Describe How Oxygen and Carbon Dioxide are Transported in Mammalian Body-Biology Essay Questions

Transport of oxygen in mammalian body. Oxygen in alveoli diffuses into capillaries of lungs; In capillaries it enters Red Blood Cells and combines with haemoglobin to form oxyhaemoglobin / (02 + haemoglobin  =   oxyhaemoglobin; Oxyhaemoglobin is transported from lungs to capillaries through Pulmonary Vein  heart and into body tissues; It dissociates readily, (oxhaemoglobin); in body […]

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Explain how a leaf is adapted for photosynthesis- Biology Essay Questions

A leaf id adapted to Photosynthesis in the following ways: Leaves contain numerous chloroplasts which help in photosynthesis; Leaves have palisade cells which trap a lot of energy from the sun for photosynthesis; Leaf veins contain xylem which transport water and mineral salts phloem transport synthesised food; Laves have guard cells regulate the entry of […]

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Form 2 ENDTERM 2 BIOLOGY

MARKING SCHEME BIOLOGY F2 1.Chloroplast ; (1mk) b) B: (1mk) c) A – Grana; contain chlorophyll, which traps light energy ,enabling light reaction of photosynthesis to take place ; B – Stroma ; contains enzyme, which control dark reactions of photosynthesis; (4mks) d) They would be absent ; because starch they contain would have been […]

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Basic human wants

1. They are felt needs 2. They cannot be postponed. 3. They must be satisfied before secondary wants 4. Lack of them may lead to death 5. They are universal

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