IGCSE O Level Biology MCQs – Practice Test 8 (Chapter 8)

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Excretion O Level Biology Test Questions and Answers PDF Download: MCQ 8

MCQ 36: Loss of water during sweating stimulates:

production of ADH
lesser reabsorption of water
lower osmotic pressure in plasma
release of adrenaline

MCQ 37: Amount of ADH (Antidiuretic Hormone) secreted determines amount of:

nutrients reabsorbed
water reabsorbed
water excreted
food injested

MCQ 38: Large intake of water:

decreases osmotic pressure in plasma
stimulates active production of ADH
produces lesser urine
causes excess selective reabsorption

MCQ 39: In excretion, ultrafiltration retains:

blood plasma
small molecules
water
solid molecules

MCQ 40: Removal of metabolic waste is not the only method to get rid of them. Other means include:

depositing them into dead cells
converted into harmless insoluble substances
converted to soluble harmless substances
converted into soluble harmful substances

Excretion: O Level Biology Notes App & e-Book – IGCSE O Level Biology Admission Tests

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