Question

CONCLUSIONS: What inputs are required for photosynthesis to produce oxygen and glucose?

CONCLUSIONS: A student replicates all the variables of the first experiment, except she puts the plant in a sealed jar without oxygen but with carbon dioxide. How do you think that would affect her results?

CONCLUSIONS: Based on the molecules involved in photosynthesis, what do you think would happen to the rate of photosynthesis if the carbon dioxide level in the plant light box was increased?

CONCLUSIONS: Based on your results from these experiments, explain why aquatic plants are only found relatively close to the ocean surface.

CONCLUSIONS: If the light intensity could be increased beyond the value of 5 without limit, what do you think would happen to the rate of photosynthesis? Why?

Answer 1

1.The inputs required for photosynthesis to produce oxygen and glucose are water, carbon dioxide and photon energy. Here six molecules of water and six molecules of carbon dioxide will produce 1 molecule of glucose.

2.If the plant is placed in the sealed jar without oxygen and with CO2 , then the plant will suffocate. Because like all other organism the plant also needs oxygen to respire ( aerobic respiration- takes oxygen and release CO2) . In the closed jar without oxygen the plant will take more oxygen than they produced in the photosynthesis ( takes CO2 and release O2)

3.If the CO2 level in the jar is high the photosynthesis will linearly increase with level of CO2. Then the photosynthetuc rate will fall and stays in constant rate. That means no increase and no decrease. Level of CO2 has no effect on the rate of photosynthesis.

4.Aquatic plants are seems more closer to the ocean surface. Because light, oxygen, CO2 and another inputs relatively higher in sea surface than the bottom. So the planta prefer surface zone and increasing the level of photosyntheis .

5.If emitting the light intensity beyond the value of 5 without limit will helps to increase the photosynthetic rate until the limiting factor become in short supply. The limiting factor could be the amountbof chlorophyll molecule that can absorb the light