CBSE Questions for Class 7 Biology Transportation In Animals And Plants Quiz 4 - MCQExams.com

The walls of veins are not thick as those of arteries because?
  • The blood is in less quantity.
  • The blood is under low pressure.
  • The blood is thicker.
  • The blood is deoxygenated.
A resting person, usually has a pulse rate between 172 and 180 beats per minute.

  • True
  • False
The blood has white blood cells which don't fight against germs that enter our body.
  • True
  • False
The relatively clear fluid medium which carries various other suspended cells of blood is called________.
  • Plasma
  • RBC
  • WBC
  • Platelets
Which of the following statement is correct about blood?
  1. Blood is the fluid which flows in blood vessels.
  2. Blood transports substances like digested food from the large intestine to the other parts of the body.
  3. It carries oxygen from the lungs to the cells of the body.
  4. It also transports waste for removal from the body.
  • 1 and 2 are correct
  • 1, 2 and 3 are correct
  • 2 and 4 are correct
  • 1, 3 and 4 are correct
Which of the following statements are true-
  1. Pulmonary artery carries blood from the heart, so it is called an artery and not a vein.
  2. It carries carbon dioxide-rich blood to the lungs.
  3. Pulmonary vein carries oxygen-rich blood from the lungs to the heart.
  • Statement 1 and 2 are true
  • Statement 2 and 3 are true
  • Statement 3 and 1 are true
  • All the statements are true
  1. The heart is an organ that beats continuously to act as a pump for the transport of blood, which carries other substances with it.
  2. The heart is located in the chest cavity with its lower tip slightly tilted towards the left.
  3. The two upper chambers are called the atria.
  4. the two lower chambers are called the ventricles.
Correct statements about the human heart are-
  • 1, 2 and 4 are correct.
  • 1 and 4 are correct.
  • 3 and 4 are incorrect.
  • All statements are correct.
Veins allow blood to flow only_________.
  • towards heart
  • towards lungs
  • towards kidneys
  • towards liver
On which side of the chest is the heart of a man present?
  • Slightly left
  • Slightly right
  • Slightly upper
  • Slightly lower
Which among the following are signs of heart attack?
  • Chest pain
  • Difficulty breathing
  • Dizziness
  • All of the above
Why is the blood from the heart should be transported to the lungs?
  • For removal of oxygen
  • For removal of carbon dioxide
  • For removal of water
  • None of the above
Which organ system removes cellular wastes as the result of cellular respiration?
  • Nervous system
  • Circulatory system
  • Excretory system
  • Digestive system
Which among the following is/are function of blood vessels?
  • Blood vessels are the tube-like structures which carry the blood through cells, tissues and organs.
  • Blood vessels are the flat structures which transport oxygen to different parts of the body.
  • Blood vessels absorbs oxygen from air in the heart.
  • All of the above.
What are the places in human body where the pulse can be felt?
  • Wrist
  • Neck
  • Upper arm
  • All of the above.
The heart is located in______.
  • Chest cavity
  • Food cavity
  • Bone cavity
  • All of the above.
The capillaries join up to form _____ which empty into the _____.
  • Arteries, Lungs
  • Veins, Heart
  • Veins, Lungs
  • Arteries, Heart
Which of the following activities benefit in maintaining a healthy heart?
  • Practicing Yoga
  • Walking everyday
  • Quitting smoking
  • All of the above
Which of the following constitutes a heartbeat in human beings?
  • Contraction
  • Relaxation
  • Both A and B
  • None of the above
Vessels that contain valves to prevent backflow of blood?
  • Veins
  • Arteries
  • Capillaries
  • Atrium
Which of the following vessels are the thinnest of all?
  • Capillaries
  • Artery
  • Veins
  • Both A and C are equal
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