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Quiz 7
Mdcat-past-papers Quiz
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121. Plant cell wall is made up of:
lignin
hemicellulose
cutin
chitin
122. Endocytosis which involve ingestion of solid material is called:
solidocytosis
phagocytosis
pinocytosis
autocytosis
123. A phospholipid molecule has a head and two tails. Where are the tails found?
At the surface of membrane
In the interior of membrane
in the exterior of membrane
spanning of the membrane
124. Which of the following best describes the plasma membrane?
Adhesible
Permeable
impermeable
semipermeable
125. What is the cementing layer between two daughter cells called:
Primary wall
Secondary Wall
Middle lamella
Cell membrane
126. Protein layers are embedded in lipid bilayers, this was explained by:
Lock and key model
Induce fit model
Fluid mosaic model
Sandwich model
127. The layer of the plant cell wall formed at the time of cytokinesis is:
Primary wall
Middle Lamella
Secondary wall
Tertiary wall
128. Cell membrane is selectively permeable due to:
Proteins
Phospholipids
Cholesterol
Enzymes
129. Which molecules do not contribute to the formation of biological membrane?
Glycoproteins
Phospholipids
Glycolipids
Nucleoproteins
130. Chemically cell wall of fungi is made up of:
Cellulose
Lignin
Chitin
Murein
131. Adenylate cyclase in the cell membrane acts as:
channel protein
carrier protein
enzyme
receptor
132. Which part of plasma membrane controls the fluidity of the membrane:
Glycoprotein
carrier protein
lipid
Carbohydrate
133. Second most abundant bioelement in human body is:
Oxygen
Carbon
Hydrogen
Nitrogen
134. The basic structural framework of all types of membranes are:
Glycolipids
Glycoproteins
Lipoproteins
Nucleoproteins
135. Middle lamella is composed of:
Magnesium + sodium salts + pectin
Magnesium + potassium salts + pectin
Magnesium + calcium salts + pectin
Magnesium + calcium phosphate + pectin
136. Choose the correct sequence for permeability of molecules across the plasma membrane:
Sodium & lipids> Water/glucose> sodium
Water/glucose> lipids> sodium
Sodium > water/glucose>lipids
Lipids>water/Glucose>sodium
137. In which type of cells, cell wall is not present?
Plant cells
Bacterial cells
Liver cells
Fungal cells
138. The statement "the membrane is like a sea of lipids in which proteins are floating" represents:
Gorter & Grendel Model
J F Danielle & Davison Model
Robertson Model
S.J Singer and Nicholson Model
139. #NAME?
Membrane proteins
Membrane glycolipids
Membrane carbohydrates
Membrane cholesterol
140. Plasma membrane is differentially permeable membrane due to the presence of:
Carbohydrates
Proteins
Lipids
Vitamins
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