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Thylakoids are disc-shaped structures which make up grana of chloroplasts. They are the site of light reaction(photo-chemical phase of photosynthesis) because they contain quantosomes within them lining their inner membrane. Quantasomes contain chlorophyll molecules which carry out photosnthesis.
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How is ATP made in the light reactions?
In the light reaction, when electrons are transferred from photosystem 1 to photosystem 2, it goes through an electron transport chain. This ETC pumps protons into the thykaloid. Those protons diffuse out of the thykaloid through ATP synthase which energizes a phosphate group to bond to ADP. This creates ATP.
Where in the plant cell does photosynthesis occur?
Within Chloroplasts.
Are ATP molecules made during the light-independent reactions of photosynthesis?
No, ATP molecules are not directly made during the light-independent reactions of photosynthesis (Calvin cycle). ATP is produced during the light-dependent reactions (Light reactions) of photosynthesis when light energy is used to convert ADP and inorganic phosphate into ATP. The ATP produced in the light reactions is then utilized as an energy source during the Calvin cycle to drive the conversion of carbon dioxide into glucose.
What is the function of a thykaloid membrane?
The thylakoid membrane is where the light-dependent reactions of photosynthesis take place in plant cells. This membrane contains chlorophyll and other pigments that capture light energy and convert it into chemical energy in the form of ATP and NADPH. It also houses the protein complexes involved in the electron transport chain, which generates the energy needed to produce glucose during photosynthesis.
What is photoactivation of chlorophyll?
The initial stage of [[photosynthesis in [[chlorophyll Molecules where the presence of [[light Energy raises the energy. It is the first event int he first phase of photosynthesis which is light-dependent reactions.it happens at the thykaloid. Chlorophyll molecules capture light energy and becomes energized electrons(e-).
Where do the lightdependent reactions take place?
on the thykaloid membranes of the chloroplast.
What are the insides of a thykaloid membrane?
The thylakoids of a chloroplast contain the phytosynthetic pigments, such as chlorophyll.
What is the possible result of photosynthesis?
Cells produce energy through the chloroplasts, which originated from light. There are two reactions: one in the thykaloid, which is known as the light reaction, and one in the stroma, which is called the Calvin Cycle. the Calvin Cycle is known as the sugar factory.
How is ATP made in the light reactions?
In the light reaction, when electrons are transferred from photosystem 1 to photosystem 2, it goes through an electron transport chain. This ETC pumps protons into the thykaloid. Those protons diffuse out of the thykaloid through ATP synthase which energizes a phosphate group to bond to ADP. This creates ATP.
Where does electron transport chain happen?
It occurs in the inner mitochondrian membrane. it is most commonly used to produce energy in the mitochondria, however, it can occur in chloroplasts (in which case, it would occur in the thykaloid)
What are the Light reactions steps?
As light is absorbed the electrons pass through the pigments. The energy passes through the PEA molecules in the thykaloid membrane. The energy moves through the electron transport chain. The energy has been replenished. Water splitting occurs in the Calvin Cycle. All of the energies are paired with a H plus ion.
What is responsible for capturing the light in photosynthesis?
Pigment molecules, such as chlorophyll, are responsible for capturing light in photosynthesis. These pigments absorb light energy, which is then used to drive the chemical reactions of photosynthesis to convert carbon dioxide and water into glucose and oxygen.
Where in the plant cell does photosynthesis occur?
Within Chloroplasts.
Are ATP molecules made during the light-independent reactions of photosynthesis?
No, ATP molecules are not directly made during the light-independent reactions of photosynthesis (Calvin cycle). ATP is produced during the light-dependent reactions (Light reactions) of photosynthesis when light energy is used to convert ADP and inorganic phosphate into ATP. The ATP produced in the light reactions is then utilized as an energy source during the Calvin cycle to drive the conversion of carbon dioxide into glucose.
How are light reactions and dark reactions similar and different?
Differences: >light reactions occur in the thykaloid membranes, but dark occur in stroma >light reactions are light dependent, or they need light to take place, whereas dark reactions don't > dark reactions use the products of the light reactions >light reactions are the first step of photosynthesis and dark reactions are the second step Similarities: >both in photosynthesis Thats really the only similarity!!! hope this helps :)
Explain the function and structure of chloroplast?
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What is the function of a thykaloid membrane?
The thylakoid membrane is where the light-dependent reactions of photosynthesis take place in plant cells. This membrane contains chlorophyll and other pigments that capture light energy and convert it into chemical energy in the form of ATP and NADPH. It also houses the protein complexes involved in the electron transport chain, which generates the energy needed to produce glucose during photosynthesis.
