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Biology Questions Answers MCQ Quiz PDF Download: IGCSE Biology MCQs

MCQ 1: In tuberculosis, the bacteria usually attack

A) skin
B) lungs
C) heart
D) limbs

MCQ 2: All are correct for seeds shedding from the parent plant, except

A) it can grow right away
B) it is in a state of dormancy
C) it has little water content
D) it is metabolically inactive.

MCQ 3: The purpose of Hydrophilic R group is to

A) prevent the enzyme from being denatured at higher temperatures
B) add the stability of the enzyme
C) ensure that they are soluble
D) help protein molecule coil in three dimensional space

MCQ 4: Well organized transport system needs a

A) large surface area compared to total volume
B) smaller surface area compared to total volume
C) pump to keep fluid moving through them
D) may rapidly develop carcinogens

MCQ 5: Emphysema is caused due to

A) bursting of alveoli only
B) decrease in the surface area of gas exchange only
C) tracheal infection
D) bursting of alveoli and decrease in the surface area for gas exchange

IGCSE A Level Biology Practice Tests

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