Temperature affects photosynthesis by allowing plants to photosynthesize (i.e., build up) and respire (i.e., break down) when there is optimum daytime temperature. It also enables plants to curtail the rate of respiration at a cooler night. With high temperatures, respiration increases and the products of photosynthesis are used faster than they are produced.Continue Reading
The rate of the chemical reactions during photosynthesis increases with temperature. However, temperatures above 40 C causes the process to slow down. This occurs because the enzymes involved in photosynthesis are sensitive to temperature. Additionally, low temperatures cause plants to grow poorly. It slows down photosynthesis, thus resulting in slower growth and lower yields.
Enzymes are easily affected by temperature. When it is too cold, they move around much slower, thus unable to allow for a reaction to occur. When it is too hot, the rate of reaction increases. Heat energy leads to more collisions between the substrate and the enzyme.
Different plants require different optimal temperatures to grow well. Plants that grow in colder climates grow best at low temperatures. For a certain number of days, buds of plants need to get exposed to chilling hours, which is below a critical temperature, to resume growth during spring. When dormant, they can withstand even lower temperatures. After the rest period, they become more vulnerable to weather conditions, especially cold temperatures.Learn more about Botany
Most photosynthesis takes place in the leaf of plants in the chloroplasts. The chloroplasts contain a green pigment called chlorophyll that is responsible for absorbing sunlight that hits the leaf.Full Answer >
Most plants would not grow very well under yellow light, as this color is not easily absorbed by photosynthetic pigments in plants for use in photosynthesis. As a result of poor light absorption, the plant would probably die from a lack of nutrition.Full Answer >
Non-vascular plants excrete excess gases produced by cellular respiration and photosynthesis through diffusion, the movement of molecules from a concentrated area to an area of low concentration. Mosses and algae excrete and take in oxygen and carbon dioxide with the environment through this process.Full Answer >
Osmosis is important to plants because it allows for water uptake, photosynthesis and general stability. Osmosis ensures that all cells and structures within a plant have correct water pressure and volume.Full Answer >