As light intensity increases the rate of photosynthesis

Investigation on how light intensity affects the rate of Photosynthesis Essay Sample

Temperature As with other chemical reactions, the rate of photosynthesis increases as the temperature rises. I am not sure what you mean by "level" of light, but I will answer your question in to ways - in terms of the intensity of light and wavelength of light. Respiration uses oxygen and produces carbon dioxide.

In practical terms, this means that when the light is moved twice as far from the plant it will receive a quarter of the energy. This so the large volume of water in the beaker maintains a constant temperature around the pond weed.

We know it is not carbon dioxide because any further increase in carbon dioxide does not increase the rate of photosynthesis. The structure of this molecule creates different energy fields for the electrons in the aromatic ring.

This is an example of how increasing one factor sunlight can lead to another factor water being limiting.


Does light affect germination rate? If there is enough water, carbon dioxide, and the temperature is right, light becomes the factor which will affect photosynthesis. The final products of the anaerobic respiration are nutrients, ethanol and carbon - dioxyde.

I hope that you continue to investigate this as the story gets more interesting and exciting the deeper you go. How is the rate of photosynthesis affected by CO2? With too little light, photosynthesis cannot occur either and the plant suffers without the production of sugars.

Photosynthesis, specifically the light reactions, require light to occur. At a very high intensity of light, the rate of photosynthesis would drop quickly as the light starts to damage the plant.

At the start of the experiment the lamp is positioned 1m from the pond weed and the number of gas bubbles produced is recorded. Graph showing rate of photosynthesis and temperature Light intensity Investigating light intensity Light provides the energy needed for photosynthesis.

The maximum rate is determined by the other factors involved. More light is actually a problem if water is scarce, because even more water will evaporate from the plant. Some woodland plants photosynthesize more efficiently in dim light and are so called shade plants.

If the pH is too acidic or too basic, the rate at which photosynthesis occurs will decrease. Factors affecting the rate of photosynthesis 1. At low temperatures, the rate of photosynthesis is limited by the number of molecular collisions between enzymes and substrates.

As light intensity increases, what happens to the rate of photosynthesis?

If you look at a spectrum from nmnm. What information from the graph can be used as evidence for this?

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However, light intensity can only increase up to a certain point before the rate of photosynthesis no longer increases. Plants are green because they reflect green light more than any other part of the color spectrum, therefore if a plant is only exposed to green light it will reflect more than if it were placed under a red light thereby making photosythensis less efficient.

With light present the pond weed undertakes photosynthesis and gives of oxygen gas which can be seen as bubbles. The pond weed is weighted down with a paperclip to ensure it remains fixed in position.

The rate of photosynthesis increases linearly with increasing light intensity from point A to B on the graph.

The light intensity for the lamp can be calculated using the formula: As with any other enzyme-controlled reaction, the rate of photosynthesis is affected by temperature.

Photosynthesis needs light, but it also needs other things, and too much light can create heat and dryness that are bad for photosynthesis. Research question Due to the fact that most plants have no appropriate apparatus to ingest and digest food, they have to obtain it by themselves using simple ingredients.

Increasing the light intensity increases the rate of photosynthesis, provided plenty of carbon dioxide and water are available. The affect of light on photosynthesis can be investigated using the experimental setup shown.

Graph showing rate of photosynthesis and carbon dioxide concentration Question What is limiting the rate of photosynthesis at points A and B on the graph? It also shows that the rate at which photosynthesis levels out is dependent upon other factors—both plants in 0. So the carbon dioxide uptake increases.

This is because photosynthesis involves the operation of enzymes, which are affected by many factors, such as changes in pH. Carbon sources are used to provide carbon as a macronutrient to micro-organisms to enable them to grow and reproduce rapidly Leaves with more chlorophyll are better able to absorb the light required for photosynthesis.As light intensity increases, the rate of photosynthesis will increase as long as other factors are in adequate supply.

As the rate increases, eventually another factor will come.

How does light affect the rate of reaction?

The rate of photosynthesis increases linearly with increasing light intensity (from point A to B on the graph). Gradually the rate falls of and at a certain light intensity the rate of photosynthesis stay constant (from point B to C on the graph).

As the light intensity increases the rate of photosynthesis follows (point B on the graph). This means more carbon dioxide is being absorbed by the plant for photosynthesis.

So this means more. Does Light Intensity increase the Rate of Photosynthesis? then the rate of photosynthesis increases. Graph Results were specifically Elodeas which is a type of pond weed. Michael states that a higher light intensity would increase the rate of photosynthesis, however, Reona disagrees.

- temperature increases then the rate increases because there is an increase in molecular collisions - at a certain temperature the enzyme will denature and the rate of photosynthesis will decline (hill shaped graph) what is the rate of photosynthesis controlled by -increase of light intensity increase the rate of photosynthesis to a.

As light intensity increases, so does the rate of photosynthesis, up until a point. Photosynthesis, specifically the light reactions, require light to occur. The light's photons excite the electrons in the pigments of the photosystems which activates the light reactions portion of photosynthesis.

The more light there is, the more photosystems in .

As light intensity increases the rate of photosynthesis
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