What is produced in photosynthesis
Specifically, the light is converted into two molecules to be used during the second stage of photosynthesis. The second stage of photosynthesis is called the light-independent reaction because sunlight is not necessary for it to occur. In this stage, the two molecules formed during the light-dependent reaction work together to produce glucose.
Glucose is a sugar that many plants, animals and fungi use for energy. In plants, glucose is produced as a result of photosynthesis. Plants need the energy glucose provides in order to grow and reproduce.
Glucose is also required for the process of cellular respiration, in which plants convert carbon dioxide from the air into oxygen. Because plants rely on sunlight to make glucose, inadequate sunlight can be a problem for plants that live in shady or cloudy areas. To deal with this problem, most plants store glucose inside their bodies to use when sunlight is scarce. Plants usually store glucose as starch.
Starch granules can be found inside plant cells, in organelles called amyloplasts. Without glucose, plants would not have the energy necessary to grow, reproduce or carry out cellular respiration. This means that without glucose, plant life could not exist on Earth. You can think of the reactants as the ingredients for preparing a meal and the products as the different dishes in that meal.
Therefore, to produce one molecule of glucose and 6 molecules of oxygen gas , a plant needs 6 molecules of carbon dioxide and 6 molecules of water. Plants take in carbon dioxide from the air through small openings in their leaves called stomata. Some plants most monocots have stomata on both sides of their leaves, and others dicots and a few monocots only have stomata on the underside, or lower epidermis.
In leaves, the xylem and phloem are contained in the vascular bundle. Once inside the leaf, the carbon dioxide and water molecules move into the cells of the mesophyll, the layer of ground tissue between the upper and lower epidermis.
Within these cells, organelles called chloroplasts use the carbon dioxide and water to carry out photosynthesis. Plant cells have special organelles called chloroplasts, which serve as the sites for the reactions that make up photosynthesis.
Their thylakoid membranes contain a pigment called chlorophyll, which absorbs photons light energy from the sun, initiating the light-dependent reactions that take place within the thylakoids. During these reactions, water molecules H 2 O are broken down. Did you know that oxygen is actually a waste product of photosynthesis? Although the hydrogen atoms from the water molecules are used in the photosynthesis reactions, the oxygen molecules are released as oxygen gas O 2. This is good news for organisms like humans and plants that use oxygen to carry out cellular respiration!
Oxygen passes out of the leaves through the stomata. It enters leaves through the stomata. Water enters the plant through the roots, and is transported to the leaves in the xylem. Oxygen is formed as the waste product. Some is used for respiration by the plant. The excess is released from the leaves, making it available for respiration to animals and many microorganisms.
During the light, provided the rate of photosynthesis is sufficiently high, plants, give out oxygen. The overall reaction for photosynthesis as given above is a simplification. Photosynthesis involves several different chemical reactions, but these can be summarised in two main stages. In the first reaction, energy is used to split water molecules into hydrogen and oxygen.
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