What causes changes in rate of photosynthesis?

Answer 1

The rate of photosynthesis varies under different environmental circumstances and conditions because mostly of what the condition or environment does to affect the sunlight coming through the atmosphere in order to reach the plant. If a plant was located in a sunny tropical area, they would receive a lot of photosynthesis, because there is very little cloud cover. In some other parts of the world, however, plants would probably die, if they don't adapt, because in those areas, there might be a lot of cloud covering almost all of the time all year round or there might be things that hinder the sunlight coming through the cloud covering.

Answer 2

Two important ones.

Sunlight. The amount of sunlight, photons striking the pigment chlorophyll, varies and affects the rate of photosynthesis for obvious reasons.

Less obvious is the amount of water the plant gets. The plant splits water to garner electrons there to replace the electrons the pigment chlorophyll puts into photosystem II. So, less water, less photosynthetic rates.

Answer 3

Water, Light and Temperature are the main environmental factors that will affect photosynthesis, along with availability of CO2. However, light is the main factor. In general, the rate of photosynthesis increases as the light intensity increases, until all of the pigments are being used.

Answer 4

There are three rate-dependant factors: light, concentration of carbon dioxide and temperature.

with light, less sun= less photosynthesis, more sun= more photosynthesis. This is because there is a 'light dependant reaction' as part of photosynthesis, and therefore photosynthesis can only happen when there is enough light.

CO2 is needed for photosynthesis. The more co2, the faster the rate of photosynthesis.

Increasing the Temperature increases the rate. This is because there are enzymes in the process of photosynthesis, and with enzymes, the rate increases with temperature (up to a point, when it is too hot for the enzymes to work).

Answer 5

Light, water, temperature, carbon dioxide (and oxygen) all affect photosynthesis (see Related Link). People may argue which comes first but, logically, a plant needs nutrient rich soil to stay alive; you can cast a seed on bad soil and it won't grow. Without water, the plant may try to grow but have yellowed, white, or a ghastly pale color and eventually die. With nutrients and water, the inner structures and outer structures broaden, transport nutrients, and make the plant strong. But, plants need light for photosynthesis. Some plants do grow in low light, but most need some level of strong sunlight to mature properly and gain their nice green "clothes". Plants also give off oxygen and need carbon dioxide.

Without one of these factors, plants suffer or can die. The more any of these factors are absent, the plant will either not grow or not survive. For example, greenhouses maximize the effect of light. But if you planted seeds and kept the soil in total darkness (for example, under a cardboard box covered tightly by a tarp), if the seeds would even grow, the plant would soon die.

Answer 6

The Rate of Plants increasing,Caused The Temperature and Light Intensity Remained The same, Also causing Carbon Dioxide decreases surrounding the plants

Answer 7

Availablity of the reactants, CO2, water; intensity of light as well as temperature.

Other factors may include availability of protein and co enzymes.

Answer 8

it goes slowly

Answer 9

temperature