Olympiad – Class VII – Science - Bio - Transportation in Living Beings

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Question - 1

What is the function of red blood cells?

  • A Transports oxygen
  • B Transports water
  • C Fight against germs
  • D Helps in blood clotting

Question - 2

Identify the components X and Y?
x- Produces antibodies
Y-Helps in blood clotting

  • A X-Platelets, Y-WBC
  • B X-RBC , Y-Platelets
  • C X-Plasma, Y-Platelets
  • D X-WBC , Y-Platelets

Question - 3

Which organ is represented by X in the human body?

  • A The skin
  • B The heart
  • C The lungs
  • D The kidneys

Question - 4

Which labelled structure in the given figure is involved in the transport of water and mineral salts?

  • A P
  • B Q
  • C R
  • D S

Question - 5

Which is the fluid part of the blood?

  • A RBC
  • B WBC
  • C Platelets
  • D Plasma

Question - 6

The following statements describe how the transport system in a plant works
P - Xylem tubes carry water and mineral salts to other parts of the plant
Q - The leaves make food in the presence of sunlight
R - The leaves receive water and mineral salts
S - Phloem tubes transport food to other parts of the plant

T - Root hairs absorb water and mineral salts from the soil Which of these is a correct sequence?

  • A P-T-Q-R-S
  • B T-P-R-S-Q
  • C P-R-Q-S-T
  • D R-Q-T-P-S

Question - 7

Identify X,Y and Z in the given figure

  • A Ureter- Urethra- Urinary bladder
  • B Ureter- Urinary- bladder Urethra
  • C Urinary bladder- Ureter- Urethra
  • D Urethra- Urinary-bladder Ureter

Question - 8

Which blood cell can do this function as shown below?

  • A Red blood cells
  • B White blood cells
  • C Platelets
  • D Denucleated red blood cells

Question - 9

Study the characteristics given below.
P - A thick walled vessel that carries oxygenated blood
Q - A
thin walled vessel that carries deoxygenated blood
R - Very small thin tubes that
connects veins and arteries
Which of these statements represent P,Q and R is correct?

  • A R-P-Q
  • B P-R-Q
  • C Q-R-P
  • D P-Q-R

Question - 10

Identify the gas that is diffusing out of the body cells into the blood.

  • A Carbon dioxide
  • B Hydrogen
  • C Oxygen
  • D Carbon monoxide