What are the 3 important events that happen during light reaction?
The three important events that happen during the light reaction of photosynthesis are light absorption by chlorophyll, water splitting to release oxygen, protons, and electrons, and the generation of ATP and NADPH molecules used in the Calvin cycle.
How does photosynthesis occur in prokaryotic cells?
Prokaryotes do not perform photosynthesis. They are organisms that lack a cell nucleus, they don't even have chloroplast, to perform it. Plants, which are eukaryotes, photosynthesis takes place in the chloroplast.
How does this explain how soils absorbs plant nutrients?
Soil absorbs plant nutrients through various mechanisms such as ion exchange, mineral weathering, and organic matter decomposition. Plant roots take up nutrients in forms that are readily available, or they can modify the soil environment to release nutrients bound to soil particles. This process is essential for plants to grow and thrive.
Which stage of cellular respiration takes place outside of the mitochondrion?
Glycolysis takes place outside of the mitochondrion
What is function and structure of stroma?
The stroma of a plant is the region outside of the thylakoid space. This serves two functions in the both the light-dependent and light-independent (Calvin cycle) reactions. In the light-dependent reactions, the H+ ions that build up within the thylakoid begin to form a concentration gradient between the thylakoid and the stroma. As a result, the H+ ions need to diffuse into the stroma. In order to do this, the ions must travel through an enzyme known as ATP synthase. Once it does, the movement of H+ ions through ATP synthase into the stroma provides energy for ADP to become ATP. The ATP formed is an energy source to power the Calvin cycle. Now, the light-independent (Calvin cycle) reactions occur in the stroma.
How does food made in photosynthesis reach storage areas in the root?
Food produced in photosynthesis is transported as sugars (such as glucose) through the phloem, a vascular tissue in plants, from the leaves where they are produced to storage areas in the roots. This process is called translocation and is driven by a combination of osmotic pressure and active transport mechanisms. The stored food in the roots can be used for growth, maintenance, or reserves for future use.
How do you demonstrate the use or consumption of Co2 by a plant?
One way is to put them in a closed container of known volume, like a bell jar, and measure the amount of oxygen consumed or the carbon dioxide given off.
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It's the other way around. Plants take in CO2 and gives off O2. Place a plant in a closed system with a sensitive CO2 meter inside and another outside the container. The difference in the readings would be the CO2 that was used by the plant. Oxygen meters would tell you how much oxygen is given off. The formula for photosynthesis is:
2n CO2 + 2n H2O + photons→ 2(CH2O)n+ 2n O2carbon dioxide + water + light energy → carbohydrate + oxygen
Where does the aerobic process of cellular respiration take place?
Aerobic respiration is an almost universal process - carried out by most animals and plants.
It consists of several stages, the first of which is shared with anaerobic respiration and takes place in the cytoplasm of cells. The purely aerobic reactions take place inside mitochondria, small specialized organelles within the cytoplasm of all body cells. More active cells have more mitochondria.
What are the yellow accessory pigments sometimes found in leaves called?
The yellow accessory pigments found in leaves are called carotenoids. They help plants capture light energy for photosynthesis and also contribute to the yellow, orange, and red colors of leaves in the fall.
False. The light reactions of photosynthesis require light to convert solar energy into chemical energy, while the dark reactions (Calvin cycle) do not directly rely on light and can occur in both light and dark conditions. However, the dark reactions are indirectly dependent on the products of the light reactions.
Too much can decrease the rate of Photosynthesis... Apparently..
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Plants NEED CO2 to conduct photosynthesis. Increasing CO2 increases the rate of photosynthesis- to a point.
What starts light reaction in photosynthesis?
The light reaction in photosynthesis is initiated by the absorption of light by chlorophyll molecules in the thylakoid membranes of chloroplasts. This light energy is then used to split water molecules into oxygen, protons, and electrons, which kickstarts the process of energy production in the form of ATP and NADPH.
Photosynthesis is the process at which plants convert Carbon Dioxide (CO2- one part carbon 2 parts oxygen) into organic compounds or sugars that help the plant survive. As a result they emit clean Oxygen or O2 which is vital for our being. That is why we need to do our best to preserve, protect, and plant trees and other plants. (That is my "3 P's.")
... closing the stomata prevents carbon dioxide from entering the leaves, which is needed for photosynthesis. This can lead to a reduced production of glucose and energy within the plant, ultimately affecting its growth and health.
True. During photosynthesis, plants use sunlight to convert carbon dioxide and water into glucose (sugar) and oxygen. This process allows plants to store energy in the form of chemical bonds within sugar molecules.
Which process during photosynthesis involves addition of hydrogen?
The process during photosynthesis that involves the addition of hydrogen is the reduction of NADP+ to NADPH. This occurs during the light-dependent reactions, where light energy is used to drive the conversion of NADP+ into NADPH by adding hydrogen ions and electrons from water.
What cycle is also called the dark reaction in photosynthesis?
The cycle that is also called the dark reaction in photosynthesis is the Calvin cycle. This process occurs in the stroma of chloroplasts and involves the fixation of carbon dioxide into glucose molecules using energy from ATP and NADPH produced in the light-dependent reactions.
What happens to the power of the objective as the light intensity increases?
Going to high power on a microscope decreases the area of the field of view. The field of view is inversely proportional to the magnification of the objective lens. ... The specimen appears larger with a higher magnification because a smaller area of the object is spread out to cover the field of view of your eye
What structural feature allows co2 from the air to enter the leaf?
Small openings on the underside of the leaf called stomata allow CO2 to enter and O2 to exit during photosynthesis. Each stoma is surrounded by guard cells that control its opening and closing to regulate gas exchange.
Water is produced during which stage in cellular respiration?
Water is produced during the electron transport chain stage of cellular respiration. It is a byproduct of the electron transport chain when oxygen is the final electron acceptor, leading to the formation of water molecules.
How does ATP synthase obtain the energy to produce ATP?
ATP synthase obtains the energy to produce ATP through the flow of protons across a membrane. The proton gradient creates a force that drives the rotation of ATP synthase, allowing it to catalyze the synthesis of ATP from ADP and inorganic phosphate.
Four of the five answers listed below are part of the light-independent reactions?
The light-independent reactions, or Calvin cycle, are responsible for fixing carbon dioxide into sugars. Glycolysis, Krebs cycle, and electron transport chain are part of the light-dependent reactions, which involve capturing and converting light energy into chemical energy. Light harvesting is also part of the light-dependent reactions, where light is absorbed by pigments to initiate the process.
What is purchasing products or materials in other nations and bringing them into ones country?
Importing is the process of purchasing products or materials from other nations and bringing them into one's country. This can involve custom duties, tariffs, and compliance with trade regulations set by national governments.
Is the formation of ATP an endergonic reaction?
No, the formation of ATP is an exergonic reaction, meaning it releases energy. This is because the conversion of ADP and inorganic phosphate to ATP is coupled with cellular processes that release energy, such as the breakdown of glucose during cellular respiration.