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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 four reasons photosynthesis is important to life?

The process of photosynthesis enables plants to sustain their own life by taking in carbon dioxide and producing oxygen.

The oxygen they produce is the oxygen that humans breathe.

Photosynthesis enables plants to keep alive so that this process may continue.

Plants are important for several other reasons (vegetation, soil cover) and the process of photosynthesis ensures that these other functions can be fulfilled without human supervision, because the plant can sustain its own life through photosynthesis and carry out its necessary functions.

What is the name of a plant with green leaves and two lines of red dots?

The plant you are referring to is most likely a Polka Dot Plant (Hypoestes phyllostachya). This plant has green leaves with pink or red dots on the surface, giving it a distinctive appearance. It is a popular indoor plant known for its colorful foliage.

What are some limiting factors of the photosynthesis process?

The maximum rate of photosynthesis is controlled by the limiting factor.

For instance, increasing the temperature from 10ºC to 20ºC could double the rate of photosynthesis as the plant's enzymes will be closer to their optimum working temperature. As the temperature is increased, molecules in the cells will be moving at a faster rate due to kinetic theory. If the temperature is raised above a certain level, the rate of photosynthesis will drop as the plant's enzymes are denatured. They will therefore be more likely to join onto the enzymes and react. But if this happens the plant will need more water or light so they become the limiting factor.

Most plants have ways to make up for the insufficient supply of any of them. Most plants grow towards their light source. Also a lot of plants have very deep roots that can make up for insufficient water supply. If a human wanted to increase the yield of a plant they would put up artificial lights, fertilisers to increase minerals in soil and a sprinkler system to keep the plants watered.

Do cellular respiration and photosynthesis occur at the same time?

No, cellular respiration and photosynthesis cannot occur in the same cell at the same time because they have opposite requirements. Cellular respiration requires oxygen and glucose to produce energy, while photosynthesis requires carbon dioxide and sunlight to produce glucose and oxygen. They are typically balanced out in plants over a day-night cycle.

Which two products are given off during photosynthesis?

The products of Aerobic Cellular Respiration are: 36 ATP, Water and Carbon Dioxide. Of Anaerobic Respiration in Animals: Lactic Acid and 2 ATP Of anaerobic respiration in Plants: Ethanol, CO2 and 2 ATP

What does autotroph and heterotrophs have to do with photosynthesis?

A heterotroph is an organism that cannot fix carbon and uses organic carbon for growth.

Heterotrophs function as consumers in food chains: they obtain organic carbon by eating other heterotrophs or autotrophs ie they don't photosynthesize.

This contrasts with autotrophs, such as plants and algae, which can use energy from sunlight (photosynthesis ).

Ninety-five percent or more of all types of living organisms are heterotrophic.

What is the role of ferredoxin?

Ferredoxin is a protein that plays a key role in electron transfer in various metabolic pathways, particularly in photosynthesis and cellular respiration. It acts as a carrier for electrons, shuttling them between different enzymes and complexes in these processes. Ferredoxin is essential for generating ATP, the energy currency of the cell.

Explain how H2O and sunlight make energy and release O2 as a waste product?

H2O and Sunlight make ATP energy using Photosynthesis.

Hydrogen has two atoms. Lets look at it like this:

H H

O

Hydrogen stays. Oxygen is released through the stomata into the biosphere.

Hydrogen then reacts with Carbon Dioxide to make ATP energy, Glucose, and STARCH

Therefore we receive the equation:

6H2O + 6CO2 + Sunlight --> C6H12O6 + 6O2

Water + Carbon Dioxide + Sunlight = Glucose + Oxygen

Oxygen is then released into the air, and it is continuous. The glucose is stored as ATP Energy, STARCH, or plain old Glucose to feed to plant.

How do you test to confirm that the gas released by the plant was oxygen?

Sometimes, you can test for the presence of pure oxygen via the glowing splint test.

