Ncert- science – class 7- Chapter 7 – Transportation in Animals and Plants 1 Welcome to your Ncert- science – class 7- Chapter 7 – Transportation in Animals and Plants 1 1. Which of the following statements are true-Pulmonary artery carries blood from the heart, so it is called an artery and not a vein.It carries carbon dioxide-rich blood to the lungs.Pulmonary vein carries oxygen-rich b Statement 3 and 1 are true Statement 1 and 2 are true All the statements are true Statement 2 and 3 are true None 2. Pulmonary vein carries oxygenated blood from: Heart to lungs Heart to its walls Heart to all body parts Lungs to heart None 3. Which of the following is likely to increase in number when the body is under attack from bacteria? Platelets Bone cells RBCs WBCs None 4. The correct sequence of urine movement is Kidney -->Bladder -->Ureter --> Urethra Kidney -->Ureter -->Bladder -->Urethra Bladder -->Urethra -->Kidney -->Ureter Bladder --> Kidney --> Ureter -->Urethra None 5. The walls of veins are not thick as those of arteries because? The blood is thicker. The blood is deoxygenated. The blood is under low pressure. The blood is in less quantity. None 6. None 7. Which of the following is used as artificial kidney in the patients suffering from kidney failure?, Ventilation Filteration Dialysis Circulation None 8. The stethoscope was discovered by Rene Laennec Jean-Nicolas Corvisart Leopold Auenbrugger Antonie van Leeuwenhoek None 9. Arteries are best defined as the vessels which Carry blood away from the heart to different organs Supply oxygenated blood to the different organs Break up into capillaries which reunite to form a vein Carry blood from one visceral organ to another visceral organ None 10. Why is the blood from the heart should be transported to the lungs? None of the above For removal of oxygen For removal of carbon dioxide For removal of water None 11. Urine is stored in the Ureter Kidney Urethra Urinary bladder None 12. The tubes which connect the kidney and urinary bladder is known as None of the above Urethra Kidney Ureter None 13. Arteries can be distinguished from veins because the arteries have: More blood cells Thinner walls More plasma Thicker walls None 14. Which of the following activities benefit in maintaining a healthy heart? All of the above Walking everyday Quitting smoking Practicing Yoga None 15. Due to the presence of hemoglobin, ____________. Veins appear red Arteries appear red Veins appear blue Arteries appear blue None 16. The separation of the atria and ventricles helps to: Both A and C. Pump blood only to upper parts of the body. Pump blood only to lower parts of the body. Prevent mixing of the blood. None 17. The heart is an organ that beats continuously to act as a pump for the transport of blood, which carries other substances with it.The heart is located in the chest cavity with its lower tip slightly tilted towards the left.The two upper chambers are called the atria.the two lower chambers are called the ventricles.Correct statements about the human heart are- 3 and 4 are incorrect. 1, 2 and 4 are correct. All statements are correct. 1 and 4 are correct. None 18. The capillaries join up to form _____ which empty into the _____. Veins, Heart Arteries, Heart Arteries, Lungs Veins, Lungs None 19. Which among the following is/are function of blood vessels? Blood vessels absorbs oxygen from air in the heart. 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. All of the above. None 20. The relatively clear fluid medium which carries various other suspended cells of blood is called________. WBC Plasma RBC Platelets None 21. The composition of urine is: 95% water, 2.5 % urea and 2.5% other waste 95% water, 2.5 % urea and 12.5% other waste 25% water, 2.5 % urea and 2.5% other waste None of the above None Time's up Please Share This Share this content Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Opens in a new window Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.
