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