What are the factors affecting rate of photosynthesis?

Three factors can limit the rate of photosynthesis: light intensity, carbon dioxide concentration and temperature.

  • Light intensity. Without enough light, a plant cannot photosynthesise very quickly – even if there is plenty of water and carbon dioxide.
  • Carbon dioxide concentration.
  • Temperature.

What are the 4 factors that can affect the rate how fast of photosynthesis?

Several factors can affect the rate of photosynthesis: light intensity. temperature….Factors affecting photosynthesis

  • the rate of oxygen output.
  • the rate of carbon dioxide uptake.
  • the rate of carbohydrate (glucose) production.

What are five factors that could affect the rate of photosynthesis?

The environmental factors which can affect the rate of photosynthesis are carbon dioxide, light, temperature, water, oxygen, minerals, pollutants and inhibitors. 1. Effect of Carbon dioxide: Being one of the raw materials, carbon dioxide concentration has great effect on the rate of photosynthesis.

How does light intensity affect the rate of photosynthesis a level?

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 heat affect photosynthesis?

High Temperatures At temperatures above 68 degrees Fahrenheit, or 20 degrees Celsius, the rate of photosynthesis decreases because the enzymes do not work as efficiently at this temperature. This is despite the increase of carbon dioxide diffusion into leaves.

What 4 factors affect photosynthesis?

What factor most affects the rate of photosynthesis? The main variables which affect photosynthesis are light, water, CO2 concentration and temperature.

What is photosynthesis rate?

The rate of photosynthesis is a gross measure of the rate at which a plant captures radiant energy and fixes it in organic carbon compounds. The compensation point is the intensity of PAR at which the gain from gross photosynthesis exactly balances the respiratory and other losses.

Does heat speed up photosynthesis?

Temperature The higher the temperature then typically the greater the rate of photosynthesis, photosynthesis is a chemical reaction and the rate of most chemical reactions increases with temperature. However, for photosynthesis at temperatures above 40°C the rate slows down.

How is the rate of photosynthesis expressed what factors affect the photosynthetic rate?

Light intensity Without enough light, a plant cannot photosynthesise very quickly – even if there is plenty of water and carbon dioxide and a suitable temperature. Increasing the light intensity increases the rate of photosynthesis , until some other factor – a limiting factor – becomes in short supply.

What does not affect the rate of photosynthesis?

Photosynthesis is affected by light, temperature, water, and CO2. Stomata affect the process of transpiration and do not affect photosynthesis.

How does heat affect the rate of photosynthesis?

What are the three main factors that affect the rate of photosynthesis?

4. The three main things affecting the rate of photosynthesis are: Light Temperature Carbon dioxide These three factors are called LIMITING FACTORS. 5. • Law of limiting factors: “The overall rate of the process will be limited by the factor which is at the least favorable value”

How does the compensation point affect the rate of photosynthesis?

For shade-adapted plants, the compensation point is lower – their rate of photosynthesis will exceed the rate of respiration at lower light intensities than the plants adapted to sun.

Why is the rate of photosynthesis rising in the UK?

The rate of photosynthesis will also change during the year in countries like the UK. Levels of carbon dioxide in the atmosphere are rising because of greenhouse gas emissions. They are currently at around 0.04 per cent. This concentration is still very low in terms of being the optimum for photosynthesis.

How can we test the rate of photosynthesis?

To test the light intensity, an elodea submerged in a beaker was placed at different measurement away from the plant, to see if oxygen (bubbles) is produced. To test the availability of nutrients, different molarities of Sodium Bicarbonate was diluted in 500 ml of water with Elodea, to see if rate of photosynthesis increased or decreased.

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