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