Basically, you light a splint (a small wooden stick) and then blow the flame out, so the end is just glowing. Then, you place the splint in the environment that you're testing for oxygen. If the splint reignites, then the gas in the environment is pure oxygen.

What is the name of 6co2?

The name of the chemical compound CO2 is carbon dioxide. It is a colorless gas with a faint odor, composed of one carbon atom bonded to two oxygen atoms.

Where in the plant does fertilization occur?

Fertilization in plants typically occurs in the ovary, where the female reproductive cells (eggs) are located. Pollen containing male reproductive cells (sperm) is transferred to the ovary, allowing fertilization to take place and initiate seed development.

What materials are needed by plants in photosynthesis?

The 3 materials needed for photosynthesis are water, carbon dioxide, and sunlight. These 3 materials combined enable the plant to make a sugary substance known as glucose. 6 molecules of water+6 molecules of carbon dioxide=1 molecule of sugar+6 molecules of oxygen* *=The plant doesn't need the oxygen so it releases it into the air. That's how we get our oxygen. :)

Does photosynthesis deposit energy in earths saving account for living organisms?

Yes, photosynthesis is the process by which plants convert sunlight into chemical energy in the form of glucose. This energy is stored in plant tissues and is used by other organisms when they consume plants, making photosynthesis a key component in the energy flow of ecosystems.

What is the process by which water plants get carbon dioxide for their food process?

Water plants get carbon dioxide for their food process through a process called photosynthesis. During photosynthesis, plants absorb carbon dioxide from the air through tiny pores in their leaves called stomata. This carbon dioxide is then converted into glucose and oxygen with the help of sunlight and water.

How do you produce oxygen and remove carbon dioxide from a biosphere on Mars?

Mars' atmosphere contains mainly carbon dioxide, which means that in order for the oxygen/carbon dioxide cycle to occur, Mars has to go through the same procedures that Earth went through. A simple organism must be formed that can undergo photosynthesis, converting carbon dioxide into oxygen. Once it has enough oxygen, a new organism will probably form that are able to breathe oxygen. The key point is to have many photosynthetic organisms in order to convert enough carbon dioxide into oxygen.

What Organelle allows plants to make their own food through the process of photosynthesis?

Chloroplasts are the organelles in plant cells responsible for conducting photosynthesis. They contain pigments like chlorophyll that capture light energy and convert it into chemical energy used by the plant to produce food.

How does increase of CO2 levels affect photosynthesis?

Up to a point, an increase of the reactant Carbon dioxide will increase the production of oxygen (increase the rate of photosynthesis). However, it will eventually change the ratio of CO2 and water as the CO2 increases, and the production of oxygen will decrease, (or in other words, the rate of photosynthesis decreases). This is one of the reasons why an increase of CO2 levels in the atmosphere is dangerous, as oxygen levels will decrease.

What does respiratory system and cellular respiration have in common?

Both the respiratory system and cellular respiration involve the exchange of gases, specifically oxygen and carbon dioxide. The respiratory system brings oxygen into the body and removes carbon dioxide, while cellular respiration occurs within cells and uses oxygen to produce energy, releasing carbon dioxide as a byproduct.

Whether plants with non green leaves have chlorophyll and can they carry out photosynthesis?

Plants with non-green leaves, like some succulents and variegated plants, may still contain chlorophyll in varying amounts. While they may not have as much chlorophyll as green leaves, they can still carry out photosynthesis, although at a reduced rate. The pigments in their leaves that give them their color may also play a role in photosynthesis.

What type of respiration are carbon dioxide water and energy the products of?

The process of (aerobic) cellular respiration combines a carbohydrate with oxygen to release energy. This oxidation reaction is the "reverse" of photosynthesis.

Which tissue transports soluble products of photosynthesis in plants?

Phloem tissue transports soluble products of photosynthesis in plants, such as sugars and other nutrients, from the leaves to other parts of the plant for growth and energy production. This process is called translocation and ensures the distribution of essential nutrients throughout the plant.