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