Why are all cells very small? Explain what limits the size of cells

1 answer:

7 0

<span>Cell Size is governed by several factors: The size of the cell is controlled by metabolic requirements. DNA must be available to produce the enzymes and proteins needed for proper functioning. A too small cell will not have enough DNA to support life and a cell too large will need an enormous amount of DNA to carry on its functions. A second restriction involves surface area to volume ratio. As the cell increases in size, the volume increases geometrically while the surface area increases arithmetically. Eukaryotic cells cope with these problems in that they contain membrane bound organelles. These organelles break up the volume of the cell performing distinct functions which cuts down on the raw materials needed. Each part of the cell does not need the same material to function.</span>

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nignag [31]

Answer:

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Explanation:

¡Espero que esto haya ayudado!

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What happens to the tension in the xylem when the stomata close and evaporation stops? It remains constant the moment the stomat

AVprozaik [17]

Answer:

Explanation:

What occurs when the stomata close and evaporation stops is that, the tension in the xylem continues to increase until the living cells of the leaf are fully hydrated. This happens according to the cohesion-tension theory of sap ascent.

This happens at night. Transpiration stops immediately when the stomata is closed. There is a cohesion between each water molecule and adhesion between the water molecules and the stem walls; water is held in the leaves ad stems when the stomata is closed this hereby increases the tension.

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daser333 [38]

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Explanation:

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