O Level Biology Practice Test 3

Stomata and Functions Quiz Answers PDF Download - 3

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Biology: Stomata & Functions MCQs Quiz PDF Download

MCQ: Guard cells of stoma are

A) irregular in shape

B) convex in shape

C) long and cylindrical in shape

D) kidney-shaped

MCQ: Special kind of protein containing iron is called as

A) hormones

B) hemoglobin

C) fibrinogen

D) globulins

MCQ: In the cardiac system, systole means

A) a "lub" sound

B) ventricular relaxation

C) closure of semilunar valves

D) a "dub" sound

MCQ: The pH of succus entericus is

A) below 7

B) neutral

C) above 7

D) depending upon the type of food to be digested

MCQ: Pulmonary veins carry

A) red oxygenated blood

B) bluish red deoxygenated blood

C) deoxygenated blood from heart to the lungs

D) oxygenated blood from lungs to heart

Mock Tests: O Level Biology Course Prep

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Features of sexual reproduction in animals Quiz

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Stomata and Functions Quiz

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