Mutigle Chrice (2pts ah-hydrate layer on the plaa menn inudes allo the oloving e

Question

Mutigle Chrice (2pts ah-hydrate layer on the plaa menn inudes allo the oloving ect (a) Adhesice b) Recognition (a) Act as a membrane protein (b) Act as a membrane channel peotein tranigport protcin)Act as a memsbrane peotcins roceptor 3. Which stractures a64 to the fluidity of the plama b) ATP 4. Which encyme ensures there is an equal distribution of newly eures here s Cll are vone of the ab (b) Spectrin 5. Carbohydrate layer on the plasma membrane d) trasferase tci Gives a cellits distinctive characteristics enponest of the cots in RC Matations in this protcis develop s form of (b) Cell Recognitice cse to RBCs to devekop a faniemed shape, muking them estresdly trapile (b) Spectram 7. Na d) Porins pumps function is to (a) Purop Na into the cell (b) Pump Nar out of the cel Ca pump inchade all of the following ENCEPT (a) te is an ATPase (c) pump Na- ieo and out of the cel d) Pump K+out of the cel 8. c) Pump Car out of the cell (b) Pump Ca+ into the cell (a) Ligand gatod (b) Vonage gated chaneol is controled by the binding of some maolocules to the chae chansel is coatrolled by a mechanical force appliod to the chamnel 10 The opening of a (a) Ligand gated (b) Voltage gaed I1. The (a) Ligand ganed (b) Vohage gated (c) Plasma wal di Cell wall (c) Cholestero (c) Glycolipds (d) Nucleic acids (a) Proteins ie) Cholestero (a) Proteins (b) Phospholipids (c) Glycolipids d) Nuclcic acids 15. The (b) False

Explanation / Answer

1. a - Carbohydrates forms a covalent link with proteins or lipids and  are also a part of plasma membranes, and function as adhesion because of this covalent linking.

2.a - Bacteriorhodospin function as a proton pump which uses light energy to move protons across the membrane out of the cell. It is a membrane transport protein.

3 . None of these

Saturated and unsaturated fatty acid chain,temperature and cholesterol affects the fluidity of plasma membrane.

4.a - Flipases

They are responsible for equal distribution of newly synthesised phospholipids across the cell membrane.they are transmembrane lipid transportal proteins and are presnt in the membrane helps in the movement of phospholipid molecule .

5.d -carbohydrate in plasma membrane have many roles . It act as receptors increases stability and it also forms covalent link with proteins and lipids. It helps in increased immune response.

6.b -Spectrin, the major red cell membrane protein, is largely responsible for maintaining the normal red cell shape and overall morphology.

7. b - Na+ pumps function is to pump Na+ out of the cell and k+ into the cell.

8b. it pumps calcium ions back into the sarcoplasmic reticulum, reducing the calcium level around the actin and myosin filaments and allowing the muscle to relax.

9.a ligand gated channel

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