The diagrams given below represent the relationship between a mouse and a physiological process

Human Physiology (10)

The diagrams given below represent the relationship between a mouse and a physiological process that occurs in green plants. Study the diagrams and answer the questions that follow:

  1. Name the physiological process occurring in the green plant that has kept the mouse alive.
  2. Explain the physiological process mentioned above.
  3. Why did the mouse die in bell jar B?
  4. What is the significance of the process as stated in (i) for life on earth.
  5. Represent the above mentioned physiological process in the form of a chemical equation.

Answer

  1. Photosynthesis
  2. It is a process by which plant cells containing chlorophyll prepare food / glucose from CO2 and water using sunlight.
  3. O2 was used up by the burning candle. Mouse dies due to lack of oxygen / asphyxiation.
  4. – Provides food for all organisms
    – Provides O2 for respiration.
Exam Year: 2017