IGCSE O Level Biology MCQs – Mock Test 184

Molecular Biology MCQ with Answers PDF Download – Test 184

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Molecular Biology MCQ – Mock Test 184 PDF Download

MCQ 916: Ozone depletion can be prevented with:

use of scrubbers in factory chimneys
acidic waste is treated with alkalis
fossil fuels are used in factories
lower consumption of chlorofluorocarbons-based products

MCQ 917: In plants, venation refers to transporting food:

for storage
in shoot
through vein network
through phloem

MCQ 918: Wing becomes a flattened extension of testa in:

plumed fruits
plumed seeds
winged seeds
winged fruits

MCQ 919: The purpose of vasodilation and vasoconstriction is to:

release enzymes
regulate the body temperature
secrete more bile
help liver to detoxify benzoic acid

MCQ 920: Enzymes vital for aerobic respiration (with O₂) are found in:

platelets
centriole
nucleus
mitochondria

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