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. The tubes which connect the kidney and urinary bladder is known as Ureter Kidney Urethra None of the above None 2. Which of the following activities benefit in maintaining a healthy heart? Practicing Yoga Quitting smoking Walking everyday All of the above None 3. The stethoscope was discovered by Rene Laennec Jean-Nicolas Corvisart Leopold Auenbrugger Antonie van Leeuwenhoek None 4. Which of the following is likely to increase in number when the body is under attack from bacteria? Platelets Bone cells WBCs RBCs None 5. Why is the blood from the heart should be transported to the lungs? For removal of carbon dioxide For removal of oxygen None of the above For removal of water None 6. The separation of the atria and ventricles helps to: Both A and C. Prevent mixing of the blood. Pump blood only to lower parts of the body. Pump blood only to upper parts of the body. None 7. The walls of veins are not thick as those of arteries because? The blood is in less quantity. The blood is deoxygenated. The blood is under low pressure. The blood is thicker. None 8. Urine is stored in the Urinary bladder Ureter Urethra Kidney None 9. Which among the following is/are function of blood vessels? Blood vessels absorbs oxygen from air in the heart. All of the above. 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. None 10. 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. 1 and 4 are correct. All statements are correct. None 11. The relatively clear fluid medium which carries various other suspended cells of blood is called________. WBC RBC Plasma Platelets None 12. Due to the presence of hemoglobin, ____________. Arteries appear red Arteries appear blue Veins appear blue Veins appear red None 13. Which of the following is used as artificial kidney in the patients suffering from kidney failure?, Ventilation Circulation Dialysis Filteration None 14. Pulmonary vein carries oxygenated blood from: Heart to its walls Lungs to heart Heart to all body parts Heart to lungs None 15. Arteries are best defined as the vessels which Carry blood from one visceral organ to another visceral organ Supply oxygenated blood to the different organs Break up into capillaries which reunite to form a vein Carry blood away from the heart to different organs None 16. 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 1 and 2 are true Statement 2 and 3 are true All the statements are true Statement 3 and 1 are true None 17. Arteries can be distinguished from veins because the arteries have: More blood cells More plasma Thicker walls Thinner walls None 18. The composition of urine is: 95% water, 2.5 % urea and 12.5% other waste 25% water, 2.5 % urea and 2.5% other waste None of the above 95% water, 2.5 % urea and 2.5% other waste None 19. The correct sequence of urine movement is Bladder --> Kidney --> Ureter -->Urethra Kidney -->Ureter -->Bladder -->Urethra Bladder -->Urethra -->Kidney -->Ureter Kidney -->Bladder -->Ureter --> Urethra None 20. The capillaries join up to form _____ which empty into the _____. Arteries, Lungs Veins, Lungs Arteries, Heart Veins, Heart None 21. 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.
