Which of the following is the main circulatory fluid in our body ?
  • Plasma
  • Lymph
  • Blood
  • None of these
Which one of the following contains haemoglobin?
  • RBC
  • WBC
  • Platelets
  • None of these
What is the function of WBCs?
  • Transport of oxygen
  • Fight against germs
  • Involved in blood clotting
  • All of these
Blood platelets help in
  • formation of urine
  • excretion of urine
  • sweating
  • blood clotting
The muscular tube through which stored urine is passed out of the body is called:
  • kidney
  • ureter
  • urethra
  • urinary bladder
They are pipe-like, consisting of a group of specialised cells. They transport substances and form a two-way traffic in plants. Which of the following terms qualify for the features mentioned above?
  • Xylem tissue
  • Vascular tissue
  • Root hairs
  • Phloem tissue
The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in:
  • veins
  • arteries
  • heart
  • capillaries
In which of the following parts of human body are sweat glands absent?
  • Scalp
  • Armpits
  • Lips
  • Palms
In a tall tree, which force is responsible for pulling water and minerals from the soil?
  • Gravitational force
  • Transportation force
  • Suction force
  • Conduction force
Aquatic animals like fish excrete their wastes in gaseous form as
  • Oxygen
  • Hydrogen
  • Ammonia
  • Nitrogen
which is of the following is incorrect
  • The filtering of blood periodically through an artificial kidney is called dialysis
  • Pulmonary artery carries blood rich in carbon dioxide from the right ventricle of the heart to the lungs.
  • there are valves present in arteries
  • The process of removal of wastes produced in the cells of the living organisms is called excretion.
The filtering unit in the human excretory system is
  • neutron
  • neurons
  • nephron
  • none of these
Which of these helps in blood clotting?
  • RBC
  • haemoglobin
  • platelets
  • WBC
Aquatic animals like fish excrete their wastes in gaseous form as
  • Oxygen
  • Hydrogen
  • Ammonia
  • Nitrogen
The exchange of various materials between the blood and body cells takes place through
  • Arteries
  • Veins
  • lungs
  • Capillaries
Match the column
class7-science-chapter-11-mcq-1.png
  • p ->iv, q ->iii, r ->ii, s- >i
  • p ->ii, q ->iv, r ->i, s- >iii
  • p ->ii, q ->iii, r ->iv, s- >i
  • p ->iv, q ->iii, r ->i, s- >ii
The average heart beat of an adult human is
  • 72 to 80 per min
  • 100 to 120 per min
  • 150 to 180 per min
  • 30 to 40 per min
water is transported in plants through
  • Root hair
  • Stomata
  • Midrib
  • xylem
Two statement are made (i) Arteries have no muscular walls (ii) Veins carry blood from different parts of the body to the heart. Which of these is true
  • (i) only
  • (ii) only
  • (i) and (ii) both are correct
  • Both statements are incorrect.
which instrument is used to listen to your heartbeat
  • Stethoscope
  • oxo-meter
  • blood pressure monitor
  • none of these
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