Question
Plasma membrane _________.
- Protects cell organelles
- Selective permeable membrane
- Gives shape to the cell
- All of these
Hint:
A cell membrane is known as the outer layer of the cell performing specific functions.
The correct answer is: All of these
- The plasma membrane performs all the given functions.
- The plasma membrane is the outer layer of the cytoplasm that helps to protect the cell organelles from the outer environment. It maintains homeostasis and prevents any damage to the cell.
- The cell membrane or cytoplasmic membrane possesses a very crucial property, that is semi-permeable nature. This allows the entry of the selected types of molecules across the membrane and prevents the rest.
- A plasma membrane is also known for providing the shape to the cell. It gives structure and maintains its fluidity. Thus, it prevents the cell from collapsing.
There are certain transport proteins present in the cell membrane which help in the transportation of molecules across it.
Related Questions to study
Which of the following is lipid component present in cell membrane?
The hydrophobic tail of phospholipid is attached to the rigid layer of the cholesterol.
Which of the following is lipid component present in cell membrane?
The hydrophobic tail of phospholipid is attached to the rigid layer of the cholesterol.
What is the name of the part A in the diagram given below?
The phospholipid bilayer has integral proteins embedded in its structure.
What is the name of the part A in the diagram given below?
The phospholipid bilayer has integral proteins embedded in its structure.
Transport proteins, transport molecules by _________.
There are three types of transport - uniport, symport, antiport. Uniport is the transportation of a single molecule. Symport is the movement of two molecules in the same direction whereas antiport is the movement of two molecules in different directions.
Transport proteins, transport molecules by _________.
There are three types of transport - uniport, symport, antiport. Uniport is the transportation of a single molecule. Symport is the movement of two molecules in the same direction whereas antiport is the movement of two molecules in different directions.
The following picture is of ________.
The phospholipid component is a crucial part of the plasma membrane.
The following picture is of ________.
The phospholipid component is a crucial part of the plasma membrane.
______ is the basic unit of a living organism.
The cells perform various functions in the body. They consist of many organelles and their cytoplasm is the site for many chemical reactions.
______ is the basic unit of a living organism.
The cells perform various functions in the body. They consist of many organelles and their cytoplasm is the site for many chemical reactions.
Which among the following contains the cell membrane?
The cell membrane also maintains the shape of the cell and provide its fluidity.
Which among the following contains the cell membrane?
The cell membrane also maintains the shape of the cell and provide its fluidity.
Which of the following statement is incorrect?
The cell membrane maintains electric or cell potential. This feature is required for proper communication between two cells, or cells and its outer environment.
Which of the following statement is incorrect?
The cell membrane maintains electric or cell potential. This feature is required for proper communication between two cells, or cells and its outer environment.
Which of the following organelles maintain cell’s potential?
The cell membrane helps in the communication of cells with the outer environment.
Which of the following organelles maintain cell’s potential?
The cell membrane helps in the communication of cells with the outer environment.
What is the nature of lipid bilayer?
Hydrophilic refers to water-loving and hydrophobic refers to water-hating.
What is the nature of lipid bilayer?
Hydrophilic refers to water-loving and hydrophobic refers to water-hating.
_______ is responsible for selective uptake of material through cell membrane.
The plasma membrane consists of lipids, protein and carbohydrates.
_______ is responsible for selective uptake of material through cell membrane.
The plasma membrane consists of lipids, protein and carbohydrates.
______ are the components of cell membrane.
The cell membrane also consists of carbohydrates in its structure. They are known to help in cell-to-cell identification and interaction process.
______ are the components of cell membrane.
The cell membrane also consists of carbohydrates in its structure. They are known to help in cell-to-cell identification and interaction process.
What is the role of carbohydrates in cell membrane?
Carbohydrates prevent the movement of highly charged molecules across the membrane.
What is the role of carbohydrates in cell membrane?
Carbohydrates prevent the movement of highly charged molecules across the membrane.
Animal cell does not contain _______.
An animal cell is a eukaryotic cell.
Animal cell does not contain _______.
An animal cell is a eukaryotic cell.
The organism comprising of more than one cell is called as__________.
Examples of multicellular organisms are plants, animals, human beings, etc.
The organism comprising of more than one cell is called as__________.
Examples of multicellular organisms are plants, animals, human beings, etc.
The head of a phospholipid is ______.
The phospholipids are present in the cell membrane. It helps to create pores and the movement of certain molecules across the membrane.
The head of a phospholipid is ______.
The phospholipids are present in the cell membrane. It helps to create pores and the movement of certain molecules across the membrane.
