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What is the source of oxygen gas during photosynthesis ..

What gas is produced during photosynthesis

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What Is the Waste Product of Photosynthesis? | Sciencing

Plants get carbon dioxide from the air through their leaves. The carbon dioxide diffuses through small holes in the underside of the leaf called stomata. (singular: stoma. plural: stomata)

The lower part of the leaf has loose-fitting cells, to allow carbon dioxide to reach the other cells in the leaf. This also allows the oxygen produced in photosynthesis to leave the leaf easily.




Carbon dioxide is present in the air we breathe, at very low concentrations. Even though it forms about .04% of the air, it is a needed factor in light-independent photosynthesis.

In higher concentrations, more carbon is incorporated into carbohydrate, therefore increasing the rate of photosynthesis in light-independent reactions.

What Is the Waste Product of Photosynthesis

With ethanol becoming more prevalent in the media and in gas tanks, it is important for students to know from where it comes. This module uses a series of activities to show how energy and mass are converted from one form to another. It focuses on the conversion of light energy into chemical energy via photosynthesis. It then goes on to show how the chemical energy in plant sugars can be fermented to produce ethanol. Finally, the reasons for using ethanol as a fuel are discussed.

How a gas produced by this photosynthesis process

Show that with an activity ,oxygen gas is produced as a result of photosynthesis

To unlock the energy in the produced in photosynthesis, green plants need to , just as animals do. Respiration takes place in the plant's cells, using oxygen to produce energy and giving off carbon dioxide as a waste product. So in terms of the gas taken in and the gas given out, respiration is the opposite of photosynthesis.

A ventilation system is needed to maintain the concentration gradients of gases in the alveoli. Diffusion of gases occurs due to the concentration gradient of oxygen and carbon dioxide between the alveoli and the blood. The body needs to get rid of carbon dioxide which is a product of cell respiration and needs to take in oxygen as it is needed for cell respiration to make ATP. There must be a low concentration of carbon dioxide in the alveoli so that carbon dioxide can diffuse out of the blood in the capillaries and into the alveoli. Also there must be a high concentration of oxygen in the in the alveoli so that oxygen can diffuse into the blood in the capillaries from the alveoli. The ventilation system makes this possible by getting rid of the carbon dioxide in the alveoli and bringing in more oxygen.

Biology Ch. 4 Flashcards | Quizlet

The energy provided bycoal, oil, and gas comes from photosynthesis carried on by plants ofearlier times and preserved down through the ages, to be released bycombustion in modern industrial processes.

Photophosphorylation is the production of ATP using the energy of sunlight. Photophosphorylation is made possible as a result of chemiosmosis. Chemiosmosis is the movement of ions across a selectively permeable membrane, down their concentration gradient. During photosynthesis, light is absorbed by chlorophyll molecules. Electrons within these molecules are then raised to a higher energy state. These electrons then travel through Photosystem II, a chain of electron carriers and Photosystem I. As the electrons travel through the chain of electron carriers, they release energy. This energy is used to pump hydrogen ions across the thylakoid membrane and into the space within the thylakoid. A concentration gradient of hydrogen ions forms within this space. These then move back across the thylakoid membrane, down their concentration gradient through ATP synthase. ATP synthase uses the energy released from the movement of hydrogen ions down their concentration gradient to synthesise ATP from ADP and inorganic phosphate.

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  • What Are the Products of Photosynthesis? - ThoughtCo

    All of the "matter/stuff" of a plant ultimately is produced as a result of this photosynthesis reaction

  • Simple photosynthesis question? | Yahoo Answers

    What is produced as a result of photosynthesis? Bbc gcse bitesize photosynthesis summarywhat gas released during …

  • Tiny 'forest' advances artificial photosynthesis - Futurity

    produce both of these as the result of a complex process known as photosynthesis

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Nutrition, digestion and excretion

To test this we used about 5 grams of leaves for each trial, and placed them in a gas chamber. On two sides of the gas chamber we placed two clear containers filled with water to serve as the temperature regulators. Behind the water containers we placed lights directed at the plant. We ran three trails for each different leaf we used. Each trail consisted of measuring the amount of CO2, with a CO2 gas sensor under blue light, red light, and green light. We made sure to switch the order of colors in each trail as an experimental control, to minimize error. Since we know that photosynthesis requires CO2, and we know that blue light pigments absorb the most light energy, we predicted that under blue light the most CO2 would be used.

Cellular Respiration Animation - Sumanas, Inc.

In this exercise, students at different tables varied the intensity of light responsible for photosynthesis in the spinach disks by varying the wattage of the bulbs. Recall that these disks were submerged in a sodium bicarbonate solution and subjected to a vacuum. This resulted in the utilization of carbon from the sodium bicarbonate as their primary source of carbon for photosynthesis (as opposed to carbon dioxide). The reasoning behind this is that the sunken disks in solution will produce oxygen as a product of photosynthesis and float to the surface. We should be able to count the number of disks as a representation of the rate of photosynthesis occurring in each experimental setup.

This tutorial introduces basics of chemical reactions

Plants produce carbon dioxide all the time becauseof respiration, but during the day (when there is light), they use CO2 forphotosynthesis, and fix CO2 into othermolecules, giving as end product O2more than CO2. Thisis why it is called carbon fixation. On the otherhand, when it is dark, plants do not have anenergy source for photosynthesis, and so cannotfix CO2 and produce O2. Theprocessis light-independent, andmore formally known as the Calvin cycle.During this cycle, 3 carbondioxide molecules are absorbed to produce thesmall sugar G3P(glyceraldehyde-3-phosphate) for the plant to useelsewhere. Two G3Pmolecules are required to make glucose.

ap sample lab 12 dissolved oxygen - Biology Junction

In respiration energy is released fromsugars when electrons associated with hydrogen are transported to oxygen (theelectron acceptor), and water is formed as a byproduct. The mitochondriause the energy released in this oxidation in order to synthesize ATP. Inphotosynthesis, the electron flow is reversed, the water is split (not formed),and the electrons are transferred from the water to CO2 and in theprocess the energy is used to reduce the CO2 into sugar. Inrespiration the energy yield is 686 kcal per mole of glucose oxidized to CO2,while photosynthesis requires 686 kcal of energy to boost the electrons from thewater to their high-energy perches in the reduced sugar -- light provides thisenergy.

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