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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 other form of energy are produced from chemical energy used during cellular respiration?

Adenosine triphosphate (ATP) is the main form of energy produced during cellular respiration. ATP is a molecule that carries energy within cells for various cellular processes.

What happen to the plant when the outer ring of a stem was removed?

Removing the outer ring of a stem, also known as the phloem, disrupts the plant's ability to transport sugars and nutrients produced in the leaves to the rest of the plant. This can lead to wilting, stunted growth, and eventually, death if the damage is severe and not corrected promptly.

Where do the light- independent reactions occur?

light independent reactions take place in thylakiods- more specifically in the thylakiod membranes of chloroplasts.

Why freshly prepared 'KOH' solution is taken in a watch-glass and kept in the bell jar during the experiment to show that carbon-dioxide is essential for photosynthesis?

The freshly prepared KOH solution is used in the experiment to absorb carbon dioxide present in the air inside the bell jar. By keeping the KOH solution in a watch-glass, any change in the color of the solution due to the absorption of carbon dioxide can be easily observed. This helps demonstrate that carbon dioxide is essential for photosynthesis by showing that the removal of carbon dioxide inhibits the process.

What best describes the difference between photosynthesis in the chloroplast and cellular respiration in the mitochondiria?

Photosynthesis in the chloroplast is a process by which plants use sunlight to convert carbon dioxide and water into glucose and oxygen. Cellular respiration in the mitochondria is a process by which cells break down glucose to produce energy in the form of ATP, with oxygen being used as a final electron acceptor. Essentially, photosynthesis stores energy while cellular respiration releases energy.

What does photosynthesis give plants?

Photosynthesis provides plants with the energy they need to grow and survive by converting sunlight into chemical energy in the form of glucose. Additionally, photosynthesis produces oxygen as a byproduct, which is released into the atmosphere.

How cell to cell movement of water takes place in plants?

Water moves from cell to cell in plants through a process called osmosis, where water molecules move from an area of higher concentration to an area of lower concentration through a semipermeable membrane. This movement is facilitated by specialized structures called aquaporins, which act as channels for water to pass through cell membranes. Additionally, the cohesion and adhesion properties of water molecules also play a role in allowing water to move through the plant's vascular system.

What percentage of the Oxygen produced worldwide comes from algae?

Because of its vast habitaion in the waters of earth it photosynthesizes more than trees and plants and therefore produces more oxygen than them too =]

--I think he wants numbers, too.--

Why must leaves be exposed to sunlight for some time before testing for starch?

Leaves need to be exposed to sunlight to undergo photosynthesis, which is the process that produces starch as a storage form of sugar. Without sunlight, photosynthesis cannot occur, and starch will not be produced in the leaf cells. Therefore, exposing leaves to sunlight allows them to accumulate starch, making it easier to test for its presence.

What two wavelengths of light are least and most useful to photosynthesis?

Green light is the least useful wavelength for photosynthesis because it is mostly reflected by chlorophyll. Red and blue light are the most useful wavelengths for photosynthesis as chlorophyll absorbs them most efficiently for the process.

Why the rate of photosynthesis may fall when a plant wilts?

WILTING means when a plant does not have adequate amount of water supply.

Therefore less water molecules will be present in the mesophyll cells to be split by the chlorophyll to be combined with CO2 to form C6H12O6(glucose).As a result photosynthesis will decrease.The plant may dry up and die

What pigments do plants use to carry out photosynthesis and what do these pigments do specifically for the process?

Plants use chlorophyll a and chlorophyll b pigments to carry out photosynthesis. These pigments absorb light energy and transfer it to the reaction center of the photosystem, where it drives the conversion of carbon dioxide and water into glucose and oxygen. This process is essential for plants to produce their own food and release oxygen into the atmosphere.

What is organelle that carry out cellular Respiration an photosynthesis?

Cellular respiration and photosynthesis are processes carried out in separate organelles within the cell. Cellular respiration occurs within mitochondria present in all living cells - both plant and animal. Photosynthesis occurs within the chloroplasts of plant cells only.

How do the structure and function of roots stems and leaves help a plant carry out life processes?

Root, stem and leaves are fundamental parts of the vascular plants. Root helps in absorption and anchorage, stem supports the leaves and conducts water and minerals to the leaves and leaves prepare food in the presence of sunlight. Thus by division of work different parts of the plant carry out life processes.

What are the two reactants and two products of photosynthesis?

Photosynthesis:

Carbon Dioxide +water + sunlight = glucosee + oxygen

chemical formula: CO2 + H2O + light energy = C6H12O6 + O2

Reactants: carbon dioxide, water, and light energy from the sun

Products: glucose and oxygen

Do conifers have photosynthesis?

Yes, all plants, including the conifers, photosynthesize. The leaves of conifers contain photosynthetic pigments which means that they are capable of photosynthesis. In matter of fact, most conifers are evergreen which means that they keep their leaves year-round and can photosynthesize for much more time in the year than other types of trees.

Is sunlight inorganic?

Sunlight itself is not considered organic or inorganic, as it is a form of electromagnetic radiation emitted by the sun. It is not composed of organic molecules that contain carbon-hydrogen bonds, like those found in living organisms.

What is an example of a stem that conducts photosynthesis and stores water?

Aloe vera is an example of a stem that conducts photosynthesis and stores water. The stem of the aloe vera plant is capable of producing food through photosynthesis, and it also stores water to survive in arid conditions.

What does photosynthessis make?

Photosynthesis is the process by which plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose (a type of sugar) and oxygen. This process is essential for the production of food and oxygen in the ecosystem.

Why is it better to have a factory close to raw materials?

Having a factory close to raw materials reduces transportation costs and lead times, increases efficiency in production processes, and minimizes the environmental impact of transportation. It also allows for better quality control and quicker response to changes in raw material availability or quality.

Do plants need limewater to photosynthesis?

Plants do not require limewater to photosynthesize. Photosynthesis primarily involves extracting carbon dioxide from the air and converting it into glucose using energy from sunlight. Lime or limewater is used by plants mainly to adjust soil pH and provide calcium for healthy growth, but it is not directly involved in the photosynthesis process.

What is the molecule made by photosynthesis that is used by other organisms to perform cellular respiration?

The molecule made by photosynthesis is glucose. Other organisms, such as animals and plants, use glucose as a source of energy in cellular respiration to produce ATP for various cellular activities.

What gas in the atmosphere is used by plants in photosynthesis to form sugars?

Plants use carbon dioxide (CO2) in the atmosphere during photosynthesis to form sugars and oxygen. This process is essential for the growth and survival of plants.

Organisms that are not capable of photosynthesis?

Photosynthesis occurs in a variety of bacteria, algae and plants. All other organisms, including animals, are not able to photosynthesize.