Table of Contents
What affects photosynthetic rate?
Three factors can limit the rate of photosynthesis: light intensity, carbon dioxide concentration and temperature.
What causes a decrease in the photosynthetic rate?
The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.
How does disease affect photosynthesis?
Disease induced reduction in chlorophyll content appears to be one of the causes for reduction in PSII yield. Increase in starch accumulation in infected leaves appears to be a cause for reduction in photosynthesis in infected leaves.
What happens when a plant Cannot photosynthesize?
During photosynthesis, plants take in carbon dioxide (CO2) and water (H2O) from the air and soil. This transforms the water into oxygen and the carbon dioxide into glucose. The plant then releases the oxygen back into the air, and stores energy within the glucose molecules.
What are the 5 factors affecting plant growth?
Environmental factors like temperature, light, water, nutrients, and soil affect plant growth from their germination to blooming.
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 temperature affect the rate of photosynthesis?
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 would increase the rate of photosynthesis?
Light intensity
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.
How do leaf spots affect photosynthesis?
Leaf spots reduce the surface area available on leaves for photosynthesis and so can result in smaller growth and yield of plants. Weakened plants may produce lesser fruit. Virus caused leaf spots reduces chlorophyll in the leaves, resulting in less photosynthetic activity.
Can plants photosynthesize without chlorophyll?
If plants require chlorophyll to produce energy from sunlight, it’s logical to wonder if photosynthesis without chlorophyll can occur. The answer is yes. Other photopigments can also utilize photosynthesis to convert the sun’s energy. In fact, even plants that are green have these other pigments.
Can plants survive without chlorophyll?
Without the green chlorophyll all plants would be white. It doesn’t make food for itself like other plants, but instead gets its nourishment through a mutually beneficial fungal and tree root (mycorrhizal) relationship. Ultimately it gets nourishment from the trees.
What is climatic factors in plants?
CLIMATIC FACTORS AFFECTING PLANT GROWTH The climatic factors include rainfall and water, light, temperature, relative humidity, air, and wind. They are a biotic components, including topography and soil, of the environmental factors that influence plant growth and development.