(a) Process :Products
Exudation/guttation; Resins, gums, latex, rubber, calcium oxalate, salts, water.
Transpiration/Diffusion; Water, carbon (IV) oxide, oxygen.
Deposition/leaf fall; Tanins, caffeine, morphine, nicotine, cocaine
(b) - Red blood cells/erythrocytes; carry oxygen; to all parts of the body/from lungs to the tissues;
- Transport carbon (IV) oxide; to the lungs from tissues (award only once for direction of either carbon (IV)
oxide or oxygen).
- Platelets/thrombocytes; produce an enzyme thrombokinase/thromboplastin; necessary for blood clotting;
- White blood cells/leucocytes/phagocytes;
- Produce antibodies/engulf pathogens; hence provide body defence against diseases/infections;
- Plasma; transport nutrients; hormones; heat; carbon (IV) oxide; nitrogenous wastes/urea; mineral ions;
fibrinogen/antibodies;
gregorymasila answered the question on February 23, 2018 at 12:13
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