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Question:- Name the blood vessel which carries blood back to the heart? A. Vein B. Artery C. Capillaries D. Platelet
Answer:- Ans. A Explanation: Arteries carries blood from the heart to the body organs and veins carries blood from the body organs back to the heart.
Question:- Transportation of food in plants takes place through: A. Xylem B. Phloem C. Companion cells D. Tracheids
Answer:- Ans B Explanation: Plants have two tissues that help in transportation. Xylem transports water and solutes from the roots to the leaves while phloem transports food from the leaves to the rest of the plant.
Question:- After wound or cut in a body blood coagulates through: A. WBC B. RBC C. Platelets D. Plasma
Answer:- Ans. C Explanation: After wound or cut in a body it starts to bleed. But within few seconds or minutes blood cells start to clump together and clot, preventing the further blood loss. These clots are created by a type of blood cell called platelet.
Question:- When blood is forced into the artery, wave like expansion takes place is called: A. Heart beat B. Pulse C. Flow D. Ticking
Answer:- Ans. B Explanation: The expansion of an artery each time the blood is forced into it is called pulse. The pulse rate of an adult person while resting is 70 to 72 per minute. From the above quiz we have seen various life processes that take place in an organism.
Question:- In amoeba excretion takes place through the process of: A. Diffusion B. Infusion C. Uricotelic D. None of the above
Answer:- A
Question:- Name the excretory organ present in earthworm through which excretion takes place? A. Moist Skin B. Nephridia C. Both A and B D. Only B
Answer:- C
Question:- The major waste produced by human body are: A. Carbon dioxide B. Urea C. Both A and B D. Only B
Answer:- C
Question:- Which organ in the human body is responsible for removing carbon dioxide from the body? A. Kidney B. Lungs C. Blood D. Ureter
Answer:- B
Question:- Each kidney is made up of a large number of excretory units called: A. Glomerulus B. Bowman’s Capsule C. Nephron D. Blood capillaries
Answer:- C
Question:- In which of the following are the largest amounts of nitrogen excreted from a mammalian body? A. Breath B. Sweat C. Urine D. Faeces
Answer:- C
Question:- The best long term solution for kidney failure is: A. Dialysis B. Kidney transplant C. Both A and B D. Only B
Answer:- B
Question:- What types of nitrogenous wastes are excreted by living organisms? A. Ammonia B. Uric acid C. Urea D. All of the above
Answer:- D
Question:- Name the organs that make up the excretory system in humans? A. Two Kidneys B. Two Ureters C. Bladder and Urethra D. All of the above
Answer:- D
Question:- Which vessel carries blood to the kidneys? A. Renal Arteries B. Renal Vein C. Both A and B D. Only A
Answer:- D