help with both please 23. A glass U-tube fit pass through). If the NaCI dissol o
ID: 196765 • Letter: H
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help with both please
23. A glass U-tube fit pass through). If the NaCI dissol of water utilized by living systems? ted in its center with a semipermeable membrane (which allows only water to left side contained pure water and the right side contained an identical volume of ved in water, describe what would occur. Be specific in your answer. How is this property 24, Different types of lipids comprise plasma membranes. How do they biochemically interact in terms membrane fluidity with respect to environmental changes?Explanation / Answer
23. A semipermeable membrane is that membrane which allows only some selected substances to pass through and don't allow some. In U-tube there are two region of higher and lower conc. Of NaCl. Since the membrane is impermeable to NaCl. A conc. gradient is set up which causes osmotically transport of solvent(water) to maintain equilibrium conc. In cells also the absorption of water takes place in same manner since cells have a higher conc. Of ions causes absorption of water.
24. Lipid plasma membranes are mainly of three type
Glycolipid plasma membrane - made up of carbohydrate and lipid and play role in cellular content recognition.
Phospholipid membrane is a lipid bilayer membrane consists of hydrophillic head and hydrophobic tail. Is provide channel for transport and maintain internal structure and regulates the content of cell.
Glycoprotein- membrane contain a variety of protein in membrane some of these are made up of carbohydrate and protein combine called as glycoprotein. This membrane perform antigen activity, cell signalling and cell adhesion etc function.
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