Question # 1

The humna circulatory system is consist of

Choose an answer

Heart

Blood

Blood vessels

All of these

Trachea divides into two

Choose an answer

Bronchi

Veins

Villi

Ribs

The concentration of water in plasma is.

Choose an answer

55%

45%

92%

95%

Aerobic respiation takes place in.

Choose an answer

Mitochondria

Chloroplast

Nucleus

Blood vessels

Exchange of gases takes place in.

Choose an answer

Lungs

Bronchioles

Aleoli

Blood

A substance that speed up the chemical reactions is called.

Choose an answer

Solute

Solvent

Solution

Catalyst

Without fibringonen, plasma is called.

Choose an answer

Blood

Serum

Haemoglobin

None of these

The thin transparent membrane around heart is called.

Choose an answer

Pericardium

Atria

Veins

Ventricle

Which artery supply blood to the heart

Choose an answer

Pulmonary artery

Hepatic artery

Coronary Artery

Aorta

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

Choose an answer

Oxygen

Nitrogen

Phosphorus

Argon

The part of the heart which receives blood from lungs.

Choose an answer

Left atrium

Right atrium

Left ventricle

Right ventricle

The ... prevents food from entering the trachea.

Choose an answer

Glottis

Epiglottis

Bronchi

Alveoli

Right atrium receives.

Choose an answer

Oxgynated blood

Deoxygenated blood

BOth types of blood

no blood

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

Choose an answer

Breathing

Heart beat

Both a and b

None of these

The opening of air passage in the laryanx is called.

Choose an answer

Trachea

Bronchi

Glottis

Alveoli

More Classes

Other Links

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

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer