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Photosynthesis

This category is for questions about the chemical process in which autotrophic organisms use sunlight, carbon dioxide and water to make glucose, water and oxygen. This process is vital to life and is of great importance in biology.

6,415 Questions

Why can the dark reaction occur in day light hours?

The dark reaction, also known as the Calvin cycle, can occur during daylight hours because it does not directly require light energy to proceed. It uses the ATP and NADPH generated during the light-dependent reactions to fix carbon dioxide and produce sugars. So even though it doesn't rely on light for its energy source, it still benefits from the products of the light-dependent reactions that happen during the day.

What is the difference between photosynthesis and breathing in plants?

transpiration is the loss of water conducted by plant through the stomata. the evaporation of water from the leaves results in a suction force which pulls the water up the xylem vessels and out through the stomata. this suction force due to transpiration is the main factor in lifting water and dissolved mineral salts up the plant from the roots to the leaves. respiration on the other hand is a process wereby plants obtain energy by the oxidation of food substances, glucose in other words. this energy is thus utilized for cellular activities and in various chemical reactions going on inside the plant. breathing, a part of respiration, is completely different from transpiration as it involves gaseous exchange from the atmospheric air.

What are the products that come out of photosynthesis?

What are the products that come outof photosynthesis

What a pigment molecule that transfers electrons during light reaction?

The pigment molecule that transfers electrons during the light reaction is chlorophyll. Chlorophyll absorbs light energy and transfers electrons to the reaction center of the photosystem, initiating the flow of electrons through the electron transport chain. This process is essential for the conversion of light energy into chemical energy during photosynthesis.

What increases the rate of photosynthesis rises but if it gets too high causes it to drop?

Increasing light intensity initially increases the rate of photosynthesis by providing more energy for the process. However, if light intensity becomes too high, it can damage the photosynthetic machinery, leading to a drop in the overall rate of photosynthesis.

Explain why photosynthesis could have occurred in earths early atmosphere that did not contain oxygen and how it eventually affected the evolution of other organisms?

The world would be very different if green plants had not evolved because the world is based on green plants. They provide food for almost all organisms: plants, animals, and microorganisms. They release oxygen into the atmosphere. They provide people with products including building materials, medicines, fuels, and fibers. They form fossil fuels, which are used by people all over the world. None of this would exist without green plants. The world would be much less colorful and diverse as well, because we would not have the great variety of plants, including trees and flowers, we have now

What substance is the byproduct for this process?

The byproduct of a process depends on the specific reaction or operation taking place. Additional details would be needed in order to provide a more precise answer.

How is osmosis used in photosynthesis?

Osmosis 'works' in photosynthesise to transport liquids (mostly water) up the plant, generally from underground, to the areas of the plant where the photosynthesis occurs, and then in moving the sap away.

What is the color of phaeophytin?

Pheophytin or phaeophytin (abbreviated Pheo) is a chemical compound that serves as the firstelectron carrier intermediate in the electron transfer pathway of photosystem II (PS II) inplants, and the photosynthetic reaction center (RC P870) found in purple bacteria. In both PS II and RC P870, light drives electrons from the reaction center through pheophytin, which then passes the electrons to a quinone (QA) in RC P870 and RC P680. The overall mechanisms, roles, and purposes of the pheophytin molecules in the two transport chains are analogous to each other.

How do plsnts capture light energy for use in photosynthesis?

Plants have chloroplasts which have thylakoids in them. The walls of thylakoids have chlorophyll which when exposed to light (basically red and blue) get excited and release an electron.This electron provides energy for photosynthesis.

What is importance of a catalyst?

Catalysts are important because they speed up chemical reactions without loosing their own chemical make up. God Bless America cause all y'all rednecks got to go y'all sons of a bitches y'all dumber than Donald trump long lip ass stupid hoes

What is the specialist cell responsible for photosynthesis?

Chloroplasts are the specialist cells responsible for photosynthesis in plants. They contain chlorophyll, a pigment that absorbs light energy and converts it into chemical energy, which is used to produce glucose and oxygen.

Why do bryophytes require a moist environment for sexual repoduction?

when the fern spore falls to the ground, it doesn't begin to grow fronds right away. Instead, the spore grows into a tiny heart - shaped plant called a prothallium. The prothallium does not look like a fern frond at all. If you observe closely, you may find prothallia growing in damp, shady places where there are ferns.

How is light energy related to chemical energy?

Light energy can be absorbed by chlorophyll in plants during the process of photosynthesis, converting it into chemical energy in the form of glucose. This chemical energy is used by plants and other organisms as a fuel source for various metabolic processes.

What does the word cycle tell about chemical reactions of the Calvin cycle?

The Calvin cycle is a series of chemical reactions that occur in the chloroplasts of plant cells, and it is essential for photosynthesis. The term "cycle" refers to the fact that the reactions in the Calvin cycle are repeated in a continuous loop, allowing plants to convert carbon dioxide into glucose and other important molecules.

How can you become carbon neutral?

Carbon neutral means that on balance, you are not responsible for any increase in carbon dioxide emissions. You would need to get all your electricity from renewable resources. You would not use any fossil fuels. This would also mean that the food you eat is not transported in any fossil fuel burning vehicles.

Who kingdom makes their food through photosynthesis?

Plants are the kingdom that makes their food through photosynthesis. They use sunlight, water, and carbon dioxide to produce glucose and oxygen as a byproduct.

What three things do plants require to use photosynthesis?

Plants require sunlight, water, and carbon dioxide to carry out photosynthesis. Sunlight provides energy for the process, while water and carbon dioxide are used to produce glucose, the plant's main energy source.

Where does photosynthesis occur in lichens?

Photosynthesis in lichens mainly occurs in the green algae or cyanobacteria cells that are part of the lichen structure. These photosynthetic cells are located in the outer layer of the lichen, where they receive light for energy production. The other fungi component of the lichen provides structure and protection for the photosynthetic cells.

What do plants do with the oxygen they make from photosynthesis?

The oxygen that plants make is taken up by humans. The humans take the oxygen and transform it into carbon dioxide. When the humans do this then the plants take it and change it back into oxygen. This is a never-ending cycle, without plants, humans and animals would die out, without humans and animals, plants would die out.

What are the 3 things that are needed for photosynthesis?

Typical photosynthesis, ie, the formation of carbohydrates, requires carbon dioxide (from the air), hydrogen (usually from water) and sunshine. Of course a plant with chlorophyll-containing parts is also needed since this is where it all takes place.

Where fat and water and other molecules are stored?

Fat is stored in adipose tissue throughout the body, water is stored in various body compartments such as blood, cells, and extracellular spaces, and other molecules are stored in cells throughout the body for various functions like energy production, structure, and signaling.

What organelle does the light independent reaction occur?

The light-independent reactions of photosynthesis occur in the stroma of the chloroplast, which is a specialized organelle found in plant cells. This is where carbon dioxide is converted into glucose through a series of chemical reactions known as the Calvin cycle.

What plants do not contain chlorophyll?

All plants have chlorophyll. UNLESS these plants have develop parasitic relationships that result in the loss of the chlorophyll producing genes. Off the top of my head indian pipe does not have chlorophyll.