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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

What are the farming practices that increases photosynthesis?

Farming practices such as crop rotation, cover cropping, no-till farming, and precision agriculture can increase photosynthesis. These practices help improve soil health, nutrient availability, and water retention, which can enhance plant growth and ultimately increase photosynthetic activity. Additionally, using organic fertilizers and reducing the use of chemical pesticides can also support healthier plants and higher photosynthesis rates.

Why does a solution of chlorophyll appear red when exposed to white light but the chlorophyll in a plant does not?

Chlorophylls reemit a fraction of the light energy they absorb as fluorescence. Irrespective of the wavelengthof the absorbed light, the emitted fluorescence is always on the long-wavelength side of the lowest energy absorption band, in the red or infrared region of the spectrum.

The fluorescent properties of a particular chlorophyll are functions of the structure of the molecule and its immediate environment. Thus, the fluorescence spectrum of chlorophyll in the living plant is always shifted to longer wavelengths relative to the fluorescence spectrum of a solution of the same pigment. This red shift is characteristic of aggregatechlorophyll.

AnswerChlorophylls reemit a fraction of the light energy they absorb as fluorescence. Irrespective of the wavelengthof the absorbed light, the emitted fluorescence is always on the long-wavelength side of the lowest energy absorption band, in the red or infrared region of the spectrum.

The fluorescent properties of a particular chlorophyll are functions of the structure of the molecule and its immediate environment. Thus, the fluorescence spectrum of chlorophyll in the living plant is always shifted to longer wavelengths relative to the fluorescence spectrum of a solution of the same pigment. This red shift is characteristic of aggregatechlorophyll

chlorophyll is a green boogie colour substance

How is photosynthesis effected by winter?

Typically, in winter there is less sunlight. The light that does reach the plants is weaker as the Earth is tilted further away from the Sun in winter. Plants are unabe to photosynthesize without sunlight, it is the power behind the entire process. Also, plants are unable to photosynthesize without water. In the depths of winter, much of this may be locked up as ice and therefore unaccessible to most plants.

How does the process of photosynthesis change during a full day?

During the day, photosynthesis in plants increases as they receive sunlight for energy. The process involves capturing light energy to convert carbon dioxide and water into glucose, releasing oxygen as a byproduct. As the sun sets, photosynthesis slows down due to the lack of sunlight and plants respire to continue producing energy.

Does chlorophyll a absorb mostly orange-red and violet blue light?

actually plants are green to the human eye because they reflect green light witch in return your eyes absorb so the chlorophyll absorbs the red and the blue while reflecting the green spectrum. btw the plants absorb more blue light than red as blue light contains more energy than red due to the higher Frequency and therefor more energy.

What does selectively permeable mean?

Selective permeability refers to the property of a membrane that allows certain molecules or ions to pass through while restricting the passage of others. This selectivity is based on factors like size, charge, and solubility. Essentially, the membrane is capable of regulating the passage of substances based on specific criteria.

How many grams of CO2 in the photosynthesis reaction are required to make 120 grams of glucose?

In the process of photosynthesis, the overall reaction involves 6 molecules of CO2 producing 1 molecule of glucose. The molar mass of CO2 is 44 g/mol and the molar mass of glucose is 180 g/mol. To produce 180 grams of glucose, you would need 6 * 44 = 264 grams of CO2.

What pigments do plants us to carry out photosynthesis?

Plants primarily use two pigments for photosynthesis: chlorophyll a and chlorophyll b. These pigments are located in the chloroplasts of plant cells and absorb light energy to drive the photosynthetic process. Chlorophyll gives plants their green color and is essential for capturing sunlight for energy conversion.

What are the reactants in photosynthesis?

The reactants in photosynthesis are carbon dioxide and water.

The overall reaction of photosynthesis is:

carbon dioxide + water --> glucose + oxygen gas + water

(some diagrams include the energy provided by light, but this is not a true reactant)

The catalyst, which is mostly recycled, is chlorophyll.

What are the products for photosynthesis?

Oxygen and glucose are the PRODUCTS of photosynthesis, while water, carbon dioxide, and light energy are the REACTANTS.

What is the mechanism of Reimer tiemann reaction when we use ccl4 in place of chcl3?

The Reimer Tiemann reaction wil not proceed as normal if we use tetrachloromethane; the usual mechanism involves deprotonation of chloroform followed by loss of a chloride ion from the anion to yield dichlorocarbene. With no hydrogens to be removed, tetrachloromethane will not do this.

It is, however, conceivable that dichlorocarbene could be generated from CCl4 by reaction with zinc, leading to a pseudo-Reimer-Tiemman reaction.

Does the color of a leaf affect the rate at which that leaf photosynthesizes?

yes,the color of the leafeffects the level of oxygen released. BECAUSE-the amount of chlorophyll present detrmines the rate of photosynthesis which inturn effects thelevel of oygen released.More the chlorophyll,more the greenish colour of the leaf,hence more the rate of photosynthesis & more the release of oxygen.

