Phospholipid Molecules, Cholesterol, Carbohydrates
Trending Questions
Q.
According to the fluid mosaic model of the cell membrane, the proteins are located
On the surface of the membrane.
Buried in the membrane
Between lipid bilayer
Both A and B
Q. Which of the following statements is NOT correct about the phospholipid molecules in the plasma membrane?
- The polar heads face outward
- The nonpolar tails face inward
- The polar heads are hydrophobic
- The nonpolar tails are hydrophobic
Q. The best material for study of structure of cell membrane is
- liver cell of rat
- RBC of human
- RBC of frog
- cheek cell of human
Q.
Where are peripheral proteins present in the membrane?
Q. Which of the following molecules would not be found in the plasma membrane.
- Proteins
- Phospholipids
- Cholesterol
- Nucleic acids
Q. The most abundant types of lipids comprising the plasma membrane are
- Cholesterol
- Triglycerides
- Steroid
- Phospholipids
Q. Which of the following statements is NOT correct about the phospholipid molecules in the plasma membrane?
- The polar heads face outward
- The nonpolar tails face inward
- The polar heads are hydrophobic
- The nonpolar tails are hydrophobic
Q. even red that woronin body made up of plasma membrane
Q.
The feedback mechanism in cells means:
Cells are independent of each other in their functioning
Cells receive feedback from nature how to behave
One cells controls the behavior of other cell by signaling
Cells control their biochemical pathways where intermediate products of a pathway act as an inhibitor of the reaction
Q. What are integral and peripheral proteins?
Q. Which of the following statements best describes the chemical composition of the plasma membrane
- Plasma membrane is composed of two layers - one layer of the Proteins and one layer of the Phospholipids
- Plasma membrane is composed of equal number of Phospholipids, proteins and carbohydrates
- Plasma membrane is a bilayer of proteins with associated lipids and carbohydrates
- Plasma membrane is a phospholipid bilayer with associated protein and carbohydrates
Q. Select the correct option:
Given structural formula is correctly identified along with its related function by which of the following options?
- Cholesterol - A component of animal cell membrane
- Lecithin A component of cell membrane
- Triglyceride -An energy source
- Adenosine - A component of nucleic acids
Q. Why tails of lipids in the membrane are towards inner part?
- The tails is non-polar hydrocarbon and so, protected with an aqueous environment
- The tail is polar hydrocarbon and so, is protected from aqueous environment
- The non-polar or hydrophobic hydrocarbon trails of lipid, being on inner side ensure their protection from aqueous environment.
- The tail is hydrophilic so, it tends to be located in the aqueous inner side of membrane
Q. Which of the following is an amphipathic molecule in plasma membrane?
- Protein
- Carbohydrates
- Phospholipids
- All of the above
Q. Which of the following statements is NOT correct about the phospholipid molecules in the plasma membrane?
- The polar heads face outward
- The nonpolar tails face inward
- The polar heads are hydrophobic
- The nonpolar tails are hydrophobic
Q. Which of the following statements best describes the chemical composition of the plasma membrane
- Plasma membrane is composed of two layers - one layer of the Proteins and one layer of the Phospholipids
- Plasma membrane is composed of equal number of Phospholipids, proteins and carbohydrates
- Plasma membrane is a bilayer of proteins with associated lipids and carbohydrates
- Plasma membrane is a phospholipid bilayer with associated protein and carbohydrates
