Which events take place in the light-dependent reactions of photosynthesis quizlet?
Which events take place in the light-dependent reactions of photosynthesis? Light energy is captured by plants; light energy is converted to chemical energy.
What are the main events of light-dependent reactions?
These reactions occur within specialised membrane discs within the chloroplast called thylakoids and involve three steps: Excitation of photosystems by light energy. Production of ATP via an electron transport chain. Reduction of NADP+ and the photolysis of water.
Which events take place in the light-dependent reactions of photosynthesis Brainly?
Light-dependent reactions, which take place in the thylakoid membrane, use light energy to make ATP and NADPH. The Calvin cycle, which takes place in the stroma, uses energy derived from these compounds to make GA3P from CO2.
What happens during the light-dependent reactions quizlet?
What happens during the light-dependent reactions? The light-dependent reactions use energy from sunlight to produce oxygen and convert ADP and NADP+ into the energy carriers ATP and NADPH. These reactions also produce oxygen as a by-product.
Which of the following occurs in the light-independent reactions of photosynthesis quizlet?
The light-independent reactions turn glucose, a sugar, into CO2 gas. The light-independent reactions use CO2 to make ATP. The light-independent reactions turn sugar into ATP for energy.
What takes place during light reaction?
The light reaction occurs in the thylakoids of the chloroplast. When the light hits, chlorophyll-a gets excited to a higher energy state followed by a series of reactions. This energy is converted into energy molecules ATP and NADPH by using PS I and PS II. Also, hydrolysis occurs and releases oxygen.
Where do light-dependent reactions take place?
thylakoid membrane Light-dependent reactions happen in the thylakoid membrane of the chloroplasts and occur in the presence of sunlight. The sunlight is converted to chemical energy during these reactions. The chlorophyll in the plants absorb sunlight and transfers to the photosystem which are responsible for photosynthesis.
Where does the light reaction takes place?
thylakoid discs The light reaction takes place in the thylakoid discs. There, water (H20) is oxidized, and oxygen (O2) is released. The electrons freed up from water are transfered to ATP and NADPH. The dark reaction occurs outside of the thylakoids.
What happens during the light reactions of photosynthesis?
During the light-dependent stage (“light” reactions), chlorophyll absorbs light energy, which excites some electrons in the pigment molecules to higher energy levels; these leave the chlorophyll and pass along a series of molecules, generating formation of NADPH (an enzyme) and high-energy ATP molecules.
What three events occur during the light reactions of photosynthesis quizlet?
The correct sequence of events in the light reactions is… absorption of sunlight, splitting of water, electrons flow down the electron transport chain, and ATP is made.
Which of these does not occur during the light-dependent reactions of photosynthesis?
Answer and Explanation: Of the following, carbon fixation does not occur during the light-dependent reactions of photosynthesis.
Which of the following occurs during the light-independent reactions of photosynthesis?
2) Calvin cycle, light independent reaction. Takes place on the stroma, inside the chloroplast. There are many enzymes in the chloroplast that aid to form starch by photosynthesis. The energy stored is transferred to the stroma and with the other raw materials chains of carbohydrate molecules are produced.
What happens during the light-independent reactions?
Light-independent reaction is a series of biochemical reactions in photosynthesis not requiring light to proceed, and ultimately produce organic molecules from carbon dioxide. The energy released from ATP (produced during the light reactions) drives this metabolic pathway.
What are the three parts of the light-dependent reactions?
4 Cards in this Set
| What are the three parts of the light-dependent reactions? | Photosystem 2, Photosystem 1, and ATP Synthase |
|---|---|
| What are the functions of photosynthesis 1? | to absorb and transfer energy when it goes into the electron transport chain. also to break down water as it goes across the thylakoid membrane. |
What three events occur during the light reactions of photosynthesis?
Here are the basic steps:
- Light absorption in PSII. When light is absorbed by one of the many pigments in photosystem II, energy is passed inward from pigment to pigment until it reaches the reaction center. …
- ATP synthesis. …
- Light absorption in PSI. …
- NADPH formation.
Which of the following occurs in the light reactions of photosynthesis?
The photolysis of water occurs during light reaction. The site for occurrence of photolysis is thylakoid lumen. The photolysis of water releases protons, which accumulate in the lumen and contribute to the electrochemical gradient of protons.
Which of the following take place during the light reactions?
During the light reactions, water is used and oxygen is produced. These reactions can only occur during daylight as the process needs sunlight to begin.
What three events occur during light reactions of photosynthesis?
Problem 6: Events during light reactions
- B oxidation of water, reduction of NADP+ , formation of ATP.
- C oxidation of water, recuction of NADP+ , hydrolysis of ATP.
- D fixation of carbon dioxide, release of oxygen, synthesis of glucose.
- E release of oxygen, fixation of carbon dioxide, hydrolysis of ATP.
Which of the following occurs during the light reactions?
The Light Reactions ATP and NADPH are generated by two electron transport chains. During the light reactions, water is used and oxygen is produced. These reactions can only occur during daylight as the process needs sunlight to begin.
Where do light-independent reactions take place?
stroma Photosynthesis occurs in the chloroplasts, the light-dependent reactions are located on the innermost membrane of chloroplasts called thylakoid membrane and light-independent reactions occur in the cytoplasm of the chloroplasts called stroma (17).
What three events occur in the light reactions of photosynthesis quizlet?
The light-independent reactions turn CO2, a gas, into usable carbon in the form of sugars. The light-independent reactions turn glucose, a sugar, into CO2 gas. The light-independent reactions use CO2 to make ATP. The light-independent reactions turn sugar into ATP for energy.
What does the light reaction of photosynthesis take place?
The chloroplast is involved in both stages of photosynthesis. The light reaction takes place in the thylakoid discs. There, water (H20) is oxidized, and oxygen (O2) is released. The electrons freed up from water are transfered to ATP and NADPH.
Which of the following occurs during the light reactions of photosynthesis quizlet?
– The light reactions take place inside the thylakoids of chloroplasts. – The light reactions produce chemical energy in the form of NADPH and ATP.
Which of the following occurs during the light dependent reaction of plants quizlet?
Which of the following occurs during the light-dependent reactions of plants? Light-driven electron transport in the chloroplast pumps H+ into the intermembrane space between the outer and inner membranes.
What three reactions occur during the light reactions in photosynthesis?
Light reactions in photosynthesis
- Oxidation of water.
- Reduction of NADP+
What are the steps involved in light independent reaction of photosynthesis?
The light-independent reactions (also known as the Calvin cycle) can be organized into three basic stages: fixation, reduction, and regeneration (Video 13.6. 1).
What happens during the light-independent 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.
Which of the following occurs in the light reaction of photosynthesis?
The photolysis of water occurs during light reaction. The site for occurrence of photolysis is thylakoid lumen. The photolysis of water releases protons, which accumulate in the lumen and contribute to the electrochemical gradient of protons.
Which of the following takes place during the light reactions?
During the light reactions, water is used and oxygen is produced. These reactions can only occur during daylight as the process needs sunlight to begin.
What are the 7 steps of light-dependent reactions?
Seven Steps of Light Dependent Reactions
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