Chapter-wise MCQ Questions

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Question-1. Which of the following is the main circulatory fluid in our body ?

  1. Lymph
  2. Blood
  3. None of these
  4. Plasma
Answer-1

Question-2. Which one of the following contains haemoglobin?

  1. WBC
  2. Platelets
  3. None of these
  4. RBC
Answer-2

Question-3. ____________failure can be treated by the method of Dialysis.

  1. Eye
  2. Kidney
  3. Liver
  4. Heart
Answer-3

Question-4. A kidney, ureter and urinary bladder together are called-

  1. Excretory system
  2. Circulatory system
  3. Reproductive system
  4. Respiratory system
Answer-4

Question-5. A resting person usually has a pulse rate between

  1. 82 and 90 beats per minute
  2. 62 and 70 beats per minute
  3. 52 and 60 beats per minute
  4. 72 and 80 beats per minute
Answer-5

Question-6. All Organisms need food, water and…................for survival

  1. Oxygen
  2. Nitrogen
  3. Argon
  4. Carbon dioxide
Answer-6

Question-7. Any two substances that are transported by blood:

  1. water and oxygen
  2. oxygen, food
  3. none of these
  4. water, air
Answer-7

Question-8. Aquatic animals excrete cell waste mostly as

  1. oxygen
  2. carbon dioxide
  3. nitrogen
  4. ammonia
Answer-8

Question-9. Blood carries….................from lungs to the cells of the body

  1. Neon
  2. Carbon dioxide
  3. Nitrogen
  4. Argon
Answer-9

Question-10. During transpiration water is lost from the plant in the form of:

  1. liquid
  2. hydrogen and oxygen gas
  3. steam
  4. water vapour
Answer-10

Question-11. Heart rate increases during

  1. Sleep and eating
  2. Exercise and fever
  3. Rest and indigestion
  4. Bathing and eating
Answer-11

Question-12. In case of Hydra…....................brings the food and oxygen as the organism moves inside the water.

  1. The air that is taken by the organism
  2. The food taken by the organism
  3. The air that is taken by the organism
  4. Water in which the organism moves
Answer-12

Question-13. Insects excrete uric acid in form of:

  1. gases
  2. both a and b
  3. solids
  4. liquid
Answer-13

Question-14. Name an instrumental device used to amplify the sound of heart.

  1. UV machine
  2. Both (a) and (b)
  3. Ultrasound machine
  4. Stethoscope
Answer-14

Question-15. Red pigment in Red Blood Cells is

  1. plasma
  2. arteries
  3. veins
  4. haemoglobin
Answer-15

Question-16. The Arteries have thick elastic walls because

  1. slow blood flows at low pressure
  2. Rapid blood flows at low pressure
  3. slow blood flows at high pressure
  4. Rapid blood flows at high pressure
Answer-16

Question-17. The blood vessels which carry oxygen rich blood from the heart to all parts of the body are called ( )

  1. Veins
  2. RBC
  3. WBC
  4. Arteries
Answer-17

Question-18. The device used by the doctor to check up the heart beat is called

  1. thermometer
  2. barometer
  3. stethoscope
  4. anemometer
Answer-18

Question-19. The effect of sweat on the human body is

  1. it causes heating
  2. it causes freezing
  3. It causes melting
  4. It causes cooling
Answer-19

Question-20. The formation of clot when bleeding is stopped from a wound in a human body is due to

  1. WBC
  2. Platelets
  3. Haemoglobin
  4. RBC
Answer-20

Question-21. The function of the Blood is to transport

  1. Digested food from the parts of the body to the large intestine
  2. digested food from small intestine to the large intestine
  3. Digested food from small intestine to the large intestine
  4. The digested food from the small intestine to the other parts of the body
Answer-21

Question-22. The heart is located in the

  1. kidney cavity
  2. Brain cavity
  3. muscle cavity
  4. Chest cavity
Answer-22

Question-23. The number of heart beats per minute is called

  1. throbbing
  2. beating
  3. none of these
  4. pulse rate
Answer-23

Question-24. The Organism that does not have circulatory system

  1. Frog
  2. Human
  3. Hydra
  4. Dog
Answer-24

Question-25. The process by which a plant loses water through the stomata is called:

  1. transpiration
  2. respiration
  3. sweating
  4. excretion
Answer-25

Question-26. The processes of removal of waste materials from the body is called

  1. Excretion
  2. Respiration
  3. Inhalation
  4. Digestion
Answer-26

Question-27. The throbbing movements of the blood flow in the Arteries is called

  1. Crest
  2. Peak
  3. Nest
  4. Pulse
Answer-27

Question-28. The uric acid excreted by lizards is

  1. Red in colour
  2. Brown in Colour
  3. Black in colour
  4. White in colour
Answer-28

Question-29. The urine from kidneys passes to urinary bladder through

  1. Urinary tubules
  2. Urethra
  3. Fallopian tube
  4. Ureter
Answer-29

Question-30. The vascular tissue for the transport of water and nutrients in the plant is called

  1. Phloem
  2. Tissue
  3. Plasma
  4. Xylem
Answer-30

Question-31. The vessels that transport water and minerals are called

  1. Vacuoles
  2. Phloem
  3. Xylem
  4. Stomata
Answer-31

Question-32. Veins allow blood to flow only

  1. Away from the heart
  2. Towards lungs
  3. Away from the lungs
  4. Towards the heart
Answer-32

Question-33. What is the state of the blood?

  1. Fluid
  2. Gas
  3. None of these
  4. Solid
Answer-33

Question-34. Which blood group is called as universal donor?

  1. A
  2. B
  3. AB
  4. O
Answer-34

Question-35. Which chamber of heart receives oxygenated blood from pulmonary circulation?

  1. Right ventricle
  2. Left ventricle
  3. Right atrium
  4. Left atrium
Answer-35

Question-36. Which of the following is the main circulatory fluid in our body ?

  1. Lymph
  2. Blood
  3. None of these
  4. Plasma
Answer-36

Question-37. Which of the following mechanisms is not used by human beings for excretion of waste materials from their bodies?

  1. Perspiration
  2. Defecation
  3. Transfusion
  4. Exhalation
Answer-37

Question-38. White patches formed in areas like underarms are due to

  1. sugars present in the sweat
  2. Acids present in the sweat
  3. Bases present in the sweat
  4. Salts present in the sweat
Answer-38

Question-39. Aquatic animals like fish excrete their wastes in gaseous form as

  1. Hydrogen
  2. Ammonia
  3. Nitrogen
  4. Oxygen
Answer-39

Question-40. Blood platelets help in

  1. excretion of urine
  2. sweating
  3. blood clotting
  4. formation of urine
Answer-40

Question-41. In a tall tree, which force is responsible for pulling water and minerals from the soil?

  1. Transportation force
  2. Suction force
  3. Conduction force
  4. Gravitational force
Answer-41

Question-42. In which of the following parts of human body are sweat glands absent?

  1. Armpits
  2. Lips
  3. Palms
  4. Scalp
Answer-42

Question-43. The absorption of nutrients and exchange of respiratory gases between blood and tissues takes place in:

  1. arteries
  2. heart
  3. capillaries
  4. veins
Answer-43

Question-44. The muscular tube through which stored urine is passed out of the body is called:

  1. ureter
  2. urethra
  3. urinary bladder
  4. kidney
Answer-44

Question-45. 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?

  1. Vascular tissue
  2. Root hairs
  3. Phloem tissue
  4. Xylem tissue
Answer-45

Question-46. What is the function of WBCs?

  1. Fight against germs
  2. Involved in blood clotting
  3. All of these
  4. Transport of oxygen
Answer-46



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