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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.

29,893 Questions

What is the relationship between light-dependent and the light independent reaction?

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Asked by Wiki User

they are both stages in photosynthesis and both require enzymes and occur in the chloroplast :)

What will be the results of photosystem 2 being exposed to less sunlight?

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Asked by Wiki User

Fewer hydrogen ions will be pumped into the thylakoid

Which is role of photosystem in the light reactions?

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Asked by Wiki User

to make energy-carrier molecules like NADPH

Apex

What is the first step of the Calvin -benson cycle?

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Asked by Wiki User

The first step of the Calvin cycle is carbon fixation. RuBisCO (ribulose-1,5-bisphosphate carboxylase oxygenase) is the enzyme that fixates a carbon from carbon dioxide to RuBP (ribulose-1,5-bisiphosphate) to make 3-phosphoglycerate.

What is light produced?

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Asked by Wiki User

A filament is heated by an electric current and photons are emitted.

What is the main organ of plant?

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Asked by Wiki User

Androecium and Gynoecium are the chief reproductive organs of plants.stamen is the basic unit of androecium and pistil is the basic unit of gynoecium.

and flowers

Attractions between water molecules are called?

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Asked by Wiki User

"van der waals" forces.

Do plants give out oxygen?

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Asked by Wiki User

I think when they receive carbon dioxide

Comparing and contrasting photosynthesis and cellular respiration?

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Asked by Wiki User

2 ways alike:

both photosynthesis and respiration occur in organelles of plant cells.

both involve the flow of electrons through the cell membrane in order to harvest energy.

2 ways they are different:

Respiration produces energy, where as Photosynthesis requires energy

Photosynthesis takes place in chloroplasts, respiration takes place in mitochondria

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Best Answer - Chosen by Voters2 ways alike:

What makes plant sugars?

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Asked by Wiki User

Vanilla sugar does not come from a plant but rather is made by placing split vanilla beans in either regular (granulated) or powdered sugar.

In a few weeks the vanilla essence infuses itself into the sugar & it can then be used in various recipes

Does Mountain Dew affect the grow of plants?

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Asked by Wiki User

The fact that you even have to ask this says something about you. But Mountain Dew will most likely kill a plant. Don't take my word for it, though, you should try it yourself.

What fixes carbon in photosynthesis?

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Asked by Wiki User

In photosynthesis, carbon is fixed through a process known as the Calvin Cycle. This cycle takes place in the chloroplasts of plant cells and involves a series of chemical reactions. Here's a simplified explanation:

Carbon Fixation: Carbon dioxide (CO2) from the atmosphere is captured by a molecule called ribulose-1,5-bisphosphate (RuBP). This process is catalyzed by an enzyme called ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO).

Formation of 3-Phosphoglycerate (3-PGA): The CO2 is then incorporated into RuBP, resulting in the formation of 3-PGA, a 3-carbon compound.

Reduction of 3-PGA: ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate) generated during the light-dependent reactions are used to convert 3-PGA into another 3-carbon compound called glyceraldehyde-3-phosphate (G3P).

Regeneration of RuBP: Some of the G3P molecules are used to regenerate RuBP, which is crucial for sustaining the Calvin Cycle.

The fixation of carbon during photosynthesis is vital for plants to convert sunlight into energy-rich molecules like glucose, ultimately supporting their growth and providing oxygen to the atmosphere.

Why is Respiration important for all living things?

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Asked by Wiki User

Respiration is not essential for life. Many forms of bacteria do not undergo cellular respiration and are still considered 'alive'. Respiration, more specificially cellular respiration, is just one of many ways (although one of the more energetically efficient ways) for a cell to produce energy.

