(a) (i) Explain the term agglutination as used in blood transfusion. (ii) The table below...
(a) (i) Explain the term agglutination as used in blood transfusion.
(ii) The table below represents blood transfusion between blood donors and recipients.
| Donor | Recipient | ||||
| A | B | AB | O | ||
| A | |||||
| B | |||||
| AB | |||||
| O | + | ||||
(b) Explain how each of the following organisms are adapted for obtaining food.
(i) Mosquito larva
(ii) Dodder plant
(iii) Grasshopper
Explanation
(a)(i) Agglutination;
The clumping together; of antigens or red blood cells/RBC; with the corresponding antibodies in the plasma; of incompatible blood groups/wrong blood group.
(ii)
| Donor | Recipient | ||||
| A | B | AB | O | ||
| A | |||||
| B | |||||
| AB | |||||
| O | |||||
(b) How each of the following organisms are adapted for obtaining food
(i)Mosquito larva - Possess a pair of ciliated mouth brushes; for creating water current to carry water with food particle into the mouth; - Its mouth brushes; filter food out of water and sweep it into the mouth.
(ii)Dodder plant - Possess haustoria; for penetrating host plant tissue to obtain food/water
(iii)Grasshopper
- Possess mandibles/heavy toothed jaw-like structures; for cutting/crushing food/plant materials/vegetation
- Possess maxillae; for directing food to mandibles/cutting/grinding food
- Labrun; for holding food/ plant materials/vegetation
- Labium; for guiding foods/prevent it from falling off.