Question

True or false

1- Bronchi and trachea have the same overall structure.

2- Gas exchange is one of the functions of the bronchi.

3- A gas may or may not diffuse down it’s partial pressure gradient.

4- Most of the oxygen is carried by hemoglobin.

5- Unicellular organisms can exchange gasses directly with the environment

6- Osmoregulation is a function of the kidneys

7- Fresh water fish have the same osmoregulatory mechanisms as the marine fish

8- Filtration in the glomerulus is specific

9- pH can be regulated in the collecting duct.

10- Bowman’s capsule is part of the nephron where filtration happens.

11- The function of ANP is antagonistic to the renin-angiotensin-aldosterone-system.

Answer 1

Answere :

1. Yes, statement is true i.e Both bronchi and trachea have similar overall structure.

2. No, statement is false i.e. there is no exchange if gases in bronchi.

3. No, statement is false i.e. A gas always diffuse down its partial pressure gradient.

4. Yes, statement ia true i.e.haemoglobin carries nearly 98% of oxygen.

5. Yes, statement is true i.e unicellular organism has large surface area for exchange gases with envirnoment.

6. Yes, statement is true. i.e osmoregulation is main function of kidney.

7. No, statement is false. Fresh water fish and marine water fish has differant internal osmoregulatory mechanism.

8. Yes, statement is true. i.e. filteration in glomerulus is specific.

9. Yes, statement is true. i.e. collecting duct appear to regulate the acid-base and volume homeostasis.

10. Yes, statement is true i.e. filteration occur in bowman's capsule.

11. Yes, statement is true i.e ANP is antagonistic to renin-angiotensin-aldosterone-system.