Question

IVOUCI 2 - ine selectively l'ermeable Cell Membrane == Small rapelurer le molecule. TOOO Ch . Smail surface poliso Inside the cell Membrane spanning protein Carbohydrae chain Glycopied 190911 COIN Toolloool18 .. Outside the cell 7. What two major types of biological molecules compose the majority of the cell membrane in Model 27 - The two major biomoleculo of plasma membrats are lipids and proteins 8. How many different protein molecules are found in Model 22 Cat Two typs of proteins are found in a plasma membrez 9. What is the difference between the position of the surface proteins and the membrane-spanning proteins? 10. When a carbohydrate chain is attached to a protein, what is the structure called 11. When a carbohydrate is attached to a phospholipid, what is the structure called? 12. What types of molecules are shown moving across the membrane? 13. Where exactly in the membrane do these molecules pass through? 14. How does the concentration of the small molecules inside the cell compare to that outside the cell 84 A solution containing both starch and glucose was placed inside the model cell repre cented helow. The model cell was then placed in a beaker containing distilled water. Biology H-I-I-S Identify one specific substance that should have been added to the distilled wa that observations regarding movement of starch could be made. [1]

Answer 1

The two major types of biological molecules whicg are present in abundance and compose the majority of the cell membrane are - proteins and lipids

• protein is present in large contents in the cell membrane, it is estimated that around 50% of the membrane volume is composed of the proteins. Membrane proteins are of three types - Integral proteins, peripheral proteins, and lipid-anchored proteins.
• lipid is a biomolecule that is soluble in non-polar solvents. the cell membrane consists three classes of lipids- phospholipids, glycolipids, sterols.