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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

How does the hatch slack pathway compare with the Calvin cycle?

C3 carbon fixation or the Calvin cycle is a metabolic pathway for carbon fixation in photosynthesis. This process converts co2 and ribulose bisphosphate into 3-phosphoglycerate through the following reaction:

6 CO2 + 6 RuBP → 12 3-phosphoglycerate

In C4 , carbon dioxide is drawn out of malate and into this reaction rather than directly from the air.

Since every CO2 molecule has to be fixed twice, the C4 pathway is more energy-consuming than the C3 pathway. The C3 pathway requires 18 ATP for the synthesis of one molecule of glucose while the C4 pathway requires 30 ATP. But since otherwise tropical plants lose more than half of photosynthetic carbon in photorespiration, the C4 pathway is an adaptive mechanism for minimizing the loss.

What is an input and output for photosynthesis?

It changes constantly, there is no set output.

The energy a plant gains from photosynthesis comes from light, so the energy produced changes with more/less sunlight.

Also, availability of water, availability of carbon dioxide, temperature and the species of plant are all factors which will effect this.

eg. A large oak tree on a bright sunny day will produce a large amount of energy, while on a cold rainy dark day a small holly bush will produce a little energy.

Photosynthesis and the energy produced is not a linear process; it chsngrs each time due to all the contributing variables.

And by the way, this should be in biology not physics...

Does photosynthesis represent a single replacement reaction?

Photosynthesis does not represent a single replacement reaction. It is a complex process that involves the conversion of light energy into chemical energy by plants, algae, and some bacteria. Photosynthesis involves multiple reactions, including light-dependent and light-independent reactions, to produce glucose and oxygen as end products.

What is a product of the light reactions of photosynthesis that are utilized in the Calvin cycle?

The product of the light reactions of photosynthesis that is utilized in the Calvin cycle is ATP (adenosine triphosphate) and NADPH (nicotinamide adenine dinucleotide phosphate). These two molecules provide the energy and reducing power necessary for the Calvin cycle to convert carbon dioxide into sugars.

Does light intensity or concentration of carbon have a greater impact on photosynthesis?

Light intensity has a greater impact on photosynthesis than the concentration of carbon. This is because light is the primary energy source for photosynthesis, while carbon dioxide is one of the raw materials needed for the process. However, both factors are important for optimal photosynthetic activity.

Where does photosynthesis occur and in what part of the cell?

Photosynthesis is the process that a plant does to create food for itself. It takes place in the chloroplasts- which contain chlorophyll which is a green pigment that makes the plant green.

What major metabolic products result from plant photosynthesis that is needed in animal cell respiration?

The major metabolic products that result from plant photosynthesis and are needed in animal cell respiration are glucose and oxygen. Glucose is utilized as a source of energy in animal cell respiration through the process of glycolysis and the citric acid cycle, while oxygen is necessary for the electron transport chain to generate ATP.

What is another way in which photosynthesis is important to life?

Photosynthesis is important because it provides oxygen, which is essential for the survival of most living organisms. It also serves as the foundation of the food chain by producing organic molecules that serve as food for other organisms. Additionally, photosynthesis helps regulate the Earth's climate by removing carbon dioxide from the atmosphere.

Does photosynthesis take place in a plant or animal?

Photosynthesis takes place in plants, algae, and some bacteria. It is a process by which these organisms use sunlight to convert carbon dioxide and water into glucose and oxygen. Animals cannot perform photosynthesis and rely on consuming other organisms for energy.

What things help green plants make food and what is the process called?

Green plants make food through the process of photosynthesis. They use sunlight, carbon dioxide, and water to produce glucose (sugar) and oxygen. The chlorophyll in plant cells captures sunlight energy, which is then used to convert carbon dioxide and water into glucose in the presence of chloroplasts.

