I: | Bile emulsifies fat. |
II: | Pancreatic juices digest carbohydrates and proteins. |
III: | Digested food is absorbed by the numerous finger-like folds in the inner wall of intestine called villi and microvilli. |
IV: | The undigested solid waste moves into the rectum and passes out through cloaca. |
I | II | III | IV | |
1. | T | T | F | T |
2. | F | T | T | F |
3. | T | T | T | T |
4. | T | F | F | T |
Frogs respire on land and in water by two different methods:
Statement I: | In water, skin acts as aquatic respiratory organ (cutaneous respiration). |
Statement II: | On land, the buccal cavity, skin and lungs act as the respiratory organs. |
1. | Statement I is correct, Statement II is correct |
2. | Statement I is incorrect, Statement II is correct |
3. | Statement I is correct, Statement II is incorrect |
4. | Statement I is incorrect, Statement II is incorrect |
The single ventricle in the heart of a frog:
1. | opens into a sac-like conus arteriosus on the dorsal side of the heart. |
2. | opens into a sac-like conus arteriosus on the ventral side of the heart. |
3. | opens into a dilated chamber sinus venosus on the ventral side of the heart. |
4. | opens into a dilated chamber sinus venosus on the dorsal side of the heart. |
I: | Hepatic portal system |
II: | Renal portal system |
Sinus venosus in the heart of a frog:
I: | joins the left atrium |
II: | pumps blood into the major arteries |
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Statement I: | The vascular system of frog is well-developed and closed type. |
Statement II: | Frogs do not have a lymphatic system. |
1. | Statement I is correct, Statement II is correct |
2. | Statement I is incorrect, Statement II is correct |
3. | Statement I is correct, Statement II is incorrect |
4. | Statement I is incorrect, Statement II is incorrect |
Heart of a frog:
I: | has three chambers |
II: | is a muscular pump |
III: | is covered by pericardium |
1. Only I and II are correct
2. Only I and III are correct
3. Only II and III are correct
4. I, II and III are correct
I: | are nucleated |
II: | contain haemoglobin |
The excretory product eliminated by a frog is:
1. | Ammonia | 2. | Urea |
3. | Uric acid | 4. | Creatine |