Greg Foot explains the effect of temperature, light intensity and carbon dioxide concentration on the rate of photosynthesis.

More oxygen bubbles are produced when the light is closer to the beaker. So a greater light intensity gives a greater rate of photosynthesis.

1. Cut the stem of a bubbling pond weed which has been well illuminated to about 5cm. · 2. Place the test tube in the beaker of water and note the temperature.

18 сент. 2024 г. · Investigating Photosynthesis · measure the volume of oxygen produced by the pondweed as the light intensity changes as the light source is moved.

By placing the pondweed in a hydrogen carbonate solution that has had sodium hydrogen carbonate added until it turns yellow, we can see how light vs dark ... Photosynthesis Refresher · Investigate the Rate of...

The experiment requires students to investigate the rate of photosynthesis by measuring the amount of oxygen produced by an aquatic pondweed within a given time ...

8 июн. 2022 г. · Light intensity – change the distance (d) of a light source from the plant (light intensity is proportional to 1/d2); Carbon dioxide ...

Продолжительность: 3:18
Опубликовано: 23 окт. 2022 г.

An increase in light intensity will produce an increase in the rate of photosynthesis until a level of light intensity is reached. [normally 38% 1] above which ...

Increasing the light intensity will increase the rate of photosynthesis provided there is sufficient carbon dioxide available and provided the temperature is ...