What is the structure of the plasma membrane? 1. The plasma membrane is responsible for controlling the entry and exit of substances from the cell...
What is the structure of the plasma membrane?
1. The plasma membrane is responsible for controlling the entry and exit of substances from the cell.
2. The plasma membrane is a trilaminar structure composed of lipids and proteins.
3. The fluid mosaic model of the plasma membrane was proposed by Singer and Nicholson.
4. The plasma membrane is a rigid structure that does not allow the movement of lipids and proteins.
5. The plasma membrane has selective permeability, allowing the passage of solvents and some types of solutes.
a) 1, 2 and 3 are correct.
b) 2, 3 and 5 are correct.
c) 1, 4 and 5 are correct.
d) 2, 4 and 5 are correct.
e) 1, 3 and 5 are correct.
1. The plasma membrane is responsible for controlling the entry and exit of substances from the cell.
2. The plasma membrane is a trilaminar structure composed of lipids and proteins.
3. The fluid mosaic model of the plasma membrane was proposed by Singer and Nicholson.
4. The plasma membrane is a rigid structure that does not allow the movement of lipids and proteins.
5. The plasma membrane has selective permeability, allowing the passage of solvents and some types of solutes.
a) 1, 2 and 3 are correct.
b) 2, 3 and 5 are correct.
c) 1, 4 and 5 are correct.
d) 2, 4 and 5 are correct.
e) 1, 3 and 5 are correct.
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Ed 
A alternativa correta é a letra B) 2, 3 e 5 estão corretas. A membrana plasmática é uma estrutura trilaminar composta por lipídios e proteínas, e o modelo do mosaico fluido da membrana plasmática foi proposto por Singer e Nicholson. A membrana plasmática tem permeabilidade seletiva, permitindo a passagem de solventes e alguns tipos de solutos.
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