What is the optimum temperature for photosynthesis and why?

What is the optimum temperature for photosynthesis and why?

Optimal temperatures for GROSS photosynthesis in plants are 15-40°C, but above ~10°, dark respiration goes up and NET photosynthesis goes down (Fig.).

What is the optimum temperature for plants?

Some plant seeds, including cool season vegetables like lettuce and broccoli, germinate best in temperatures between 55 and 70 degrees F. (13-21 C.), while warm season plants such as squash and marigolds, germinate best when temperatures are between 70 and 85 degrees F.

What is the optimal conditions for photosynthesis?

To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.

What is the optimum temperature for enzymes?

around 37 oC
As the temperature is increased enzyme activity increases to a maximum value at the optimum temperature (around 37 oC for most human enzymes).

What is the optimum temperature of seed germination?

Optimum temperature for seed germination 25oC to 35oC.

Is 30 Celsius good for plants?

Most plants will do best between 24-27 degrees Celsius or 75-80 degrees Fahrenheit during the day time or when lights are on. In gardens where CO2 is being supplemented, the ideal temperatures increase to 30 degrees Celsius or 85 degrees Fahrenheit in order to get the most benefit out of the CO2 supplementation.

What is the optimum temperature for seed germination?

How does temp affect photosynthesis GCSE?

As temperature increases the number of collisions increases, therefore the rate of photosynthesis increases. However, at high temperatures, enzymes are denatured and this will decrease the rate of photosynthesis.

How does temperature affect the rate of photosynthesis?

Temperature. As with any other enzyme-controlled reaction, the rate of photosynthesis is affected by temperature. At low temperatures, the rate of photosynthesis is limited by the number of molecular collisions between enzymes and substrates. At high temperatures, enzymes are denatured .

What is optimum pH and temperature in enzymes?

Each enzyme work bests at a specific pH value. The optimum pH for an enzyme depends on where it normally works. For example, enzymes in the small intestine have an optimum pH of about 7.5, but stomach enzymes have an optimum pH of about 2. In the graph above, as the pH increases so does the rate of enzyme activity.

Why is the optimum temperature for enzymes 37?

This optimal temperature is usually around human body temperature (37.5 oC) for the enzymes in human cells. Above this temperature the enzyme structure begins to break down (denature) since at higher temperatures intra- and intermolecular bonds are broken as the enzyme molecules gain even more kinetic energy.

How temperature affects the rate of germination?

Temperature affects germination in three primary ways: moisture, hormone production, and enzyme activity. For seeds to germinate, they need to imbibe water. For this to occur, sufficient moisture must be present. A warmer climate may increase evaporation and decrease moisture, which would negatively affect germination.

Why is temperature important for photosynthesis?

At low temperature, the enzyme does not have enough energy to meet many substrate molecules, so the reaction is slowed. When the temperature rises, the particles in the reaction move quicker and collide more, so the rate of photosynthesis rises also. At the optimum temperature, the enzyme is most efficient and the rate if maximum.

What factors affect the rate of photosynthesis?

The main variables which affect photosynthesis are light, water, CO 2 concentration and temperature. On a deeper level, other factors like amount of chlorophyll, availability of nutrients (eg Mg is needed for chlorophyll synthesis) will also affect the rate of photosynthesis,…

Do photosynthesis continues to increase with temperature?

Generally speaking, photosynthesis of a plant will increase with an increase in temperature . At least, that is, up until 25 degrees Celsius. That temperature is considered the optimum for many plants, and photosynthesis will not increase no matter how the temperature does.

Is the rate of photosynthesis temperature dependent?

Simple experiments carried out by scientists shows that the rate of photosynthesis is critically dependent upon variables such as temperature, pH and intensity of light . The photosynthetic rate is usually measured indirectly by detecting the amount of carbon dioxide released by plants.