Quick Quiz Revision Questions Cell Membranes

Transcription

1 Quick Quiz Revision Questions Cell Membranes 1. What is the model for cell membrane structure called? Why is it called this? 2. What is the function of plasma membrane? 3. Draw one phospholipid, label the phosphate head, fatty acid tails, polar region, nonpolar region, hydrophobic region, and hydrophilic region. 4. Other than phospholipids, name the other parts of a plasma membrane. 5. What is the function of an intrinsic protein? 6. What is the function of glycocalyx (the carbohydrate chains)? 7. What is the function of cholesterol in a membrane? 8. Define simple diffusion. 9. List 3 factors that affect the rate of diffusion. 10. Define facilitated diffusion. 11. How is facilitated diffusion different from simple diffusion? 12. Define active transport 13. How are active transport and facilitated diffusion similar? How are they different? 14. What 3 things affect the rate of active transport? 15. What type of molecules are moved by endocytosis and exocytosis? 16. Are endocytosis and exocytosis a passive or an active process? Explain your answer. 17. How does diffusion change as the surface area:volume ratio increases? 18. Define osmosis.

2

3

4

5

6

7

8

9

10 Quick Quiz Revision Questions The Cardiovascular System 1. What are the chambers called where the blood enters the heart? 2. What is the name of the valves between the atria and the ventricles? What is their function? 3. What are the chambers called where blood leaves the heart? 4. What is the name of the bllod vessels which: a. Leaves the heart to the lungs b. Leaves the heart to the body c. Returns to the heart from the body d. Returns to the heart from the lungs? 5. Give 2 differences in the structure of the aorta and the vena cava. Explain the reasons for these differences. 6. Why do veins have valves? 7. What is the function of the following in controlling th electrical heartbeat of the heart: a. Sinoatrial node b. Atrioventricular node c. Purkinje fibres d. Bundle of his 8. What is the equation to calculate cardiac output? 9. What are the 8 types of blood? 10. What determines blood type? 11. What happens if you put the wrong blood into a person? Why? 12. What does systole mean? 13. What does diastole mean? 14. Draw a label an ECG 15. How do the following factors affect the risk of cardiovascular disease: a. Genetics b. Age c. Gender d. Diet e. High blood pressure f. Smoking g. Inactivity 16. List the ways cardiovascular disease can be treated. 17. Give advantages and disadvantages of heart transplants.

11

12

13

14

15

16

17

18

19

20 Quick Quiz Revision Questions Ventilation and gas exchange in the lungs 1. Where does gas exchange take place in the lungs? 2. How are the following adaptations for gas exchange in alveoli: a. Lots of folds and lots of alveoli b. Close connection to a capillary network c. Thin walls (one cell thick) d. Covered in surfactant/moist 3. Describe the process of expiration, covering: a. Intercostal muscle action b. Diaphragm action c. Volume in the thorax (chest cavity) d. Pressure in the thorax e. Movement of air 4. Describe the process of inspiration, covering: a. Intercostal muscle action b. Diaphragm action c. Volume in the thorax (chest cavity) d. Pressure in the thorax e. Movement of air 5. Why is oxygen important for the human body? 6. Draw and label a spirometer trace with: a. Tidal volume b. Inspiratory reserve volume c. Residual volume d. Expiratory reserve volume e. Vital capacity f. Total lung capacity 7. Describe how peak expiratory flow is used to measure lung function. 8. Describe how forced vital capacity is used to measure lung function.

21

22

23

24 Quick Quiz Revision Questions Urinary System Structure and Function 1. What is the function of the ureter? 2. What is the function of the bladder? 3. What is the function of the renal vein? 4. What is the function of the renal artery? 5. What process takes place at the glomerulus and Bowman s capsule? 6. What products are filtered out of the blood into the Bowman s capsule? 7. Why aren t proteins filtered out of the blood? 8. What causes the high pressure in the glomerulus? 9. Describe the features of the glomerulus which allows it to filter out small molecules. 10. What is the function of the proximal convoluted tubule? 11. What is reabsorbed from the PCT into the blood? 12. How are the cells of the PCT adapted for their function? Give two ways. 13. Why is the loop of Henle known as the counter current multiplier? 14. What is the function of the Loop of Henle? 15. What is the name of the hormone which is involved in osmoregulation? 16. What is the function of ADH? 17. How does dialysis work? 18. What are the advantages and disadvantages of kidney transplantation?

25

26

27

28

29

30

31

32

33

34