334794
Which of the following statements is incorrect about the plasma membrane?
1 Biochemical investigation clearly revealed that the cell membranes also possess protein and carbohydrate.
2 40% protein and 52 % lipids are in the membrane of human RBCs
3 Integral proteins are partially or totally buried in the membrane
4 Head of lipid is hydrophilic
Explanation:
52% Protein and 40% lipids are in the membrane of human RBCs.
BIOXI08: CELL-THE UNIT OF LIFE
334795
Lipid bilayer is
1 Hydrophilic
2 Hydrophobic
3 Hydrophilic and Hydrophobic
4 Depends on the surrounding medium
Explanation:
Phospholipids is amphipathic molecules. This means that they have a hydrophilic, polar phosphate head and two hydrophobic fatty acid tails. These components of the phospholipids cause them to orientate themselves, so the phosphate head can interact with water and the fatty acid tails can’t, hence forming a bilayer.
BIOXI08: CELL-THE UNIT OF LIFE
334796
Identify the structure used in active transport?
1 Tunnel protein
2 Carrier protein transport
3 Ion channels
4 Pumps
Explanation:
Active transport is an energy dependent process, in which ATP is utilised and Na+/K+ Pump is used.
BIOXI08: CELL-THE UNIT OF LIFE
334797
Which of the following are the component of plasma membrane?
1 Sugar
2 Protein
3 Cholesterol
4 All of these
Explanation:
All of them
BIOXI08: CELL-THE UNIT OF LIFE
334798
The polar molecules-
1 Can pass through bilayers of lipid of plasma membrane
2 Cannot pass through bilayers of lipid of plasma membrane
3 Need carrier proteins of the membrane to facilitate their transport across the membrane
4 Both 2 and 3
Explanation:
Lipid bilayers are non-polar due to which polar molecules cannot pass through it, they require a carrier protein of the membrane to facilitate their transport across the membrane.
334794
Which of the following statements is incorrect about the plasma membrane?
1 Biochemical investigation clearly revealed that the cell membranes also possess protein and carbohydrate.
2 40% protein and 52 % lipids are in the membrane of human RBCs
3 Integral proteins are partially or totally buried in the membrane
4 Head of lipid is hydrophilic
Explanation:
52% Protein and 40% lipids are in the membrane of human RBCs.
BIOXI08: CELL-THE UNIT OF LIFE
334795
Lipid bilayer is
1 Hydrophilic
2 Hydrophobic
3 Hydrophilic and Hydrophobic
4 Depends on the surrounding medium
Explanation:
Phospholipids is amphipathic molecules. This means that they have a hydrophilic, polar phosphate head and two hydrophobic fatty acid tails. These components of the phospholipids cause them to orientate themselves, so the phosphate head can interact with water and the fatty acid tails can’t, hence forming a bilayer.
BIOXI08: CELL-THE UNIT OF LIFE
334796
Identify the structure used in active transport?
1 Tunnel protein
2 Carrier protein transport
3 Ion channels
4 Pumps
Explanation:
Active transport is an energy dependent process, in which ATP is utilised and Na+/K+ Pump is used.
BIOXI08: CELL-THE UNIT OF LIFE
334797
Which of the following are the component of plasma membrane?
1 Sugar
2 Protein
3 Cholesterol
4 All of these
Explanation:
All of them
BIOXI08: CELL-THE UNIT OF LIFE
334798
The polar molecules-
1 Can pass through bilayers of lipid of plasma membrane
2 Cannot pass through bilayers of lipid of plasma membrane
3 Need carrier proteins of the membrane to facilitate their transport across the membrane
4 Both 2 and 3
Explanation:
Lipid bilayers are non-polar due to which polar molecules cannot pass through it, they require a carrier protein of the membrane to facilitate their transport across the membrane.
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BIOXI08: CELL-THE UNIT OF LIFE
334794
Which of the following statements is incorrect about the plasma membrane?
1 Biochemical investigation clearly revealed that the cell membranes also possess protein and carbohydrate.
2 40% protein and 52 % lipids are in the membrane of human RBCs
3 Integral proteins are partially or totally buried in the membrane
4 Head of lipid is hydrophilic
Explanation:
52% Protein and 40% lipids are in the membrane of human RBCs.
BIOXI08: CELL-THE UNIT OF LIFE
334795
Lipid bilayer is
1 Hydrophilic
2 Hydrophobic
3 Hydrophilic and Hydrophobic
4 Depends on the surrounding medium
Explanation:
Phospholipids is amphipathic molecules. This means that they have a hydrophilic, polar phosphate head and two hydrophobic fatty acid tails. These components of the phospholipids cause them to orientate themselves, so the phosphate head can interact with water and the fatty acid tails can’t, hence forming a bilayer.