Human cells are capable of producing energy in one of two ways, depending on the condition the cells are placed in. The most common of the two ways is through cellular respiration. This occurs when there is sufficient oxygen being carried to the cells via the blood. The second occurs when the body's cells do not have enough oxygen to support cellular respiration. This is commonly experienced during heavy workouts. When the body's cells don't have the needed oxygen to undergo cellular respiration, the cells revert to a form of energy creation called 'fermentation,' which DOES NOT require oxygen. Fermentation causes the build-up of lactic acid in muscle cells, which leaves that sore feeling in your muscles after a workout.

Why are photosynthesis and respiration considered opposite reactions?

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Asked by Wiki User

The process of photosynthesis stores energy in the form of chemical bonds (in carbohydrates including glucose, or sugar) and in the process releases free oxygen by breaking down carbon dioxide. Cellular respiration absorbs free oxygen, to release energy stored in the chemical bonds of food. This oxidation creates carbon dioxide, completing the cycle of carbon through the biosystem.

(Some forms of respiration are anaerobic, not using oxygen, and break down carbohydrates in a different manner, releasing either carbon dioxide or methane. The net result is the same: removing energy from the carbohydrate bonds.)

How does the ocean provide the Earth with the majority of its oxygen?

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Asked by Camille14

The ocean makes the sun and the air hit the water and then all the carbon dioxide is released and then oxygen is made.

What do plants use for photosynthesis?

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Asked by Wiki User

Photosynthesis is a process that occurs in the leaves of a plant and needs both chlorophyll and light energy.

Is pitcher plant do photosynthesis?

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Asked by Wiki User

pitcher plants can photosynthesis, any green part of a plant can photosynthesis. pitcherplants though cannot photosynthesis enough to survive and have adapted to digest small organosms instead.

Do plants absorb more carbon dioxide at day or night?

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Asked by Wiki User

The photosynthesis process that occurs at night is called the light-independent reaction, or the calvin cycle. It is a process that utilizes the materials created in the light dependent reaction, ( the process that requires light) and CO2 to produce carbohydrates and oxygen.

Do plants grow better in artificial light or under sunlight?

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Asked by Wiki User

It depends what you mean by better. They will grow more naturally in sunlight but can be forced artificially with lights and may produce more and be grown out of season. I would say natural is better but then we have a world to feed.

Why plants give off oxygen during photosynthesis?

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Asked by Wiki User

Yes. All living things, except maybe the extremophiles that live near volcanic vents in the bottom of the sea, require oxygen to live. Even green plants need oxygen.

Sure, the leaves release oxygen, but the roots must draw in oxygen from air pockets in the soil to live. You can find this out by over-watering a potted plant. Saturating the soil will make the plant wilt and act as though it is drying up even though the soil is soaking wet. The roots have drowned and have died, therefore the rest of the plant runs out of water just as it would if the soil dried completely out.

Every living thing breaks down carbohydrates to release energy. This process requires oxygen. Even plants that live submerged in water need oxygen and get it from leaves and stems that float on the water surface - even kelp in the ocean does this. The things that look like plants in the ocean that don't have above water parts aren't really plants, but are animals that are just rooted in place such as coral, sponges, etc.

How and when to perform rudrabhishekam?

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Asked by Wiki User

Rudrabhishekam is performed to Lord Shiva. legend goes thaat Lord Shri Rama performed Rudrabhishekam at Rameshwaram before crossing the sea to reach lanka. This abhishekam is performed to wash away one's sin and bring home prosperity and happiness in the family. Pradosham is the one of the favourite days for Lord Shiva and this Rudrabhishekam can be performed on this day. Or alternatively Monday's is also considered to be auspicious day for Lord Shiva. Rudrabhishekam to be accompanied by the recital of Namakam and Chamakam and can be performed at any Shiva Temple or at one's Own house rather than a rented House. Prasanna aprkmr@gmail.com

What two things did Magellan miscalculate?

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Asked by Wiki User

1. trade opened up a great deal, with new markets everywhere around the world there was a great deal of advancement in physics and math as new machinery was needed for quick efficient machines which produced quality items. 2. Found new land for Europe and killed many indians.