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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

Passive vs. Active Transport

Anatomy & Physiology

2. Cell Chemistry & Cell Components

Passive vs. Active Transport

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Problem L3.1c

Textbook Question

Write a single sentence, using no more than 25 words, to summarize each of the following cellular processes:
Primary active transport

Verified step by step guidance

Understand that primary active transport is a cellular process where energy from ATP is used to move molecules against their concentration gradient.

Identify the key components involved in primary active transport, such as the ATP molecule and transport proteins like pumps (e.g., sodium-potassium pump).

Recognize that this process is essential for maintaining cellular homeostasis, including ion balance and membrane potential.

Formulate a concise sentence summarizing the process, ensuring it includes the use of ATP, movement against the gradient, and its importance to the cell.

Review the sentence to ensure it is clear, accurate, and within the 25-word limit, emphasizing the core aspects of primary active transport.

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Key Concepts

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

Primary Active Transport

Primary active transport is a cellular process that uses ATP to move ions or molecules against their concentration gradient, establishing electrochemical gradients essential for cellular functions.

ATP (Adenosine Triphosphate)

ATP is the primary energy currency of the cell, providing the necessary energy for various biochemical reactions, including the active transport of substances across membranes.

Concentration Gradient

A concentration gradient refers to the difference in the concentration of a substance across a space, driving the movement of molecules from areas of high concentration to low concentration.