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A: Mesophyll cell B: Chloroplast C: Vascular tissue D: Bundle sheath cell E: Stoma F: Vascular tissue 1. CO 2 is fixed to produce a four-carbon molecule (malate or aspartate). 2. The molecule exits the cell and enters the bundle sheath cells. 3. It is then broken down into CO 2 and pyruvate. CO 2 enters the Calvin cycle to produce carbohydrates. 4.
CO 2 is excreted from the cell via diffusion into the blood stream, where it is transported in three ways: Up to 7% is dissolved in its molecular form in blood plasma. About 70-80% is converted into hydrocarbonate ions, The remainder binds with haemoglobin in red blood cells, is carried to the lungs, and exhaled. [11]
Cellular respiration may be described as a set of metabolic reactions and processes that take place in the cells of organisms to convert chemical energy from nutrients into ATP, and then release waste products. [1] Cellular respiration is a vital process that occurs in the cells of all [[plants and some bacteria ]].
Carbohydrates, which store energy in a form that can be used by living cells. [2] Lectin, for binding proteins. [28] Monosaccharide, simple sugars, including glucose and fructose. [2] Disaccharides, sugar soluble in water, including lactose, maltose, and sucrose. [2] Starch, made of amylose and amylopectin, plants energy storage. [2]
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Cell biology (also cellular biology or cytology) is a branch of biology that studies the structure, function, and behavior of cells. [1] [2] All living organisms are made of cells. A cell is the basic unit of life that is responsible for the living and functioning of organisms. [3] Cell biology is the study of the structural and functional ...
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It forms a protective covering on the leaf vein and consists of one or more cell layers, usually parenchyma. Loosely-arranged mesophyll cells lie between the bundle sheath and the leaf surface. The Calvin cycle is confined to the chloroplasts of these bundle sheath cells in C 4 plants. C 2 plants also use a variation of this structure. [1]