Q. What happens to a plant when the light intensity is below the light compensation point?
The compensation point is where light intensity is at the point where the rate of photosynthesis is equal to the rate of respiration. At light intensities below this point, more respiration occurs. At higher light intensities, more photosynthesis occurs.
Q. What substance’s do green plants use continuously for photosynthesis over a 24 hour period?
But green plants need more than just carbon dioxide to carry out the process of photosynthesis. They use a colored pigment called chlorophyll to collect energy from the Sun. During photosynthesis the plant uses the energy from the Sun to combine carbon dioxide and water to make the sugar called glucose.
Q. What substance do green plants constantly use?
Chlorophyll. Chlorophyll, the pigment in plants that makes them green, is essential to the photosynthetic process. This chemical is produced naturally by all green plants and its role in photosynthesis is to absorb light. That light energy triggers the chemical reaction we know as photosynthesis.
Q. What is used to monitor the rate of photosynthesis in a plant?
Gas exchange is used most often as the way to measure photosynthesis, and there are a few different techniques. Infrared Gas Analyzer: CO2 absorbs infrared light. When infrared light is directed at a plant or leaf in a closed space or chamber, there is less CO2 because the plants have used it in photosynthesis.
Q. What is one way of directly measuring the rate of photosynthesis?
7 Explain that the rate of photosynthesis can be measured directly by the production of oxygen or the uptake of carbon dioxide, or indirectly by an increase in biomass.
Q. What is the relationship between light intensity and the rate of photosynthesis?
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.
Q. How do you determine the rate of photosynthesis?
Methods to calculate the rate of photosynthesis 1) Measuring the uptake of CO2 2) Measuring the production of O2 3) Measuring the production of carbohydrates 4) Measuring the increase in dry mass Photosynthesis is the process by which plants absorb light to produce glucose for themselves.
Q. What are two ways the rate of photosynthesis can be measured?
What are the different methods of measuring the rate of photosynthesis?
- Measuring the uptake of CO2
- Measuring the production of O2
- Measuring the production of carbohydrates.
- Measuring the increase in dry mass.
Q. What three factors affect the rate of photosynthesis?
The main factors affecting rate of photosynthesis are light intensity, carbon dioxide concentration and temperature.
Q. Which of the following would decrease the rate of photosynthesis?
A build up of oxygen will slow down reaction rate. Photosynthesis increases if the amount of oxygen is decreased. A high level of oxygen is a limiting factor. A plant deficient in chlorophyll will absorb less light, which will lower the rate of photosynthesis.
Q. What happens to the rate of photosynthesis as light intensity decreases?
As you rise from low light intensity to higher light intensity, the rate of photosynthesis will increase because there is more light available to drive the reactions of photosynthesis. At a very high intensity of light, the rate of photosynthesis would drop quickly as the light starts to damage the plant.
Q. What factors affect light intensity and color?
Answer: The value and intensity of a color are affected by the amount of light, too. In lower light, colors appear darker and less intense. As you increase the amount of light, the value lightens and the intensity increases until you reach its true color.
Q. What is the relationship between light and Colour?
Light is made up of wavelengths of light, and each wavelength is a particular colour. The colour we see is a result of which wavelengths are reflected back to our eyes. The visible spectrum showing the wavelengths of each of the component colours. The spectrum ranges from dark red at 700 nm to violet at 400 nm.
Q. Does color affect light intensity?
The value and intensity of a color are affected by the amount of light, too. In lower light, colors appear darker and less intense. As you increase the amount of light, the value lightens and the intensity increases until you reach its true color.
Q. What factors affect the intensity of ground shaking?
When an earthquake strikes, the intensity of earthquake shaking determines the severity of damage. In turn, the main factors affecting earthquake shaking intensity are earthquake depth, proximity to the fault, the underlying soil, and building characteristics—particularly height.
Q. Where would the intensity be higher?
epicenter
Q. What two things affect intensity?
Intensity results from two factors: the amplitude of the sound waves and how far they have traveled from the source of the sound. Amplitude is a measure of the size of sound waves. It depends on the amount of energy that started the waves.
