Question

natural light

no light

grow light

Juestions to consider: 1. How do the three different light levels affect the rate of photosynthesis in C3 plants? a. In C4 plants? 2. Were the photosynthetic rates different between C3 and C4 plants? a. Was this more dramatic at any of the light levels? - 3. You did not use temperature as a variable in any of your analyses but you still collected data on it. Why is it still important to monitor the temperature? 4. Recall CAM plants from BIOL 141. How would a CAM plant behave differently if we had used it in this experiment?

Answer 1

ANSWER 1:

NATURAL LIGHT

C4 plants make more proficient utilize of accessible light than C3 plants, even at high temperatures. This makes C4 plants especially effective in regions with natural light. In natural light,a small amount of fraction is used by the C3 plant to convert CO2 into carbohydrates. On the other hand, C4 plants use the natural light for the continuous turning of CO2 to carbohydrates.

NO LIGHT

Photosynthesis does not occur if there is no light.

GROW LIGHT

Grow light is uneven or too little or too much light and might provide too much heat, which hamper in the photosynthesis in C4 and C3 plants. Also, plants primarily use red and blue light for photosynthesis, therefore multiple lights need to be used which will eventually cost high and require more space.