SawaalBoxसवाल बॉक्स
2000 · Q123Science & TechnologyBiologyeasy

The sensation of fatigue in the muscles after prolonged strenuous physical work is caused by

  1. (a)a decrease in the supply of oxygen
  2. (b)minor wear and tear of muscle fibres
  3. (c)the depletion of glucose
  4. (d)the accumulation of lactic acid
Show answerHide answer

Official answer(d) the accumulation of lactic acid

2020 · Q47Science & TechnologyBiologyeasy

Which of the following statements are correct regarding the general difference between plant and animal cells ? 1. Plant cells have cellulose cell walls whilst animal cells do not. 2. Plant cells do not have plasma membrane unlike animal cells which do. 3. Mature plant cell has one large vacuole whilst animal cell has many small vacuoles. Select the correct answer using the code given below :

  1. (a)1 and 2 only
  2. (b)2 and 3 only
  3. (c)1 and 3 only
  4. (d)1, 2 and 3
Show answerHide answer

Official answer(c) 1 and 3 only