Biology College

Controlled variable - the variable that is kept the same during a scientific experiment.
We want to investigate the correlation between the light intensity and the rate of photosynthesis.
We can adjust the amount of light intensity by moving the lamp near or far from the aquatic plant.
We can also measure the amount of gas produced by photosynthesis in one minute.
(1) What is the independent variable in this experiment?
(2) What is the dependent variable in this experiment?
(3) What are the controlled variables in this experiment?
(4) What will be observed if the photosynthesis is happening more slowly?
I (5) What can you conclude from this experiment?

Answers

Answer 1

1. Independent variable = light intensity

2. Dependent variable = rate of photosynthesis

3. Controlled variables a= other variables - independent and dependent

4. Low amount of gas will be produced

5. Light intensity has a correlation with the rate of photosynthesis

Experimental variables in photosynthesis

During photosynthesis, carbon dioxide and water combine to form carbohydrates in the presence of solar radiation. The process in specific to green plants only and oxygen is evolved as a by-product. The higher the amount of oxygen produced, the higher the rate of photosynthesis.

Independent variables in experiments are the variables supplied directly by the experimenter which can be manipulated to see if it produces any effect or outcome.

The dependent variables are variables that measure the effect of the independent variable.

The remaining variables apart from dependent and independent variables are controlled variables.

From the experiment investigating the effects of light intensity on the rate of photosynthesis, all other things being constant, the more the light intensity, the more the rate of photosynthesis.

More on photosynthesis can be found here: https://brainly.com/question/1388366

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