Budowblonykarta ang 1

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Budowblonykarta ang 1

  1. 1. Build and features of biological membranes. 1. Mark and sign these elements in the illustration: (glycolipides, surface proteins, transmembrane proteins, glycoproteins, molecule of cholesterol, phospholipid molecule) 2. Name functions of biological membranes. ........................................................................................................................................... ........................................................................................................................................... 3. Write which properties of biological membranes the following descriptions relate to: The feature is demonstrated by the fact that each layer has a unique lipid composition and its own set of embedded proteins. ..................................................................... . It is due to the constant movement of phospholipids. In animal cells is regulated by cholesterol ........................................................................................... . Only small polar molecules can pass through the membrane but small polar molecules penetrate to a limited degree. Transport of ions and large polar molecules without the charge requires the participation of the relevant membrane proteins.................................................................................................................. . 4. Construct the table comparing modes of transport(passive, active) through the membrane, consider in it direction of transport, the presence of protein carriers, the proportion of energy (ATP) in transport and an example of transmitted substances. 5. Identify and label illustrated modes of transport through the cell membrane.

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