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Membrane Structure and Function

Membrane Structure and Function
In active transport, the membrane structure that functions is

cholesterol
integral proteins
carbohydrates
hydrophobic molecules

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Membrane Structure and Function
The movement of molecules across a membrane by passive transport does not require

an input of metabolic energy
vibrational energy
internal energy
none of these

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Membrane Structure and Function
Bacteriorhodopsin

All of these
contains primarily alpha-helical residues
is an integral membrane protein
absorbs light and pumps protons

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Membrane Structure and Function
The plasma membrane is a selectively permeable barrier due to presence of specific transport

carbohydrates
proteins
amino acids
none of these

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Membrane Structure and Function
Which type of molecule spans the membrane, from its inner to outer surface according to the Fluid mosaic model of cell membranes?

Cholesterol
Phospholipid
Protein
Carbohydrate

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Membrane Structure and Function
Pinocytosis occurs in

mitochondria of all cells
all eukaryotic cells
none of these
all prokaryotic cells

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