What happens to water during photosynthesis quizlet?

Asked By: Veronica Brouwers | Last Updated: 12th May, 2020
Category: science chemistry
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During photosynthesis what happens to water? During the light reactions, electrons from water are removed and charged by photosytem 2 when the photosytem cleaves[splits || or breaks down] water splitting it into hydrogen ions(H+) ions & oxygen.

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Also asked, what happens to water during photosynthesis?

During the process of photosynthesis, six molecules of carbon dioxide and six molecules of water react in the presence of sunlight to form one glucose molecule and six molecules of oxygen. The role of water is to release oxygen (O) from the water molecule into the atmosphere in the form of oxygen gas (O2).

Also Know, what happens to water molecules in the light reactions of photosynthesis? Water molecules (H2O) are split to give electrons, H+ ions, and oxygen gas (O2) . In the Calvin cycle, carbon dioxide molecules (CO2) are combined with each other and with the electrons and Hydrogen ions from NADPH to form glucose (C6H12O6).

Regarding this, what role does water play in photosynthesis quizlet?

The role of water in photosynthesis is to: provide electrons. The energy of the movement of electrons down a concentration gradient via electron transport within the thylakoid membrane is used to generate: Carbon dioxide is required in the light reactions of photosynthesis.

What happens to the glucose produced in photosynthesis quizlet?

1. Light energy is absorbed and converted by chlorophyll in cholroplasts in plant leaves into chemical energy. Some of the glucose produced in photosynthesis is used immediately by plant cells. However, most glucose is *converted into insoluble starch and stored*.

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Where is water stored during photosynthesis?

The leaves of plants contain openings called stomata, which are used for the exchange of gases. Carbon dioxide, combined with water in photosynthesis, is drawn in through the stomata. Oxygen, a byproduct of the process, is released through these openings, along with water vapor in a process called transpiration.

Where is water broken down in photosynthesis?

The chloroplast is involved in both stages of photosynthesis. The light reactions take place in the thylakoid. There, water (H2O) is oxidized, and oxygen (O2) is released.

Why is water split in photosynthesis?

During Light reactions of Photosynthesis, the chlorophyll will be activated by light. This light activated chlorophyll will split the water molecule. This process is called Photolysis. Water molecule is split to release H+ ions and also oxygen.

Does water affect photosynthesis?

The amount of water available to the plant will affect the rate of photosynthesis. If the plant does not have enough water, the plant's stomata will shut and the plant will be deprived of CO². Carbon dioxide concentration will directly affect the rate of photosynthesis as it is used in the photosynthesis reaction.

What are the functions of water in plants?


The various functions of water in plants include: maintaining cell turgidity for structure and growth; transporting nutrients and organic compounds throughout the plant; comprising much of the living protoplasm in the cells; serving as a raw material for various chemical processes, including photosynthesis; and,

Why is photosynthesis important?

Photosynthesis is important to living organisms because it is the number one source of oxygen in the atmosphere. Green plants and trees use photosynthesis to make food from sunlight, carbon dioxide and water in the atmosphere: It is their primary source of energy.

Why do plants need h2o?

Plants also need water for photosynthesis. Photosynthesis is what plants do to create their food, and water is critical to this process. Water enters a plant's stem and travels up to its leaves, which is where photosynthesis actually takes place. Plants need this carbon dioxide to make food.

What enzyme breaks down water in photosynthesis?

The enzyme that facilitates this reaction and therefore underpins virtually all life on our planet is known as photosystem II (PSII), a multisubunit enzyme embedded in the lipid environment of the thylakoid membranes of plants, algae, and cyanobacteria.

What are the final products of photosynthesis?

The end products of photosynthesis are oxygen and glucose (if you have been in a AP Biology class or a college biology class, you would also know that some water is created in photosynthesis). Oxygen for cellular respiration in plants, animals, and humans, and glucose for energy once it is broken down into ATP.

What is chlorophyll What is its role in photosynthesis quizlet?


to convert light energy into chemical energy that can be stored. Describe Chlorophyll a and tell its functions. they absorb the light energy that chlorophyll a doesn't and transfer it to be used by chlorophyll a for photosynthesis.

What do you mean by photosystem?

Definition of photosystem. : either of two photochemical reaction centers consisting chiefly of photosynthetic pigments complexed with protein and occurring in chloroplasts: a : one that absorbs light with a wavelength of about 700 nanometers. — called also photosystem I.

What does Nadph do in photosynthesis?

NADPH is a product of the first stage of photosynthesis and is used to help fuel the reactions that take place in the second stage of photosynthesis. Plant cells need light energy, water and carbon dioxide to carry out the steps of photosynthesis.

What are Thylakoids and their function in photosynthesis quizlet?

A flattened, membranous sac inside a chloroplast. Thylakoids often exist in stacks called grana that are interconnected; their membranes contain molecular "machinery" used to convert light energy to chemical energy.

What is the main purpose of photosynthesis quizlet?

The purpose of photosynthesis is to convert water and carbon dioxide to glucose.

How is ATP made in photosynthesis?


Photosynthesis. Photosynthesis is the process by which plants, some bacteria and some protistans use the energy from sunlight to produce glucose from carbon dioxide and water. This glucose can be converted into pyruvate which releases adenosine triphosphate (ATP) by cellular respiration. Oxygen is also formed.

What is the role of water in cellular respiration?

Once the electrons reach this complex, they will be used to reduce oxygen (the final electron acceptor in the chain) into water. The main difference of the function of water in cellular respiration and photosynthesis, is that water is a product of cellular respiration, and water is a reactant in photosynthesis.

What are the products of photosynthesis?

The main product of photosynthesis is glucose, which is the molecule that produces energy to run the processes of the cell. Oxygen is mainly a byproduct of the process of photosynthesis. Six molecules of carbon dioxide and six molecules of water are needed to produce one molecule of glucose.