MCQ’S ON PLASMA MEMBRANE
1. In the plasma membrane, lipid molecules are arranged in
(a) head parallel
(b) alternate
(c) scattered
(d) series
Answer: (a)
2. Ion carriers are located in
(a) Plasma membranes
(b) Cell wall
(c) Nucleus
(d) Cellular space
Answer: (a)
3. In the plasma membrane, the best method to study the properties of integral membrane proteins is
(a) atomic force microscopy
(b) freeze-fracture analysis and electron microscopy
(c) cryo-sectioning and electron microscopy
(d) all of the above
Answer: (b)
4. In the plant cell, this layer is present nearest to the plasma membrane
(a) Tonoplast
(b) Middle lamella
(c) secondary wall
(d) primary wall
Answer: (c)
5. Beetroot, if kept in cold water, anthocyanin does not come out due to plasma membrane
(a) Dead
(b) differentially permeable
(c) permeable to anthocyanins
(d) Impermeable to anthocyanins
Answer: (d)
6. Plasma membrane is made up of
(a) A protein, a lipid and a cellulose layer
(b) Bimolecular lipid layer surrounded by protein layers
(c) A protein layer between two lipid layers
(d) A lipid layer between two protein layers
Answer: (b)
6. Ion carriers are located in
(a) Plasma membranes
(b) Cell wall
(c) Nucleus
(d) Cellular space
Answer: (a)
7. In the plasma membrane, the best method to study the properties of integral membrane proteins is
(a) atomic force microscopy
(b) freeze-fracture analysis and electron microscopy
(c) cryo-sectioning and electron microscopy
(d) all of the above
Answer: (b)
8. In the plant cell, this layer is present nearest to the plasma membrane
(a) Tonoplast
(b) Middle lamella
(c) secondary wall
(d) primary wall
Answer: (c)
9. Beetroot, if kept in cold water, anthocyanin does not come out due to plasma membrane
(a) Dead
(b) differentially permeable
(c) permeable to anthocyanins
(d) Impermeable to anthocyanins
Answer: (d)
10. Plasma membrane is made up of
(a) A protein, a lipid and a cellulose layer
(b) Bimolecular lipid layer surrounded by protein layers
(c) A protein layer between two lipid layers
(d) A lipid layer between two protein layers
Answer: (b)