How do photosynthesis and respiration affect the carbon- oxygen cycle?

respiration is a biophysical process of human biophysical this process oxygen is inhaled and carbon-dioxide is exhaled. Exhaled carbon-dioxide is consumed by plants to photosynthesise and and oxygen that is released by plants are taken by us.photosynthesis and respiration maintains carbon oxygen cycle.

How photosynthesis important for humans?

Photosynthesis is important for humans because it is the process by which plants convert sunlight, water, and carbon dioxide into oxygen and glucose. Oxygen is essential for human respiration, while glucose provides us with energy through the food chain. Additionally, plants are the primary source of food for humans, making photosynthesis crucial for our survival.

What is the organelle found in plant cells in which cellular respiration occurs?

Mitochondria are the organelles found in plant cells where cellular respiration occurs. Mitochondria are responsible for producing energy in the form of ATP by breaking down sugars through a series of biochemical reactions. This process releases carbon dioxide and water as byproducts.

What is your overall reaction to this excerpt from Ecclesiastes?

Ecclesiastes offers reflections on the meaning and purpose of life, highlighting themes of impermanence and the search for fulfillment. It conveys a sense of wisdom and contemplation on the human experience, encouraging readers to ponder the complexities of existence and the pursuit of meaning amidst life's uncertainties.

What is netgain light reaction?

The net gain in the light reaction of photosynthesis is the production of ATP and NADPH molecules, which are then used in the Calvin cycle to produce glucose. These molecules carry the energy captured from sunlight and convert it into chemical energy.

How does photosynthesis help trees grow?

Photosynthesis is the process by which trees convert sunlight into energy to produce glucose, their main source of food. This process allows trees to grow by providing the necessary energy for cell division and building new tissues. Without photosynthesis, trees would not have the energy needed for growth and would eventually die.

Why was the experiment of James van helmont important?

The reason this experiment was important is because he wanted to find out if there was any other intake besides water and soil and there was and it was carbondioxide so it was important to find out carbondioxide.

What molecule is used to capture light energy?

Chlorophyll captures light energy using photosynthesis. Energy is absorbed through wavelengths. It can absorb violet-blue and orange-red light energy easily.

Where do plants get the carbon from to make organic molecules?

The carbon in glucose comes from carbon dioxide that enters through the plant through small holes on the bottom, called the stomata. It goes through the Calvin Cycle, and becomes glucose and other sugars.

How do you increase a plants chlorophyll concentration?

To increase a plant's chlorophyll concentration, provide adequate sunlight for photosynthesis, ensure the plant has access to sufficient nutrients like nitrogen and magnesium which are essential for chlorophyll production, and avoid nutrient deficiencies which can hinder chlorophyll synthesis. Over-fertilization should be avoided as it can damage plant roots and inhibit chlorophyll production.

Which word describes a grass plant?

Grasses is a word; it is the plural of grass. It is used when talking about:

* a group of grass plants: " The grasses in the front garden bed were very ornamental in a breeze." * several types of grass: " The landscaper loaded the truck with the right grasses for the job."

How the burning of fossil fuels can help and hinder photosynthesis?

Burning fossil fuels can help photosynthesis by providing the necessary CO2, a key ingredient for the process. However, burning fossil fuels also releases pollutants like sulfur dioxide and nitrogen oxides that can harm plant health and hinder photosynthesis. Additionally, the greenhouse gases produced from burning fossil fuels can contribute to climate change, impacting the environment where photosynthesis occurs.

Is tulsi leaf simple or compound?

Simple it doesn't have leaflets coming off of a stem!

Why does only sunlight and not other light can be used for performing photosynthesis?

Sunlight is preferred for photosynthesis because it provides a full spectrum of light wavelengths necessary for plant pigments to absorb and initiate the process. Other light sources may not provide the specific wavelengths needed for efficient energy conversion. Additionally, sunlight is readily available and abundant, making it the primary source of energy for photosynthesis.

Could photosynthesis take place on Uranus?

Nothing can grow on Uranus. It is a cold planet and a gas giant, which means it is primarily made of gas with no solid surface.