Why is it hard to find the ideal CO2 level If the light intensity

It would be difficult to find the ideal CO2 level with a low light intensity because the plant will have a difficult time trying to survive. It would be very hard considering with no light there’s no reaction.

Why would it be so hard to find the ideal light intensity if the temperature were very hot or cold?

The highest light intensity and CO2 level will maximize the rate of photosynthesis. Why would it be hard to find the ideal light intensity if the temperature were very hot or cold? If the temp were extremely hot or cold, then oxygen production would be near zero no matter what light intensity value you use.

How does light intensity affect the rate of photosynthesis?

As you rise from low light intensity to higher light intensity, the rate of photosynthesis will increase because there is more light available to drive the reactions of photosynthesis. … At a very high intensity of light, the rate of photosynthesis would drop quickly as the light starts to damage the plant.

How does light intensity affect carbon dioxide?

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 carbon dioxide uptake occurs. The graph shows this increase in carbon dioxide uptake.

Why would it be hard to find the ideal CO2?

It would be difficult to find the ideal CO2 level with a low light intensity because the plant will have a difficult time trying to survive. It would be very hard considering with no light there’s no reaction.

Why does CO2 assimilation rate level off at higher light intensity?

At higher light intensities (plateau of graph), further increasing the light intensity does not increase the rate of photosynthesis meaning that another factor is limiting photosynthesis. … This shows that the carbon dioxide level has an effect and is now limiting the rate of photosynthesis.

How does CO2 level affect oxygen production?

How does CO2 level affect oxygen production? increasing CO2 production increases oxygen production. … Greater flow of oxygen corresponds to a higher rate of photosynthesis.

What is the ideal light intensity for photosynthesis?

The rate of photosynthesis peaks (see graph below) in most plants around 450 nm (blue light) and 650 nm (red light). Plants require a reasonably balanced spectrum in this range. Red light alone produces soft growth and long internodes. Blue light alone results in short, hard plants.

Why does light intensity affect the rate of transpiration?

FactorEffectExplanationLight intensityIncreasedThe stomata open wider to allow more carbon dioxide into the leaf for photosynthesis

Why does carbon dioxide concentration affect the rate of photosynthesis?

Carbon dioxide and rate of photosynthesis An increase in the carbon dioxide concentration increases the rate at which carbon is incorporated into carbohydrate in the light-independent reaction, and so the rate of photosynthesis generally increases until limited by another factor.

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How does increased co2 affect photosynthesis?

Studies have shown that higher concentrations of atmospheric carbon dioxide affect crops in two important ways: they boost crop yields by increasing the rate of photosynthesis, which spurs growth, and they reduce the amount of water crops lose through transpiration. … During that process they release water vapor.

What is the ideal co2 level for photosynthesis?

For most crops the saturation point will be reached at about 1,000–1,300 ppm under ideal circumstances. A lower level (800–1,000 ppm) is recommended for raising seedlings (tomatoes, cucumbers and peppers) as well as for lettuce production.

What is the ideal conditions for photosynthesis?

A plant is provided with ideal conditions for photosynthesis when it has just the right amounts of the things it needs: water, carbon dioxide and sunlight.

How does light intensity affect oxygen production?

Oxygen production increased as the light intensity increased due the greater availability of light energy for photosynthesis.

How does light intensity affect oxygen production hypothesis?

When the light intensity is increased, the rate of bubble production should increase. … In this experiment, the light intensity is changed, by decreasing the light intensity. The rate of photosynthesis should decrease and therefore the amount of oxygen bubbles should decrease.

How does light intensity affect photosynthesis quizlet?

As light intensity increases (distance between lamp and plant decreases) the volume of oxygen (or the rate of bubble production) increases. This indicates that the rate of photosynthesis increases with light intensity.

Why does the rate of photosynthesis decrease at higher temperatures?

Photosynthesis is an enzyme specific process. All enzymes act at an optimum temperature (i. e.,25−35∘C). if temperature increases, enzyme gets denatured, thus leading to a fall in the rate of photosynthesis.

Why does heat stress lead to a decrease in the light independent reaction?

Explain why this leads to a decrease in the light-independent reaction? A decrease in the activity of the enzyme rubisco would limit the rate of photosynthesis. … The scientists concluded that heat stress reduces the activity of rubisco in plant leaves by affecting rubisco activase.

How does light intensity and the rate of photosynthesis relate to the position of the sun?

The rate of photosynthesis relies on light intensity because when sunlight is limited, so is photosynthesis. This means that in the winter (when there are less hours of sunlight) and at night (when there is no sunlight at all), there is less photosynthesis.

Does carbon dioxide affect the rate of transpiration?

In terms of transpiration, or plant water use, an increase in atmospheric CO2 means that stomata, or the pores on leaves that exchange gases between the leaf and the atmosphere, do not need to open as much. This means that, at the scale of a leaf, less water is lost and there is lower transpiration.

Why does wind increase the rate of transpiration?

It is easier for water to evaporate into dryer air than into more saturated air. Wind and air movement: Increased movement of the air around a plant will result in a higher transpiration rate. Wind will move the air around, with the result that the more saturated air close to the leaf is replaced by drier air.

Why the rate of transpiration is more if the velocity of wind is more?

The rate of transpiration depends on various factors like humidity, temperature, sunlight, atmospheric pressure and wind speed. As the wind blows faster, the water released by transpiration is carried away faster. So, rate of transpiration increases with velocity of wind speed.

What happens to plants if CO2 levels increase?

Under elevated CO2 most plant species show higher rates of photosynthesis, increased growth, decreased water use and lowered tissue concentrations of nitrogen and protein. Rising CO2 over the next century is likely to affect both agricultural production and food quality.

Why co2 levels are increasing?

Carbon dioxide concentrations are rising mostly because of the fossil fuels that people are burning for energy. … For 2018 alone, global fossil fuel emissions reached 10 ± 0.5 Pg C yr−1 for the first time in history (Friedlingstein et al. 2019). About half of the CO₂ emitted since 1850 remains in the atmosphere.

What causes co2 levels to rise?

On Earth, human activities are changing the natural greenhouse. Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.

How light and CO2 affect the photosynthesis?

Photosynthesis increases as CO2 increases until some saturating concentration, which is typically around 1,000 ppm. Enriching the air with CO2 enables plants to more effectively utilize light, resulting in an increase in the light saturation point.

What was the ideal light intensity for maximal oxygen production?

The effect of light intensity followed a Michealis-Menten curve where increases in light intensity corresponded to increases in oxygen production until a peak in oxygen production occurred at a light intensity of 6000 lux.

How would the light intensity affect the amount of carbon dioxide in the water?

Answer: If there is enough water, carbon dioxide, and the temperature is right, light becomes the factor which will affect photosynthesis. Most of the time, when the intensity of light is high, you will get a a greater rate of photosynthesis.

What affects the intensity of light?

Light intensity rapidly decreases as the distance from the light source increases. Window direction in a home or office affects the intensity of natural sunlight that plants receive. Southern exposures have the most intense light.