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Engelmann's experiment determined which wavelengths of light are most effective at causing photosynthesis In other words Engelmann measured?
Wiki User
∙ 13y ago
blue and red.
Wiki User
∙ 13y ago
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What gas do bubbles contain if there is an experiment wether pondweed still has as much photosynthesis underwater?
Carbon Dioxide :)
Which best explains the role of chlorophyll in photosynthesis?
i don't know someone answer thi question for me please
Why is hydrilla stem cut underwater in photosynthesis experiment?
Cutting the stem of hydrilla underwater can prevent air bubbles blocking the xylem.
Can plant carry out photosynthesis using artificial light?
Plants cannot make photosynnthesis it is the process of making food. But a plant could make food with torchlight as long as it has soil and the nutrients it needs to survive aswell. It may not grow properly though. Why don't you try an experiment to conclude I am right.
Why it is not possible to demonstrate respiration in a green plant kept in sunlight?
We can't demonstrate an experiment of green plants because if sunlight is present the co2 produced in respiration will be used in photosynthesis. So we must conduct an experiment of green plants in a dark room.
Why does white sunlight make a bad control group for a colored light experiment on plant growth?
White sunlight contains all the wavelengths of visible light. Hence photosynthesis will always occur in it. That means it can not tell for contribution or non contribution of a particular wavelength in photosynthesis
Why does a mean need to be determined for an experiment?
In an experiment, a mean needs to be determined if the experiment is quantifiable. The mean usually indicates the variation in the results.
Why do we use filters in planck's constant experiment?
we use a broad source of visible wavelengths from the lamp. These were then filtered to a variety of narrow bands of wavelengths (from placing different filters in the apparatus)
What is the conclusion for experiment pollen germination?
The conclusion is what happens during the experiment. In this experiment it was determined that the germination would produce certain plants.
A probability found as a result of an experiment?
Probability determined as part of an experiment is called experimental probability. Probability determined by analysis of all of the possible and expected outcomes is called theoretical probability.
Why is leaf soaked in warm alcohol?
To kill it. Then the experiment for 'photosynthesis' can take place.
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
A random variable is a numerical value that is determined by the outcome of an experiment?
Flase
What was Jan ingenhousz hypothesis of photosynthesis before doing the experiment?
Plants need sunlight!
Is a testable hypotheses?
One where the validity of the hypothesis can be determined by some test or experiment.
Why did PH change during the light experiment?
Because the Photosynthesis added carbon dioxide to the water
What did Theodor W. Engelmann discover?
Theodor W. Engelmann discovered through a now classic experiment that the wavelengths of light have an affect on photosynthesis, more specifically that violet-blue and red portions of the visible spectrum are most effective in driving photosynthesis.He discovered this by illuminating a filamentous alga with light shone through a prism. This exposed segments of the alga to different wavelengths. Engelmann then used aerobic bacteria to determine which segments of the alga produced the most oxygen and thus photosynthesized the most as the bacteria would concentrate around that area. He noticed that they concentrated mostly around the violet-blue portions and towards the red portions and was thus able to conclude that these sections were most effective in photosynthesis. Not bad for an experiment done in 1883!
