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visual pigments.
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What Occurs only in the presence of chlorophyll and light?
It is the light reaction. It requires lights to happen.
Which nutrient requires intrinsic factor for absorption?
b12
Ingenhousz found that plants produce oxygen bubbles only in the presence of what?
Only in the presence of light
What effect would the presence of potassium hydroxide have on photosynthesis?
It is used for the absorption of CO2 (Carbon-di-Oxide)
What does ambibition mean in a plant?
Absorption of water due the presence of hydrophilic proteins in plants (more particularly in seeds) is ambibition.
What Occurs only in the presence of chlorophyll and light?
It is the light reaction. It requires lights to happen.
What cellular process process requires the presence of chlorophyll?
Photosynthesis requires the presence of chlorophyll.
Do pigments affect the absorption of light in plants?
Yes they do affect the absorption of light in plants.
What presence is needed for photosynthesis to occur?
Photosynthesis requires: - Sunlight - Chloroplasts - Carbon dioxide (CO2) - Water (H2O)
Which nutrient requires intrinsic factor for absorption?
b12
Is absorbing light a chemical reaction?
Light absorption is a physical process; but the effects of the absorption may be chemical.
What is the first process in the light dependent reactions of photosynthesis?
Excitation of electrons in photosystem II.
What are some examples of absorption?
An example of light absorption is a crystal. Crystals absorb light and then reflect the light back out resulting in the appearance of a rainbow.
Absorption mechanism that requires energy?
Active transport
What 3 things is needed for photosenthesis to occur?
Photosynthesis requires Carbon Dioxide + Water in the presence of light, it's products are Glucose and Oxygen.
Why absorption happen in incomming light?
In absorption, the frequency of the incoming light wave is at or near the energy levels of the electrons in the matter.
Is acetone evaporating from skin exothermic or endothermic?
The evaporation of acetone from the skin is an endothermic process. This means that it requires energy in the form of heat to break the intermolecular forces holding the acetone molecules together, leading to the molecules transitioning from liquid to gas phase. This absorption of heat causes a cooling effect on the skin.
