The overall purpose of the light-dependent reactions is
to convert light energy into chemical energy
. This chemical energy will be used by the Calvin cycle to fuel the assembly of sugar molecules. The light-dependent reactions begin in a grouping of pigment molecules and proteins called a photosystem.
Which outcome is the main function of the light-dependent reactions of photosynthesis quizlet?
The basic function of the light reactions of photosynthesis is the production of glucose. The basic function of the light reactions of photosynthesis is
the conversion of solar energy to chemical energy
.
Which outcome is the main function of the light-dependent reactions of photosynthesis?
The overall function of light-dependent reactions, the first stage of photosynthesis, is
to convert solar energy into chemical energy in the form of NADPH and ATP
, which are used in light-independent reactions and fuel the assembly of sugar molecules.
What is the overall outcome of the light-dependent reactions in photosynthesis?
What is the overall outcome of the light reactions in photosynthesis? The outcome of light reactions in photosynthesis is
the conversion of solar energy into chemical energy that the chloroplasts can use to do work
(mostly anabolic production of carbohydrates from carbon dioxide).
What three things are produced by the light-dependent reaction?
What is produced in the light-dependent reactions? –
Energy/NADPH and ATP
are produced. What three things are needed for the Calvin Cycle to proceed? -ATP, NADPH, and carbon dioxide are needed for the Calvin Cycle.
What are the 7 steps of light-dependent reactions?
- (1st Time) Energy is absorbed from the sun.
- Water is broken down.
- Hydrogen ions are transported across the thylakoid membrane.
- (2nd Time) Energy is absorbed from the sun.
- NADPH is produced from NADP+.
- Hydrogen ions diffuse through the protein channel.
- ADP becomes ATP.
What is the function of the light-dependent reaction?
The light-dependent reactions use
light energy to make two molecules needed for the next stage of photosynthesis
: the energy storage molecule ATP and the reduced electron carrier NADPH. In plants, the light reactions take place in the thylakoid membranes of organelles called chloroplasts.
What is the main function of photosynthetic cells within a plant?
Photosynthetic cells contain chlorophyll and other light-sensitive pigments that
capture solar energy
. In the presence of carbon dioxide, such cells are able to convert this solar energy into energy-rich organic molecules, such as glucose.
What is the primary function of photosynthesis Why bother doing all this?
What is the primary function of photosynthesis? The primary function of photosynthesis is
to capture light energy, convert some of this light energy into chemical energy, and store this chemical energy in molecules of carbohydrates
(such as phosphoglyceraldehyde, glucose, or starch).
What is the significance of light reaction?
The main purpose of the light reaction is
to generate organic energy molecules such as ATP and NADPH
which are needed for the subsequent dark reaction. Chlorophyll absorbs the red and blue segment of the white light and photosynthesis occurs most efficiently at these wavelengths.
What are the two most important products that result from photosynthesis?
Specifically, plants use energy from sunlight to react carbon dioxide and water to produce
sugar (glucose) and oxygen
.
Do light-dependent reactions produce oxygen?
In the light-dependent reactions, which take place at the thylakoid membrane, chlorophyll absorbs energy from sunlight and then converts it into chemical energy with the use of water. … The light-dependent reactions
release oxygen as a byproduct as water is broken apart
.
What are the products of light-dependent reactions Why are they important?
The two products of the light-dependent reactions of photosystem are
ATP and NADPH
. The movement of high energy electrons releases the free energy that is needed to produce these molecules. The ATP and NADPH are used in the light-independent reactions to make sugar.
What are light reactions?
The series
of biochemical reactions in photosynthesis
that require light energy that is captured by light-absorbing pigments (such as chlorophyll) to be converted into chemical energy in the form of ATP and NADPH. Synonym: light-dependent reaction.
What is present in both the light-dependent and light-independent reactions?
Light energy is harnessed in Photosystems I and II, both of which are present in the thylakoid membranes of chloroplasts. In light-independent reactions (the Calvin cycle),
carbohydrate molecules
are assembled from carbon dioxide using the chemical energy harvested during the light-dependent reactions.
What is the first step in the light-dependent reactions?
The overall function of light-dependent reactions, the first stage of photosynthesis, is
to convert solar energy into chemical energy in the form of NADPH and ATP
, which are used in light-independent reactions and fuel the assembly of sugar molecules.