What role does chlorophyll play in the plant?

Answer

Give plants their color

*edit: Chlorophyll not only gives plants their colour but also captures the sun's energy and converts it into energy for the plant. It plays an important role in photosynthesis, the process in which plants obtain materials and make the food they need.



EDIT2: they also get rid of waste and stuff the tree can't use (ie: O2/oxygen)

Uses of glucose?

Glucose is used in the body as the primary source of energy for cellular functions. It is also used in various industrial processes such as fermentation to produce ethanol, in the production of pharmaceuticals, and as a component of food and beverage products. Additionally, glucose is used in medical settings as a treatment for low blood sugar levels.

Whet is light reaction process?

The light reaction can accomplish three things. Firstly, photoexcitation, basically what occurs in this process is the electron of chlorophyll absorb specific wave lengths of light. Secondly, we have electron transport, which pumps hydrogen to create a gradient that powers the ATP synthesis. And lastly there is chemosmosis, which is the movement of protons through ATP synthase complex that drives the phosphorylation of ATP.

What is the site of photosynthesis?

Photosynthesis commonly occurs within the chloroplasts, structures within the plant leaves. The chloroplasts contain stacks, or grana, of disc-shaped structures called thykaloids.

What is the definition of photosynthesis?

The process of constructive metabolism by which carbohydrates are formed from water vapor and the carbon dioxide of the air in the chlorophyll-containing tissues of plants exposed to the action of light. It was formerly called assimilation, but this is now commonly used as in animal physiology. The details of the process are not yet clearly known. Baeyer's theory is that the carbon dioxide is reduced to carbon monoxide, which, uniting with the hydrogen of the water in the cell, produces formaldehyde, the latter forming various sugars through polymerization. Vines suggests that the carbohydrates are secretion products of the chloroplasts, derived from decomposition of previously formed proteids. The food substances are usually quickly translocated, those that accumulate being changed to starch, which appears in the cells almost simultaneously with the sugars. The chloroplasts perform photosynthesis only in light and within a certain range of temperature, varying according to climate. This is the only way in which a plant is able to organize carbohydrates. All plants without a chlorophyll apparatus, as the fungi, must be parasitic or saprophytic. --Photo*syn*thet"ic (#), a. -- Photosynthet"ically (#), adv.

What do plants need for photosynthesis?

The balanced chemical equation for photosynthesis is.

12 H2O + 6 CO2 =in the presence of sunlight & chlorophyll= 6 H2O + 6 O2 + C6H12O6

As you can see water (H2O) and carbon di-oxide (CO2) are needed in the presence of sunlight and chlorophyll.
A plant needs these for photosynthesis:
sunlight
water
chlorophyll
carbon dioxide

What happens during photosynthesis?

During photosynthesis, plants use sunlight, carbon dioxide, and water to produce glucose (energy) and oxygen. The process occurs in the chloroplasts of plant cells, where chlorophyll absorbs sunlight to drive the chemical reactions that convert carbon dioxide and water into glucose. Oxygen is released as a byproduct into the atmosphere.

What materials are needed in constructing a plant nursery?

Materials needed for constructing a plant nursery include greenhouse structures, irrigation system, grow lights, potting mix, pots or trays, shelving units, ventilation system, and a temperature control system. Additionally, materials such as fans, shade cloth, and seedling heating mats may also be required depending on the specific needs of the plants being grown.

Photosynthesis chemically combines two products and they are?

I think it's Carbon Dioxide (CO2) and Water (H2O). Hope that helps!

How does metal rust?

When water gets on metal an than dries quickly, some of the water turns into rust. Think of it this way if you leave the steam in the bathroom from the shower and it finally goes away...it turns into rust.

What is needed for photosynthesis?

Photosynthesis is the process by which plants, some bacteria, and some protistans use the energy from sunlight to produce sugar, which cellular respiration converts into ATP, the "fuel" used by all living things. The conversion of unusable sunlight energy into usable chemical energy, is associated with the actions of the green pigment chlorophyll. Most of the time, the photosynthetic process uses water and releases the oxygen that we absolutely must have to stay alive. Oh yes, we need the food as well! it also helps us breathe. chyea homiiie

The building blocks of sugars and the substances used by plants in photosynthesis are?

The building blocks of sugars are monosaccharides such as glucose and fructose. Plants use carbon dioxide and water during photosynthesis to produce glucose, which serves as the primary source of energy for the plant.

What are the raw materials of photosynthesis?

The raw materials of photosynthesis are carbon dioxide (CO2), water (H2O), and sunlight. These are used by plants to produce glucose (sugar) and oxygen as byproducts through the process of photosynthesis.