What is light saturation point?
(The light saturation point is the intensity at which additional increases in light do not increase photo- synthesis.) This means the value of supplemental lighting is marginalized at a low CO2 concentration.
What is the photosynthesis equation?
The process of photosynthesis is commonly written as: 6CO2 + 6H2O → C6H12O6 + 6O2. This means that the reactants, six carbon dioxide molecules and six water molecules, are converted by light energy captured by chlorophyll (implied by the arrow) into a sugar molecule and six oxygen molecules, the products.
What are the CO2 and light compensation points?
compensation point The point reached in a plant when the rate of photosynthesis is equal to the rate of respiration. This means that the carbon dioxide released from respiration is equivalent to that which is taken up during photosynthesis. The compensation point is reached as light intensity increases.
How is ATP produced in photosynthesis?
The Light Reactions of Photosynthesis. Light is absorbed and the energy is used to drive electrons from water to generate NADPH and to drive protons across a membrane. These protons return through ATP synthase to make ATP.
What light intensity is best for photosynthesis?
The best wavelengths of visible light for photosynthesis fall within the blue range (425–450 nm) and red range (600–700 nm). Therefore, the best light sources for photosynthesis should ideally emit light in the blue and red ranges.
How does light affect co2?
As the light intensity increases the rate of photosynthesis follows (point B on the graph). This means more carbon dioxide is being absorbed by the plant for photosynthesis. So this means more carbon dioxide uptake occurs. The graph shows this increase in carbon dioxide uptake.
How do you explain photosynthesis to a child?
Photosynthesis is the process in which green plants use sunlight to make their own food. Photosynthesis is necessary for life on Earth. Without it there would be no green plants, and without green plants there would be no animals. Photosynthesis requires sunlight, chlorophyll, water, and carbon dioxide gas.
What is photosynthesis for kids?
Photosynthesis is the process by which plants make their own food using carbon dioxide, water and sunlight.
Why is compensation point important?
The compensation point (Ic) is the irradiance at which photosynthesis equals respiration. It is a useful estimate of the lowest irradiance at which algae can maintain an autotrophic existence.
How does light affect oxygen production in plants?
Increasing the light intensity increases the rate of photosynthesis, until some other factor – a limiting factor – becomes in short supply. At very high light intensities, photosynthesis is slowed and then inhibited, but these light intensities do not occur in nature.
What are the 2 stages of photosynthesis?
While there are many steps behind the process of photosynthesis, it can be broken down into two major stages: light-dependent reactions and light-independent reactions.
What is ADP and NADP?
ATP – Adenosine triphosphate. ADP – Adenosine diphosphate. NADP – Nicotinamide adenine dinucleotide phosphate. NADPH – The reduced form of NADP. In the Light Dependent Processes i.e Light Reactions, the light strikes chlorophyll a in such a way as to excite electrons to a higher energy state.
How is the PI curve related to photosynthetic rate?
PI curve. A derivation of the Michaelis–Menten curve, it shows the generally positive correlation between light intensity and photosynthetic rate. Plotted along the x -axis is the independent variable, light intensity (irradiance), while the y -axis is reserved for the dependent variable, photosynthetic rate.
What is the definition of the process of photosynthesis?
Photosynthesis Definition. “Photosynthesis is a biochemical process by which plants, a few bacteria and protists use sunlight, carbon dioxide and water to produce oxygen and glucose.
What happens during light independent stage of photosynthesis?
Photosynthesis occurs in two stages. In the first stage, light-dependent reactions or light reactions capture the energy of light and use it to make the energy-storage molecules ATP and NADPH . During the second stage, the light-independent reactions use these products to capture and reduce carbon dioxide.
What kind of energy does a plant use in photosynthesis?
Photosynthesis is the process by which plants use sunlight, water, and carbon dioxide to create oxygen and energy in the form of sugar.