The exergonic light-dependent reactions of photosynthesis convert light energy into chemical energy, producing ATP and NADPH . These reactions occur in the thylakoids of the chloroplasts. The products of the light-dependent reactions, ATP and NADPH, are both required for the endergonic light-independent reactions.
What are the three products of the light-dependent reactions quizlet?
The products of light-dependent pathways of photosynthesis are Oxygen, ATP, and NADPH .
What are the products of the light-dependent reactions?
2. The light-dependent reactions convert light energy into chemical energy. The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP and NADPH . These two energy-storing molecules are then used in the light-independent reactions.
Does light-dependent reaction 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 is the final product of light-independent reaction?
The light-independent reactions use the ATP and NADPH from the light-dependent reactions to reduce carbon dioxide and convert the energy to the chemical bond energy in carbohydrates such as glucose .
What comes from the light-dependent reactions quizlet?
The light-dependent reactions produce oxygen gas and convert ADP and NADP+ into the carriers ATP and NADPH . ATP and NADPH provide the energy needed to build high-energy sugars from low-energy carbon dioxide.
What are the products of light-dependent reactions Why are they important in light-independent?
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 is the first set of 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.
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 main purpose of the light dependent reactions?
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 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 the difference between light dependent and light independent reaction?
In the light-dependent reactions, energy from sunlight is absorbed by chlorophyll and that energy is converted into stored chemical energy. In the light-independent reactions, the chemical energy harvested during the light-dependent reactions drives the assembly of sugar molecules from carbon dioxide.
What are the raw materials of light independent reaction?
In photosynthesis, oxygen, carbon dioxide, ATP, and NADPH are reactants. GA3P and water are products. In photosynthesis, chlorophyll, water, and carbon dioxide are reactants.
Why does oxygen production stop without light?
Answer 2: Plants break down sugar to energy using the same processes that we do. Oxygen is needed to break the sugar into carbon dioxide, releasing energy the plants can use to stay alive. ... Since there's no sunlight at night, this gives the plants a way to stay alive, even when there's no light.
What is required for the light-dependent reactions quizlet?
The light-dependent reactions require light and water , occur in the thylakoids, and produce ATP and NADPH. The light-independent reactions require carbon dioxide, occur in the stroma, and produce high-energy sugars. What are the three primary factors that affect the rate of photosynthesis?
Where does the light-dependent reaction occur quizlet?
In photosynthesis, the light-dependent reactions take place on the thylakoid membranes . The inside of the thylakoid membrane is called the lumen, and outside the thylakoid membrane is the stroma, where the light-independent reactions take place.
