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

Previous problemNext problem

Struggling with Anatomy & Physiology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following is correct about protein folding?

Protein folding is primarily determined by the sequence of nucleotides in DNA.

Protein folding is a reversible process that occurs in the cytoplasm only.

Protein folding is a spontaneous process driven by the hydrophobic effect.

Protein folding requires the input of energy in the form of ATP.

Previous problemNext problem

Verified step by step guidance

Understand that protein folding is the process by which a protein structure assumes its functional shape or conformation.

Recognize that the primary structure of a protein, which is its sequence of amino acids, is determined by the sequence of nucleotides in DNA. However, the folding itself is not directly determined by DNA but by the interactions between amino acids.

Acknowledge that protein folding is a spontaneous process, meaning it occurs naturally without the need for external energy input. This is primarily driven by the hydrophobic effect, where non-polar amino acid side chains tend to avoid water and aggregate in the interior of the protein.

Note that while protein folding can be reversible under certain conditions, it is not limited to occurring only in the cytoplasm. It can also occur in other cellular compartments, such as the endoplasmic reticulum.

Understand that while ATP is not required for the spontaneous folding of proteins, molecular chaperones, which assist in the folding process, may require ATP to function.