Question # 1

Which gas reacts with food to convert it into carbon dioxide and water.

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Oxygen

Nitrogen

Phosphorus

Argon

A substance that speed up the chemical reactions is called.

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Solute

Solvent

Solution

Catalyst

Blood vessels that carry blood away from the heart are

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Capillaries

Veins

Arteries

Vanules

The thin transparent membrane around heart is called.

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Pericardium

Atria

Veins

Ventricle

Which artery supply blood to the heart

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Pulmonary artery

Hepatic artery

Coronary Artery

Aorta

Exchange of gases takes place in.

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Lungs

Bronchioles

Aleoli

Blood

Without fibringonen, plasma is called.

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Blood

Serum

Haemoglobin

None of these

Exchange of material in the body tissues and blood takkes place in.

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Aorta

Ventricles

Capillaries

Veins

Trachea divides into two

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Bronchi

Veins

Villi

Ribs

The ... prevents food from entering the trachea.

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Glottis

Epiglottis

Bronchi

Alveoli

Aerobic respiation takes place in.

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Mitochondria

Chloroplast

Nucleus

Blood vessels

Right atrium receives.

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Oxgynated blood

Deoxygenated blood

BOth types of blood

no blood

Which diseae is an allergic response for the body to substance like pollen and household dust.

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Pnemonia

Asthma

Flue

None of these

One gram of glucose produce abut.............. calories of energy .

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3600

3700

3800

3900

The pulse tells us the rate of..........

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Breathing

Heart beat

Both a and b

None of these

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Science 7th Class English Medium Chapter 2 Online Test MCQs With Answers

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