Question

17. Read the following and answer any FOUR questions from 17 (i) to 17 (v) The food material taken in during the process of nutrition is used in cells to provide  energy for various life processes. Diverse organisms do this in different ways – some  use oxygen to break-down glucose completely, some use other pathways that do not  involve oxygen.  1 x4 17-i Name the two ways in which glucose is oxidised to provide energy in various  organisms. a. Aerobic respiration and Anaerobic respiration b. respiration and breathing  c. fermentation and breathing  d. none of the above. 17-ii The characteristic processes observed in anaerobic respiration are A. presence of oxygen_ B. release of carbon dioxide_ C. release of energy  D. release of lactic acid a. A and B only b. A,B,C only c. B, C, D only d. D only. 17-iii Fatigue in muscles occurs due to  a. aerobic respiration  b. anaerobic respiration  c. anaerobic fermentation  d. breathing 17-iv Break- down of pyruvate using oxygen takes place in the  a. Mitochondria b. Cytoplasm c. Chloroplast d. Golgi apparatus 17-v In humans, however, we respire anaerobically when the heart and lungs cannot work  fast enough to provide enough oxygen around the body to  break down the glucose. This causes formation of: a. Ethanol b. Carbon dioxide  c. Lactic acid  d. All the above brainly​

Answer 1

Answer:

17-i a) aerobic respiration and anaerobic respiration

17-ii c) B,C,D only

17 iii b) anaerobic respiration

17 iv a) mitochondria

Answer 2

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