Question

151. carbohydrates present in the plasma membrane are in the forms ofa) Starch
b) Cellulose
c) Hemicellulose
d) Glycoproteins and glycolipids
152. Cell recognition and adhesion occurs due to
biochemicals of cell membrane named.
a) Glucoproteins and glycolipids
b) Proteins and fats
c) Proteins and carbohydrates
d) Lipoproteins
153. Who proposed the concept of unit membrane for
structure of lipoproteins triplet.
a) Robertson
b) Seifriz
c) Danielli and Davson d) Nageli and cramer
154. According to the unit membrane model of
Robertson, the thickness of cell membrane is about
a) 1.0 nm
b) 150 nm
c) 7.5 nm
d) 200 nm
155. Which one of the following features is predicted
by Singer and Nicolson fluid mosaic model of
biological membrane.
a) Membrane lipid is primarily in a monolayer
b) Membrane proteins may diffuse laterally
c) Membrane lipids do not diffuse laterally
d) Membrane lipids freely flip-flop.
156. Which of the following statements correctly
characterizes membrane protesin.
a) Content is constant in cell with different
functions
b) Membrane protein includes integral protein
associated with extracellular surface
c) Polypeptide chains can extend accors the lipid
bilayer once or multiple times
d) Membrane protein includes peripheral proteins
beyond to phospholipids in the membrane
bilayer
157. The most abundant lipid in cell membrane is
a) Cutin
b) Steriod
c) Cholesterol
d) Phospholipid
158. Which of the following structures control the
transport of material into and out of living cell.
a) Centrosome
b) Cell membrane
c) Cell wall
d) Ribosome
159. When a cell engulfs or surrounding a particle and
forms a vesicle around it. The phenomenon is
known as
a) Exocytosis
b) Endocytosis
c) Phagocytosis d) None of these
160. The process of sucking fluid from cell surface i
called
a) Phagocytosis b) Pinocytosis
c) cyclosis .d) osmosis​

Answer 1

B
A
C
D
C
A
D
B

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