Structural lipids of cell membrane are
Simple lipid
Chromolipids
Steroid
Phospholipids
Related Questions
Most common type of lipids found in plasma membrane is A and they show B__ movement with in the plasma membrane. Choose the most appropriate option to fill A and B.
Phospholipids; Lateral
Glycolipids; Transverse
Cholesterol; Rotational
Steroids; Flip-flop
The fluid mosaic model describes the cell membrane as:
A rigid, static layer
A solid barrier
A dynamic structure with embedded proteins
A single layer of phospholipids
The thickness of unit membrane is
A widely accepted, improved model of cell membrane is
Fluid mosaic model
Robertson’s model
Danielli and Davson’s mod
Unit membrane model
Cell membrane in animals is composed mainly of the molecules of?
phospholipids
carbohydrates
nucleic acids
proteins
Plasma membrane helps in
Transportation of only water in and out of cell
Protein synthesis
Osmoregulation
Nucleic acid synthesis
Structural lipids of cell membrane are
Simple lipid
Chromolipids
Steroid
Phospholipids
Which of the following is NOT a primary function of cell membrane proteins?
Transporting molecules across the membrane
Acting as receptors for signaling molecules
Synthesizing lipids
Providing structural support to the membrane
A researcher is studying the transport of a novel molecule across a synthetic lipid bilayer. They observe that the molecule moves down its concentration gradient without the need for any membrane proteins or energy input. However, the rate of transport is significantly slower than predicted for simple diffusion. Which of the following BEST explains this observation?
The molecule is very large and its size restricts diffusion through the membrane.
The molecule is charged and is repelled by the hydrophobic core of the bilayer.
The molecule is polar and its passage is hindered by the hydrophobic core of the bilayer.
The molecule is binding to a specific receptor on the membrane surface, slowing its diffusion.
Fluid mosaic model was given by
Beadle and Tatum
Jacob and Monod
Singer and Nicolson
Watson and Crick
