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| Name | Keywords & Exercises Class 7 Science Ch-10 Respiration in Organisms |
| Video Uploader | Video From MASTER JI |
| Upload Date | This Video Uploaded At 28-11-2021 06:33:58 |
| Video Discription | #masterji2020 NCERT Solutions for Class 7 Science Chapter 10 Respiration in Organisms Complete exercise of Class 7 Science Chapter-10 Respiration in Organisms Find all q/a questions and answers in a simple way. For chapter, reading go through the link below The complete playlist of Chapter 10 Respiration in Organisms https://youtube.com/playlist?list=PLh_kGwVUA3EYu5diNdwvuLE6HgPQcEHHu Class 7 NCERT Science Chapter 10 question and answers 00:00 Keywords questions and answers class 7 science chapter 10 00:22 what is Aerobic respiration? 00:55 what is Anaerobic respiration? 01:25 what is the Breathing rate? 02:14 what is Cellular respiration? 02:37 what is Diaphragm? 03:18 what is Exhalation? 03:42 what is Gills? 04:23 what are Lungs? 05:04 what is Inhalation? 05:21 what is Spiracles? 06:01 What is Tracheae? 06:51 What are ribs? 07:34 class 7 science chapter 10 question 1 09:09 class 7 science chapter 10 question 2 10:46 class 7 science chapter 10 question 3 11:50 class 7 science chapter 10 question 4. 13:19 class 7 science chapter 10 question 5. 15:40 class 7 science chapter 10 question 6. 16:44 class 7 science chapter 10 question 7 18:17 class 7 science chapter 10 question 8 21:26 class 7 science chapter 10 question 9 1. Why does an athlete breathe faster and deeper than usual after finishing the race? 2. List the similarities and differences between aerobic and anaerobic respiration. 3. Why do we often sneeze when we inhale a lot of dust-laden air? 4. Take three test-tubes. Fill ¾th of each with water. Label them A, B and C. Keep a snail in test-tube A, a water plant in test-tube B and in C, keep snail and plant both. Which test-tube would have the highest concentration of CO2? 5. Tick the correct answer: (a) In cockroaches, air enters the body through (i) lungs (ii) gills (iii) spiracles (iv) skin (b) During heavy exercise, we get cramps in the legs due to the accumulation of (i) carbon dioxide (ii) lactic acid (iii) alcohol (iv) water (c) Normal range of breathing rate per minute in an average adult person at rest is: (i) 9–12 (ii) 15–18 (iii) 21–24 (iv) 30–33 (d) During exhalation, the ribs (i) move outwards (ii) move downwards (iii) move upwards (iv) do not move at all 6. Match the items in Column I with those in Column II: Column I Column II (a) Yeast (i) Earthworm (b) Diaphragm (ii) Gills (c) Skin (iii) Alcohol (d) Leaves (iv) Chest cavity (e) Fish (v) Stomata (f) Frog (vi) Lungs and skin (vii) Tracheae 7. Mark ‘T’ if the statement is true and ‘F’ if it is false: (i) During heavy exercise the breathing rate of a person slows down. (T/F) (ii) Plants carry out photosynthesis only during the day and respiration only at night. (T/F) (iii) Frogs breathe through their skins as well as their lungs. (T/F) (iv) The fishes have lungs for respiration. (T/F) (v) The size of the chest cavity increases during inhalation. (T/F) 8. Given below is a square of letters in which are hidden different words related to respiration in organisms. These words may be present in any direction— upwards, downwards, or along the diagonals. Find the words for your respiratory system. Clues about those words are given below the square. (i) The air tubes of insects (ii) Skeletal structures surrounding chest cavity (iii) Muscular floor of chest cavity (iv) Tiny pores on the surface of leaf (v) Small openings on the sides of the body of an insect (vi) The respiratory organs of human beings (vii) The openings through which we inhale (viii) An anaerobic organism (ix) An organism with tracheal system 9. The mountaineers carry oxygen with them because: (a) At an altitude of more than 5 km there is no air. (b) The amount of air available to a person is less than that available on the ground. (c) The temperature of air is higher than that on the ground. (d) The pressure of air is higher than that on the ground. |
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