Define tissue, organ and organ system

Reference no: EM13318633

1. Define tissue, organ and organ system.
2. What are the three characteristics of a homeostatic control mechanism and what is the function of each characteristic?
3. Define homeostasis.
4. What is the difference between a negative and positive feedback mechanism?
5. What are the three components of a cell?
6. What is the basic structure of the plasma membrane? What are the molecules associated with the plasma membrane?
7. What are microvilli, cilia and flagella and what are their functions?
8. What are the three special membrane junctions and what are their functions?
9. List the active and passive transport mechanisms.
10. What is the difference between simple diffusion, facilitated diffusion and osmosis? List examples of molecules that use each type of transport mechanism.
11. What is meant by moving up (against) or down (with) a concentration gradient?
12. What is the function of the sodium/potassium pump?
13. What is the difference between exocytosis, phagocytosis, pinocytosis, and receptor-mediated endocytosis?
14. List the different organelles, their basic structures and main functions (same info as in table within notes).
15. What is found in the nucleus?
16. What is the difference between chromatin, chromosome and chromatid?
17. What is the difference between the mitotic phase and interphase of the cell cycle?
18. List the different steps of mitosis and the basic function of each step.
19. How many chromosomes are in a cell's nucleus?
20. How many homologous pairs of chromosomes are in a cell's nucleus?

Reference no: EM13318633

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