0
Why would a plant be put in the dark before doing an experiment for photosynthesis?
so that it cannot make any nutrients/energy from photosynthesis (because there is no light), therefore all its nutrients are used up before the experiment begins....so it is a reliable test (nutrients made by photosynthesis before experiment would cause unreliable results because it wouldn't give proof that light is needed for photosynthesis to occur)
What else can I help you with?
What is a control of a science experiment?
For instance, if you wanted to experiment on plant a, plant b, and plant c. You would put plant c to one side, treat it like a normal plant (water, feed, etc.) and call that the control. You could then experiment on plant a and plant b - feeding them differing fertilisers, allowing pests to attack the plants, and so on. At the end of the experiment, you could compare the growth of plant a and plant b to the control plant c. Though plants are mentioned above, the principle relates to any experiment - you need a control to compare against the end results of the experiment.
Why is it so important to control variables in an experiment?
You need to control variables in an experiment so as to make sure that only the variable you are testing and changing is the one affecting the results of your experiment. For example, in an experiment to find the effect of light intensity on the rate of photosynthesis of plant, you'll change light by putting a plant in sun and another in dark but you must not change carbon dioxide level for both plants so by that you have controlled other variables in the experiment(variables which must be the same always in the experiment).
The blank variable is the part of the experiment that is affected by the independent variable?
The independent variable is the part of the experiment that is being tested or the part that is changed by the person doing the experiment. The dependent variable is the part of the experiment that is affected by the independent variable.
Why is the Bulb of the onion plant so big?
It is big because before leaves sprout, the bulb is the source of food because without leaves, there is no photosynthesis thus no food unless the bulb feeds the plant (which as I said before, it does). The bulb of the onion also stores energy. Hope this satisfies!
Why Scientist redo their experiment?
In an experiment, there are many variables (things that can't be controlled). For an accurate result, experiments must be done many times over to so that a pattern can be seen, giving scientists an idea of what the result is. For example, if you tested how music affected plant growth, and tested it once, if the plant died because of other causes, it could seem like the music affected the plant. By doing the experiment many times and seeing no affect on the majority of the plants, the scientists would see that music has no affect on plant growth. Scientists redoing experiments is to ensure that the results are credible.
Why to destarch a plant?
a leaf (plant) should be destarched before photosynthesis investigations because the starch already present in the plant may mislead the result . hence if a destarched plant is used for the experiment then the amount of starch present at the time of the experiment will be nil and affter the experiment is compleded the amount of starch present in the leaves woul give the rate of photodynthesis as starch id prepared during photosynthesis
Why is it necessary to place a plant in dark before starting a experiment on photosynthesis?
Glucose formation take place efficiently in dark. This does not need light.
What gas goes into the plant before photosynthesis occurs?
The gas that goes into the plant before photosynthesis occurs is carbon dioxide.
What photosynthesis occurs in a plant?
it is the chloroplasts. They are doing it better.
In an experiment the hypothesis is If the wavelength of the light shining on a plant is shortened the rate of photosynthesis is slowed down. If this experiment is performed the independent variable .?
The independent variable in this experiment is the wavelength of the light. This is because it is being manipulated or changed by the researcher to observe its effects on the rate of photosynthesis in the plant.
What is a simple photosynthesis experiment that can be conducted to demonstrate the process of photosynthesis?
One simple photosynthesis experiment is to place a small plant in a clear plastic bag with a small amount of water and seal it. Place the bag in sunlight for a few hours. The plant will release oxygen during photosynthesis, which can be observed as bubbles forming in the water. This demonstrates how plants use sunlight to produce oxygen.
What are plant producers capable of doing because of their additional parts?
They can perform photosynthesis.
Do blueberries do photosynthesis?
Yes they do it. blueberry is a green plant. So it is doing that.
In an experiment the hypothesis is If the wavelength of the light shining on a plant is shortened the rate of photosynthesis is slowed down. If this experiment is performed the dependent variable?
The dependent variable in this experiment would be the rate of photosynthesis, as it is the outcome that is being measured and is expected to change based on the manipulation of the independent variable, which is the wavelength of the light.
How can one measure photosynthesis at home?
One way to measure photosynthesis at home is by using a simple experiment with a plant, water, and a light source. By measuring the amount of oxygen produced by the plant during photosynthesis, you can indirectly measure the rate of photosynthesis. This can be done by collecting the oxygen bubbles released by the plant in a container and measuring the volume of gas produced over a period of time.
A plant must light energy before it can be used for photosynthesis?
absorb
In an experiment the hypothesis is If the wavelength of the light shining on a plant is shortened the rate of photosynthesis is slowed down. If this experiment is performed the dependent variable . wi?
The dependent variable in this experiment would be the rate of photosynthesis. This is the variable that is being measured and is expected to change in response to the manipulation of the independent variable, which is the wavelength of light.
