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With reference to Plasma Membrane, considering the following statements: 1. flexibility of the cell membrane also enables the cell to engulf in food and other material from its external environment. 2. The cell membrane consists of a lipid bilayer that is impermeable. Which of the statements given above is/are correct?

With reference to Plasma Membrane, considering the following statements: 1. flexibility of the cell membrane also enables the cell to engulf in food and other material from its external environment. 2. The cell membrane consists of a lipid bilayer that is impermeable. Which of the statements given above is/are correct? Correct Answer 1 only

  • The cell membrane, also called the plasma membrane, is found in all cells
  • Separates the interior of the cell from the outside environment.
  • The cell membrane consists of a lipid bilayer that is semipermeable.Hence statement 2 is not correct.
  • The cell membrane regulates the transport of materials entering and exiting the cell.
  • The plasma membrane is flexible and is made up of organic molecules called lipids and proteins.
  • The flexibility of the cell membrane also enables the cell to engulf in food and other material from its external environment. Hence statement 1 is correct.

Related Questions

Which of the following statements are correct regarding the general difference between cell and nuclear membranes? 1. A cell membrane occurs in both Eukaryotes and Prokaryotes while a Nuclear membrane occurs only in Eukaryotes.  2. Both cell membrane and nuclear membrane persists throughout the lifetime of a cell. 3. The main feature of the nuclear membrane is the presence of two lipid bilayer structures while a cell membrane has single lipid bilayer structures. Select the correct answer using the code given below.
Which of the following statements are true in case of fluid-mosaic model for cell membrances
P. Between 5 - 8 nm thick and appear trilaminar when viewed in cross-section under electron microscope
Q. Less than 1 nm thick and consist of a layer of protein sandwitched between two layers of phospholipids
R. In the lipid bilayer, proteins are embedded at irregular intervals and held by hydrophilic interactions between lipids and hydrophilic domains of the proteins
S. The protein domains exposed on one side of the lipid bilayer are different from those exposed on the other side
When electroporation is used for introducing DNA into mammalian cell
P. A carrier for DNA is not required.
Q. The lipid bilayer (membrane) interacts with an electric pulse to generate permeation sites.
R. The viability of the cell becomes approximately zero percent.
S. The first step involves absorption of DNA on the cell membrane.
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With reference to the cell, consider the following statements: 1. Each cell acquires its structure and ability to function because of the organization of its membrane and organelles in specific ways.  2. Cells are enclosed by a plasma membrane composed of lipids and proteins. 3. Most plant cells have large membranous organelles called plastids, which are of two types – chromoplasts and leucoplasts. Which of the above statement is/are correct?
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In the New Year’s party 500 were invited. 200 people opted for Indian food, 150 eaten Italian food and 100 people taken continental food. 14 people have taken both Indian and Italian food, 10 people have taken both Italian and continental food and 15 people have eaten both Indian and continental food. 6 people have taken all three kind of food. Find how many people have only Italian food?
Which cell theory proved that the quasi-fluid nature of lipid enables lateral movement of proteins within the overall bilayer?