Unit 4B
Cellular transport
and energy
Textbooksections:
Chapters3.4,3.5,4.1,4.2,(4.3),4.4,(4.5),4.6
Homeostasis:28.2
EssentialQuestions:
1. How does the structure of the cell membrane relate to its function?
2. What will happen to a cell if the solution surrounding it is hypertonic? Hypotonic?
Isotonic?
3. How do active transport mechanisms differ from passive transport mechanisms?
4. What advantage do active transport mechanisms have over passive?
5. What would happen if a feedback mechanism regulating your body’s homeostasis were
to stop working?
6. How is light energy converted into chemical energy?
7. How are nutrients converted into energy to be used by the cell?
LearningGoals:
1. Describe the Fluid Mosaic Model
2. Describe how the structure of the plasma membrane allows it to function as a
regulatory structure and/or protective barrier for a cell.
3.Compare methods of passive transport (i.e, diffusion, osmosis, facilitated diffusion).
4.Analyze and predict the reaction of cells in varying environments or solutions.
5. Compare the mechanisms that transport materials across the plasma membrane (i.e.,
pumps, endocytosis, exocytosis)
6. Describe how membrane-bound organelles (e.g., endoplasmic reticulum, Golgi
apparatus) facilitate the transport of materials within a cell.
7. Describe the role of ATP in biochemical reactions.
8. Explain how organisms maintain homeostasis (e.g., thermoregulation, water
regulation, oxygen regulation).
9.Analyze how organisms use feedback and response mechanisms to maintain
homeostasis.
10. Describe the role of ATP in biochemical reactions and explain why it has high energy
bonds.
11. Describe the basic transformation of energy during photosynthesis.
12. List the general reactants and products of photosynthesis.
13. Describe the fundamental role of chloroplasts in photosynthesis.
14. Describe the basic transformation of energy during cellular respiration.
15. List the general reactants and products of cellular respiration.
16. Describe the fundamental role of mitochondria in cellular respiration.
17. Compare aerobic and anaerobic respiration (fermentation)
18. Compare the basic energy transformation of cellular respiration to that of
photosynthesis.
19. Describe the relationship between cellular respiration and photosynthesis in
photosynthetic organisms.
Vocabulary:
1. Passive transport
2. Diffusion
3. Concentration Gradient
4. Osmosis
5. Isotonic
6. Hypertonic
7. Hypotonic
8. Facilitated Diffusion
9. Active Transport
10. Endocytosis
11. Exocytosis
12. proton pump
13. sodium-potassium pump
(Chp 28.2)
14. Homeostasis
15. negative feedback
16. positive feedback
17. Hormone
18. Chemosynthesis
19. Photosynthesis
20. Cellular Respiration
21. Fermentation