BIOXI08: CELL-THE UNIT OF LIFE
334796
Identify the structure used in active transport?
1 Tunnel protein
2 Carrier protein transport
3 Ion channels
4 Pumps
Explanation:
Active transport is an energy dependent process, in which ATP is utilised and Na+/K+ Pump is used.
BIOXI08: CELL-THE UNIT OF LIFE
334797
Which of the following are the component of plasma membrane?
1 Sugar
2 Protein
3 Cholesterol
4 All of these
Explanation:
All of them
BIOXI08: CELL-THE UNIT OF LIFE
334798
The polar molecules-
1 Can pass through bilayers of lipid of plasma membrane
2 Cannot pass through bilayers of lipid of plasma membrane
3 Need carrier proteins of the membrane to facilitate their transport across the membrane
4 Both 2 and 3
Explanation:
Lipid bilayers are non-polar due to which polar molecules cannot pass through it, they require a carrier protein of the membrane to facilitate their transport across the membrane.
334794
Which of the following statements is incorrect about the plasma membrane?
1 Biochemical investigation clearly revealed that the cell membranes also possess protein and carbohydrate.
2 40% protein and 52 % lipids are in the membrane of human RBCs
3 Integral proteins are partially or totally buried in the membrane
4 Head of lipid is hydrophilic
Explanation:
52% Protein and 40% lipids are in the membrane of human RBCs.
BIOXI08: CELL-THE UNIT OF LIFE
334795
Lipid bilayer is
1 Hydrophilic
2 Hydrophobic
3 Hydrophilic and Hydrophobic
4 Depends on the surrounding medium
Explanation:
Phospholipids is amphipathic molecules. This means that they have a hydrophilic, polar phosphate head and two hydrophobic fatty acid tails. These components of the phospholipids cause them to orientate themselves, so the phosphate head can interact with water and the fatty acid tails can’t, hence forming a bilayer.
BIOXI08: CELL-THE UNIT OF LIFE
334796
Identify the structure used in active transport?
1 Tunnel protein
2 Carrier protein transport
3 Ion channels
4 Pumps
Explanation:
Active transport is an energy dependent process, in which ATP is utilised and Na+/K+ Pump is used.
BIOXI08: CELL-THE UNIT OF LIFE
334797
Which of the following are the component of plasma membrane?
1 Sugar
2 Protein
3 Cholesterol
4 All of these
Explanation:
All of them
BIOXI08: CELL-THE UNIT OF LIFE
334798
The polar molecules-
1 Can pass through bilayers of lipid of plasma membrane
2 Cannot pass through bilayers of lipid of plasma membrane
3 Need carrier proteins of the membrane to facilitate their transport across the membrane
4 Both 2 and 3
Explanation:
Lipid bilayers are non-polar due to which polar molecules cannot pass through it, they require a carrier protein of the membrane to facilitate their transport across the membrane.
334794
Which of the following statements is incorrect about the plasma membrane?
1 Biochemical investigation clearly revealed that the cell membranes also possess protein and carbohydrate.
2 40% protein and 52 % lipids are in the membrane of human RBCs
3 Integral proteins are partially or totally buried in the membrane
4 Head of lipid is hydrophilic
Explanation:
52% Protein and 40% lipids are in the membrane of human RBCs.
BIOXI08: CELL-THE UNIT OF LIFE
334795
Lipid bilayer is
1 Hydrophilic
2 Hydrophobic
3 Hydrophilic and Hydrophobic
4 Depends on the surrounding medium
Explanation:
Phospholipids is amphipathic molecules. This means that they have a hydrophilic, polar phosphate head and two hydrophobic fatty acid tails. These components of the phospholipids cause them to orientate themselves, so the phosphate head can interact with water and the fatty acid tails can’t, hence forming a bilayer.
BIOXI08: CELL-THE UNIT OF LIFE
334796
Identify the structure used in active transport?
1 Tunnel protein
2 Carrier protein transport
3 Ion channels
4 Pumps
Explanation:
Active transport is an energy dependent process, in which ATP is utilised and Na+/K+ Pump is used.
BIOXI08: CELL-THE UNIT OF LIFE
334797
Which of the following are the component of plasma membrane?
1 Sugar
2 Protein
3 Cholesterol
4 All of these
Explanation:
All of them
BIOXI08: CELL-THE UNIT OF LIFE
334798
The polar molecules-
1 Can pass through bilayers of lipid of plasma membrane
2 Cannot pass through bilayers of lipid of plasma membrane
3 Need carrier proteins of the membrane to facilitate their transport across the membrane
4 Both 2 and 3
Explanation:
Lipid bilayers are non-polar due to which polar molecules cannot pass through it, they require a carrier protein of the membrane to facilitate their transport across the membrane.