334799
Which of the following membrane proteins lie on the surface of the cell?
1 Integral proteins
2 Peripheral proteins
3 Both (1) and (2)
4 Conjugate proteins
Explanation:
Peripheral proteins
BIOXI08: CELL-THE UNIT OF LIFE
334800
The most important function of plasma membrane is that it
1 Cell growth
2 Cell division
3 Transports the molecules across
4 Both (1) and (2)
Explanation:
One of the most important functions of the plasma membrane is the transport of the molecules across it
BIOXI08: CELL-THE UNIT OF LIFE
334801
Why tails of lipids in the membrane are towards inner part?
1 This ensures that the polar tail of saturated hydrocarbons is protected from the aqueous environment
2 This ensures that the nonpolar tail of unsaturated hydrocarbons is protected from the aqueous environment
3 This ensures that the nonpolar tail of saturated hydrocarbons is protected from the aqueous environment
4 This ensures that the nonpolar head of saturated hydrocarbons is protected from the aqueous environment
Explanation:
This ensures that the nonpolar tail of saturated hydrocarbons is protected from the aqueous environment
BIOXI08: CELL-THE UNIT OF LIFE
334802
Select the correct statement from the following regarding cell membrane:
1 Na+ and K+ ions move across cell membrane by passive transport.
2 Proteins make up 60 to 70% of the cell membrane.
3 Lipids are arranged in bilayer with polar head towards the innerpart
4 Fluid mosaic model of cell membrane was proposed by Singer and Nicolson
Explanation:
According to the fluid mosaic model, of cell membrane structure proposed by Singer and Nicolson (1972). Plasma membrane contains about 50-60% proteins and 50-40% lipids. Lipids form bilayer with hydrophilic heads pointing outwards. Cell membrane allows transport of some molecules by passive transport e.g., water, neutral solutes while some are transported actively e.g. Na+ and K+ pump.
334799
Which of the following membrane proteins lie on the surface of the cell?
1 Integral proteins
2 Peripheral proteins
3 Both (1) and (2)
4 Conjugate proteins
Explanation:
Peripheral proteins
BIOXI08: CELL-THE UNIT OF LIFE
334800
The most important function of plasma membrane is that it
1 Cell growth
2 Cell division
3 Transports the molecules across
4 Both (1) and (2)
Explanation:
One of the most important functions of the plasma membrane is the transport of the molecules across it
BIOXI08: CELL-THE UNIT OF LIFE
334801
Why tails of lipids in the membrane are towards inner part?
1 This ensures that the polar tail of saturated hydrocarbons is protected from the aqueous environment
2 This ensures that the nonpolar tail of unsaturated hydrocarbons is protected from the aqueous environment
3 This ensures that the nonpolar tail of saturated hydrocarbons is protected from the aqueous environment
4 This ensures that the nonpolar head of saturated hydrocarbons is protected from the aqueous environment
Explanation:
This ensures that the nonpolar tail of saturated hydrocarbons is protected from the aqueous environment
BIOXI08: CELL-THE UNIT OF LIFE
334802
Select the correct statement from the following regarding cell membrane:
1 Na+ and K+ ions move across cell membrane by passive transport.
2 Proteins make up 60 to 70% of the cell membrane.
3 Lipids are arranged in bilayer with polar head towards the innerpart
4 Fluid mosaic model of cell membrane was proposed by Singer and Nicolson
Explanation:
According to the fluid mosaic model, of cell membrane structure proposed by Singer and Nicolson (1972). Plasma membrane contains about 50-60% proteins and 50-40% lipids. Lipids form bilayer with hydrophilic heads pointing outwards. Cell membrane allows transport of some molecules by passive transport e.g., water, neutral solutes while some are transported actively e.g. Na+ and K+ pump.
334799
Which of the following membrane proteins lie on the surface of the cell?
1 Integral proteins
2 Peripheral proteins
3 Both (1) and (2)
4 Conjugate proteins
Explanation:
Peripheral proteins
BIOXI08: CELL-THE UNIT OF LIFE
334800
The most important function of plasma membrane is that it
1 Cell growth
2 Cell division
3 Transports the molecules across
4 Both (1) and (2)
Explanation:
One of the most important functions of the plasma membrane is the transport of the molecules across it
BIOXI08: CELL-THE UNIT OF LIFE
334801
Why tails of lipids in the membrane are towards inner part?
1 This ensures that the polar tail of saturated hydrocarbons is protected from the aqueous environment
2 This ensures that the nonpolar tail of unsaturated hydrocarbons is protected from the aqueous environment
3 This ensures that the nonpolar tail of saturated hydrocarbons is protected from the aqueous environment
4 This ensures that the nonpolar head of saturated hydrocarbons is protected from the aqueous environment
Explanation:
This ensures that the nonpolar tail of saturated hydrocarbons is protected from the aqueous environment
BIOXI08: CELL-THE UNIT OF LIFE
334802
Select the correct statement from the following regarding cell membrane:
1 Na+ and K+ ions move across cell membrane by passive transport.
2 Proteins make up 60 to 70% of the cell membrane.
3 Lipids are arranged in bilayer with polar head towards the innerpart
4 Fluid mosaic model of cell membrane was proposed by Singer and Nicolson
Explanation:
According to the fluid mosaic model, of cell membrane structure proposed by Singer and Nicolson (1972). Plasma membrane contains about 50-60% proteins and 50-40% lipids. Lipids form bilayer with hydrophilic heads pointing outwards. Cell membrane allows transport of some molecules by passive transport e.g., water, neutral solutes while some are transported actively e.g. Na+ and K+ pump.
334799
Which of the following membrane proteins lie on the surface of the cell?
1 Integral proteins
2 Peripheral proteins
3 Both (1) and (2)
4 Conjugate proteins
Explanation:
Peripheral proteins
BIOXI08: CELL-THE UNIT OF LIFE
334800
The most important function of plasma membrane is that it
1 Cell growth
2 Cell division
3 Transports the molecules across
4 Both (1) and (2)
Explanation:
One of the most important functions of the plasma membrane is the transport of the molecules across it
BIOXI08: CELL-THE UNIT OF LIFE
334801
Why tails of lipids in the membrane are towards inner part?
1 This ensures that the polar tail of saturated hydrocarbons is protected from the aqueous environment
2 This ensures that the nonpolar tail of unsaturated hydrocarbons is protected from the aqueous environment
3 This ensures that the nonpolar tail of saturated hydrocarbons is protected from the aqueous environment
4 This ensures that the nonpolar head of saturated hydrocarbons is protected from the aqueous environment
Explanation:
This ensures that the nonpolar tail of saturated hydrocarbons is protected from the aqueous environment
BIOXI08: CELL-THE UNIT OF LIFE
334802
Select the correct statement from the following regarding cell membrane:
1 Na+ and K+ ions move across cell membrane by passive transport.
2 Proteins make up 60 to 70% of the cell membrane.
3 Lipids are arranged in bilayer with polar head towards the innerpart
4 Fluid mosaic model of cell membrane was proposed by Singer and Nicolson
Explanation:
According to the fluid mosaic model, of cell membrane structure proposed by Singer and Nicolson (1972). Plasma membrane contains about 50-60% proteins and 50-40% lipids. Lipids form bilayer with hydrophilic heads pointing outwards. Cell membrane allows transport of some molecules by passive transport e.g., water, neutral solutes while some are transported actively e.g. Na+ and K+ pump.
