IGCSE O Level Biology Practice Test 184

Molecular Biology Multiple Choice Questions (MCQs) PDF Download - 184

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Molecular Biology MCQ Quiz with Answers PDF Download: Test 184

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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