoprotein), and HDL (High-Density Lipoprotein). Each has varying amounts of cholesterol, triglycerides, and proteins.

Analyze the composition of each lipoprotein: Chylomicrons primarily carry triglycerides from the intestines to other tissues. VLDL also carries triglycerides but has more cholesterol than chylomicrons. HDL is known for carrying cholesterol away from tissues to the liver for excretion.

Focus on LDL: LDL is often referred to as 'bad cholesterol' because it carries cholesterol to tissues, including arteries, which can lead to plaque buildup. LDL has the highest percentage of cholesterol compared to other lipoproteins.

Conclude with LDL's role: LDL's high cholesterol content makes it crucial in understanding cardiovascular health, as excessive LDL can lead to atherosclerosis. This is why LDL is identified as having the highest percentage of cholesterol among the lipoproteins listed.