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