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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

Does elodea conduct photosynthesis in light and dark?

Elodea can conduct photosynthesis in the light, utilizing light energy to convert carbon dioxide and water into glucose. In the dark, elodea will not photosynthesize, but will perform cellular respiration, breaking down stored sugars to produce energy.

How is cellular repiration related to photosynthesis?

Cellular respiration and photosynthesis are interconnected processes that occur in plants and some other organisms. Photosynthesis produces glucose and oxygen from carbon dioxide and water, while cellular respiration breaks down glucose and oxygen to produce energy (ATP), carbon dioxide, and water. Therefore, the products of photosynthesis are used as inputs for cellular respiration, and vice versa.

What happens during light independent stage of photosynthesis?

In the light-dependent stage, plant cells absorb light energy through proteins containing pigments, such as chlorophyll. In the final part of the stage, the process called photophosphorylation turns ADP into ATP, using the light energy taken in to make these high-energy molecules.

ATP and NADPH are used in the Calvin cycle, which is called a "light-independent" stage, to remove carbon from carbon dioxide to use in creating glucose and other molecules.

How are light reactions of photosynthesis important to the production of glucose?

The light reactions of photosynthesis generate ATP and NADPH, which are used in the Calvin cycle to produce glucose from carbon dioxide. Without these energy-rich molecules produced in the light reactions, the Calvin cycle would not have the necessary resources to synthesize glucose. Therefore, the light reactions are essential for the overall process of photosynthesis and glucose production.

What is the boiling point of chlorophyll?

Oh, dude, the boiling point of chlorophyll is around 405 degrees Fahrenheit (207 degrees Celsius). So, like, if you're planning on making some chlorophyll soup, just make sure you don't overcook it, unless you're into that burnt leaf taste, you know what I mean?

Does photosynthesis depend on chlorophyll?

Yes, photosynthesis depends on chlorophyll as it is the pigment that captures light energy from the sun and converts it into chemical energy to drive the process of photosynthesis in plants. Without chlorophyll, plants would not be able to carry out photosynthesis efficiently.

What does not require light?

The Calvin cycle of photosynthesis, which produces PGAL by fixing carbon from carbon dioxide which eventually makes glucose, is known as the "dark reactions" of photosynthesis since it does not directly need light.

However, the Calvin cycle does require NADPH and FADH produced from the "light reactions" of photosynthesis. Therefore, technically no part of photosynthesis can occur without light.

What do plants make by using light energy?

A plant uses light by collecting it through the leaves, then the chloroplasts take the oxygen that it also got through leaves and water from the roots and forms a kind of food almost like sugar. this process is called photosynthesis.

Which molecule is the oxygen derived from photosynthesis?

The oxygen plants give off is from water.

Two water molecules are broken apart inside the thylakoid space during the light reactions. The two oxygen atoms bond together to form molecular oxygen and the four hydrogen molecules help build up a gradient that will be used in chemiosmosis (a process that uses hydrogen to make energy similar to what a dam does).

What condition is least likely to affect a plants ability to perform photosynthesis?

A lack of nitrogen in the soil would be least likely to affect a plant's ability to perform photosynthesis. Nitrogen is essential for plant growth and development, but a plant can still photosynthesize to some extent even if nitrogen is limited. Other factors, such as water availability, sunlight, and carbon dioxide levels, have a more direct impact on photosynthesis.

Where does the ATP-PCr system take place in the cell?

The ATP-PCr system takes place in the cytoplasm of muscle cells. Phosphocreatine (PCr) stores high-energy phosphate bonds that can be used to quickly regenerate ATP during short bursts of intense energy production. This system helps provide rapid energy for activities like sprinting or weightlifting.

Why is the green wavelength of light little use in photosynthesis?

Chlorophyll, the molecule in plant cells that traps sunlight energy which is used to power the photosynthetic assembly of sugars, is green in colour.

Any molecule that appears green in colour when illuminated by white light (sunlight), is absorbing all the colours (spectrum) which make up white light EXCEPT the green part of the light spectrum, which it is reflected (so that the green light comes back to our eyes).

How do photosynthesis releases energy?

During photosynthesis, plants capture energy from sunlight and use it to convert carbon dioxide and water into glucose (sugar). This process releases oxygen as a byproduct. The stored energy in the glucose molecule is then used by the plant for growth, reproduction, and other metabolic activities.

Why is possible for Calvin cycle to occur in the dark?

The Calvin cycle is called the dark cycle because it does not require light to proceed. Unlike light reactions, the Calvin cycle is a light-independent reaction, which means it can and will occur in the dark as well as the light.

What two things must pass into a cell in order for it to get energy by cellular respiration?

Oxygen and glucose must pass into a cell in order for it to get energy by cellular respiration. Oxygen is required for the final electron acceptor in the electron transport chain, while glucose is broken down in glycolysis to produce ATP.

Which process makes the most usable energy for the dog?

The process that converts food into energy through metabolism is the most effective way for a dog to generate usable energy. This process breaks down nutrients from food to produce ATP, which is the primary energy source for cells in a dog's body. Regular exercise and a balanced diet play important roles in maximizing this energy production.

Which process is directly used by autotrophs to store energy en glucose?

Autotrophs use photosynthesis to store energy in the form of glucose. During photosynthesis, autotrophs convert light energy into chemical energy in glucose through a series of reactions involving carbon dioxide and water.

What is water converted into during photosynthesis?

During photosynthesis, water is converted into oxygen and glucose through a series of chemical reactions. This process takes place in the chloroplasts of plant cells, where sunlight is used as the energy source to drive the conversion of water and carbon dioxide into oxygen and glucose.

What is the process of combining oxygen and food to produce energy?

The process of combining oxygen and food to produce energy is called cellular respiration. During this process, cells break down glucose molecules in the presence of oxygen to produce ATP (adenosine triphosphate) which is the energy currency of the cell. Carbon dioxide and water are byproducts of this process.

What are the energized electrons in photosynthesis?

The energized electrons in photosynthesis come from water molecules that are split during the light-dependent reactions. These electrons are transferred through a series of protein complexes in the thylakoid membrane, creating a proton gradient that drives ATP synthesis.

Where does poison detoxification take place in a cell?

PEROXISOMESSmall lysosome-like membranous sacs containing oxidase enzymes that detoxify alcohol, hydrogen peroxide, and other harmful chemicals.

What is the product of light independent reactions?

The product of light independent reactions are Oxygen, ATP, and NADPH.

ATP is a unit of energy that the body uses; NADPH is the reduced form of NADP (as you can tell, it is missing hydrogen).