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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

Name the organelle in which photosynthesis occurs?

The organelle in which photosynthesis takes place is the chloroplast.

Chloroplast is the photosynthesizing organelle in eukaiyotes. In prokariyotes,it takes place in photosynthetic filaments

What happens to the water molecules when the plants absorb light energy during photosynthesis?

Water molecules are split into oxygen, protons, and electrons when plants absorb light energy during photosynthesis. This process is known as photolysis and occurs in the thylakoid membranes of the chloroplasts. Oxygen is released as a byproduct, while the protons and electrons are used to produce ATP and NADPH for the Calvin cycle.

What is the source of engery for the photosynthesis reactions and where do they take place in a cell?

The energy for photosynthesis reactions comes from sunlight. These reactions take place in the chloroplasts of plant cells, specifically in the thylakoid membrane where pigments like chlorophyll capture light energy to drive the process of photosynthesis.

What is released after photosynthesis?

The primary products released after photosynthesis are oxygen and glucose. Oxygen is released as a byproduct of the light-dependent reactions, while glucose is formed as a result of the light-independent reactions.

How does photosynthesis in plants benefits animals?

Photosynthesis in plants converts energy from the sun into a chemical that animals are in turn able to consume and convert back into the energy they require to function. Photosynthesis also converts the poisonous gas CO2 back into its components, Carbon and oxygen. Both of these processes are imperative for animals to survive as they have no way of directly accessing the suns energy nor are they able to cope with high concentrations of carbon dioxide or the effects that this gas has in the atmosphere.

Plant tissue noted for photosynthesis storage and secretion is?

The plant tissue noted for photosynthesis is the mesophyll tissue, specifically the palisade mesophyll layer. The storage tissue is the parenchyma cells that store starch, water, and nutrients. The secretion tissue is the glandular tissue such as the secretory hairs or glands found in certain plants.

Plant cells undergo photosynthesis Which organelle does this process take place in?

Photosynthesis takes place in the chloroplasts of plant cells. Within the chloroplasts, the pigment chlorophyll captures sunlight and converts it into chemical energy to produce glucose from carbon dioxide and water.

What powers the proton gradient of positive ions in the stroma?

The proton gradient across the thylakoid membrane is powered by the flow of electrons from water to NADP+ during photosynthesis. This flow of electrons creates a proton gradient that drives ATP production through ATP synthase.

The carbon cycle is an example of an?

The carbon cycle is an example of a biogeochemical cycle, which involves the movement of carbon through the atmosphere, hydrosphere, biosphere, and geosphere. It plays a crucial role in regulating Earth's climate by maintaining a balance of carbon between these different reservoirs.

Which is a reactant for the reaction that is powered by sun hitting photosystem II?

Water is the reactant for the reaction powered by the sun hitting photosystem II. This reaction leads to the splitting of water molecules to release oxygen, protons, and electrons in the process of photosynthesis.

Is photosynthesis a chemical property?

The energy provided by absorbing light can substitute for the heat energy that usually accelerates chemical reactions. More fundamentally, any endothermic chemical reaction can occur because an increase in entropy compensates for any heat absorbed by the reaction to make the free energy change negative.

Is glucose what happens after the stage of sunlight for photosynthesis?

1. The plants need energy, this they obtain by the process of respiration. Some glucose which a leaf makes maybe broken down by respiration to release energy.

2. The glucose may be converted to starch and stored.

3. The glucose maybe used as the starting point to make other organic substances.

4. The glucose maybe transported to other parts of the plant where it is needed; It is transported in the form of sucrose.

Why is photosynthesis impacted by a limited nitrogen supply?

Nitrogen is a key component of chlorophyll, the pigment that captures sunlight for photosynthesis. Without enough nitrogen, plants can't produce enough chlorophyll, which reduces their ability to photosynthesize efficiently. This can lead to stunted growth and decreased overall plant health.

Is sugar broken down by plant cells for energy during cellular respiration'?

Yes, plant cells break down sugar (glucose) through a series of enzymatic reactions in the process of cellular respiration to produce energy in the form of ATP. This process occurs in the mitochondria of plant cells, similar to animal cells.

What does photosynthesis and cellular respiration have to do with matter cycling and energy flowing?

the photosynthesis produces molecules, while cellular respiration, breaks it down. An example is when I have sex with your mom and we have you, however she sucks my penis so much and I put it into her vag that we have more kids, then you hate it so you kill the other kids.

What substances can a plant use PGAL to make?

Plants can use PGAL (phosphoglyceraldehyde) to make various organic compounds such as glucose for energy production, cellulose for cell walls, and lipids for cell membranes. Additionally, PGAL can be used in the production of amino acids and other compounds essential for plant growth and development.

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.

How is chromatography related to photosynthesis?

The process of chromatography relates to the overall process of photosynthesis because photosynthesis is the source of food for plants. Plants use sunlight, CO2 and water to make energy in the form of glucose. The role of pigments in this is that pigments help to create energy in plants by absorbing sunlight. Pigments can absorb or reflect certain light waves according to their specific wavelengths which can be determined by the colour of the pigment. Different colours of pigments have different corresponding wavelengths. The pigment, chlorophyll, found in most plants is the one most associated with photosynthesis. This pigment reflects green wavelength because they provide less energy and reflects it for us to view the plant as green. An example of this would be spinach. This green plant contains multiple pigments. It contains chlorophyll which reflects green light and also contains multiple other pigments which pass through the leaf to be used in photosynthesis. Particularly intense reflection increases the colour of the plant and since green plants contain an abundance of chlorophyll to reflect as much green light as possible, we see spinach as a dark green plant.

What is the final product generated from the Calvin cycle at the end of the photosynthesis reactions?

The final product generated from the Calvin cycle at the end of the photosynthesis reactions is glucose, a simple sugar molecule that stores energy and is used by the plant for growth and metabolism.

What are the 3 products of the light-dependent reactions?

The three products of the light-dependent reactions are oxygen (O2), ATP (adenosine triphosphate), and NADPH (nicotinamide adenine dinucleotide phosphate).

Differentiate light reaction dark?

Light reactions occur in the thylakoid membranes of the chloroplast, where light energy is captured and converted into chemical energy in the form of ATP and NADPH. Dark reactions, also known as the Calvin cycle, take place in the stroma of the chloroplast and use the ATP and NADPH generated in the light reactions to produce glucose from carbon dioxide.

Are Stomata are stacks of thylakoids in the chloroplast?

No. Grana are stacks of thykaloids. Stomata are the holes on the undersides of leaves.

Why is CO2 removed in the Calvin cycle?

CO2 is removed in the Calvin cycle because it is used as a substrate to build carbohydrate molecules, particularly sugars like glucose. Through a series of enzyme-catalyzed reactions, CO2 is transformed into organic compounds, serving as the primary source of carbon for the production of sugars in photosynthetic organisms.

How do you determine whether a gas given off during a chemical reaction is oxygen or hydrogen?

One way to determine whether a gas given off during a chemical reaction is oxygen or hydrogen is by performing a gas test. For example, the gas test for oxygen involves relighting a glowing splint when inserted into the gas. If the splint reignites, then the gas is oxygen. The gas test for hydrogen involves holding a lit match near the gas, and if a "pop" sound is heard, then the gas is hydrogen.