Products of Photosynthesis

1) Why Do Leaves Change Their Colours During Fall?

• Plants generally shed their leaves during autumn and winter.
• Due to changes in temperature and daylight, the chlorophyll in the leaf starts disintegrating. As a result, the colour of the leaves changes.
• As the green colour of chlorophyll fades, the yellow and orange colours of other pigments found in the leaf become prominent.

2) Do Plants Release Carbon Dioxide?

• Plants release carbon dioxide during respiration throughout the day and night.
• During the day, the rate of release of oxygen is more as compared to carbon dioxide due to the process of photosynthesis.
• At night in the absence of photosynthesis, the rate of release of carbon dioxide increases.