The splitting of water molecule is take place inside
a)Outer membrane
b)Lumen
c)Stroma
d)Inner membrane
Correct answer is option 'B'. Can you explain this answer?

Question

The splitting of water molecule is take place insidea)Outer membraneb)Lumenc)Stromad)Inner membraneCorrect answer is option 'B'. Can you explain this answer?

Answer

Splitting of water molecule (photolysis) takes place in lumen of thylakoids

Answer

Option  d is correct

Answer

Photosynthesis is divided into two sets of reactions: the light-dep

endent (light) reactions and the light-independent (dark) reactions. As their names imply, the first set depends directly on light, whereas the second set does not. Nevertheless, even the dark reactions will cease if the plants are deprived of light for too long because they rely on the products of the light reactions.

The light reactions, which convert the energy in light into chemical energy, take place within the thylakoid membranes of the chloroplasts, whereas the dark reactions, which use that chemical energy to fix CO
2
into organic molecules, take place in the stroma of the chloroplast. In the light reactions, the energy of light is used to 'split water,' stripping a pair of electrons from it (and causing the two hydrogens to be lost), thus generating molecular oxygen. The energy in light is transferred to these electrons, and is then used to generate adenosine triphosphate ( ATP ) and the electron carrier
NADPH
. These two products carry the energy and electrons generated in the light reactions to the stroma, where they are used by the dark reactions to synthesize sugars from CO
2
.

Answer

Photolysis is associated with PSll. Site for Photolysis is lumen of thylakoids.

Answer

Splitting of water actually takes place in the lumen and the electrons that is generated from the splitting is carried out to PS II by Yz protein.

Answer

C

Answer

D is the right ans water splitting take place in PS2 and PS2 is present in inner side of thylakoid membrane that's why water splitting is also take place in inner side of thylakoid membrane not in lumen

Answer

B) Thylakoid membrane

The process of splitting water molecules, known as photolysis, takes place inside the thylakoid membrane of the chloroplasts in plant cells. The thylakoid membrane is a highly specialized membrane system found within the chloroplasts, which are the sites of photosynthesis in plants.

Photosynthesis is the process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen. It consists of two main stages: the light-dependent reactions and the light-independent reactions (also known as the Calvin cycle). The light-dependent reactions occur in the thylakoid membrane, while the light-independent reactions take place in the stroma, which is the fluid-filled space surrounding the thylakoid membrane.

- Thylakoid Membrane and its Structure:

The thylakoid membrane is composed of a phospholipid bilayer embedded with various proteins and pigments. It is organized into stacks called grana, which are interconnected by structures called stroma lamellae. The grana provide a large surface area for the absorption of light energy, while the stroma lamellae allow for the transfer of electrons and energy between the grana.

- Light-Dependent Reactions:

During the light-dependent reactions, light energy is absorbed by pigments, such as chlorophyll, located in the thylakoid membrane. This energy is used to drive a series of chemical reactions that result in the production of ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate), which are energy-rich molecules.

The splitting of water molecules occurs as a part of these light-dependent reactions. Water molecules are present in the thylakoid lumen, the space inside the thylakoid membrane. The absorbed light energy excites the electrons in the chlorophyll molecules, which are then transferred through a series of electron carriers embedded in the thylakoid membrane. As the electrons are transferred, water molecules are split into hydrogen ions (H+) and oxygen (O2) by an enzyme called photosystem II.

- Oxygen Evolution and Hydrogen Ion Release:

The oxygen released during the process of water splitting is a byproduct of photosynthesis and is essential for the survival of many organisms on Earth. The hydrogen ions produced during water splitting are used to generate ATP through a process called chemiosmosis. This ATP is then utilized in the light-independent reactions to convert carbon dioxide into glucose.

In conclusion, the splitting of water molecules takes place inside the thylakoid membrane of the chloroplasts during the light-dependent reactions of photosynthesis. This process is crucial for the production of oxygen and the generation of ATP, which are essential for the synthesis of glucose and the overall energy metabolism of plants.

Answer

Splitting of water takes place near PS II, located in the inner side of the thylakoid membrane.

Splitting of water releases oxygen in the atmosphere and generates a proton gradient across the thylakoid membrane.

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