10 EXTRA QUESTIONS OF CH1 LIFE PROCESSES
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1. Suggest two salts that are used in black and white photography.
2.Name one plant hormone which inhibits growth. Write its one more function.
3. State the role of the following in human digestive system :
(i) Digestive enzymes (ii) Hydrochloric acid (iii) Villi. 4.Explain how does the exchange of gases occur in plants across the surface of stems, roots and leaves.
5.How are water and minerals transported in plants ?
6. In mammals and birds why is it necessary to separate oxygenated and de-oxygenated blood ?
7.Draw the structure of excretory unit of a human kidney and label the following (a) Bowmans Capsule (b) Glomerulus (c) Collecting duct (d) Renal Artery
7.Name the stimulus in the following movements
(a) Phototropism
(b) Geotropism
(c) Chemotropism. 8.Explain the process of breakdown of glucose in a cell
(a) In the presence of oxygen
(b) In the absence of oxygen.
2.Name one plant hormone which inhibits growth. Write its one more function.
3. State the role of the following in human digestive system :
(i) Digestive enzymes (ii) Hydrochloric acid (iii) Villi. 4.Explain how does the exchange of gases occur in plants across the surface of stems, roots and leaves.
5.How are water and minerals transported in plants ?
6. In mammals and birds why is it necessary to separate oxygenated and de-oxygenated blood ?
7.Draw the structure of excretory unit of a human kidney and label the following (a) Bowmans Capsule (b) Glomerulus (c) Collecting duct (d) Renal Artery
7.Name the stimulus in the following movements
(a) Phototropism
(b) Geotropism
(c) Chemotropism. 8.Explain the process of breakdown of glucose in a cell
(a) In the presence of oxygen
(b) In the absence of oxygen.
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