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Biochemistry - Membrane Structure and Functions

Exercise : Membrane Structure and Functions - Section 1
  • Membrane Structure and Functions - Section 1
6.
In Fluid mosaic model, the biological membrane can be viewed as
two dimensional solutions of oriented lipids and globular proteins
three dimensional solutions of oriented lipids and globular proteins
two dimensional solutions of oriented lipids and carbohydrate
three dimensional solutions of oriented lipids and carbohydrate
Answer: Option
Explanation:
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7.
Membrane lipids are
hydrophilic
hydrophobic
ampiphillic
none of these
Answer: Option
Explanation:
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8.
Pinocytosis occurs in
all eukaryotic cells
all prokaryotic cells
mitochondria of all cells
none of these
Answer: Option
Explanation:
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9.
Exocytosis is the secretion of proteins
out of the cell across the plasma membrane into the extracellular space
out of the cell across the plasma membrane into the intracellular space
is the uptake of macromolecules from the extracellular space into the cell across the plasma membrane
is the uptake of macromolecules from the intracellular space into the cell across the plasma membrane
Answer: Option
Explanation:
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10.
The membrane proteins that catalyze active transport reactions differ from soluble enzymes as
they are permanently changed during the reaction
the substrates of the reaction are all outside the cell
they do not enhance the rates of reaction
the products of the reaction move in a specific direction
Answer: Option
Explanation:
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