TLS Online TPP Program

#Question id: 2120


Which one of the following statements about membranes is true?

#SCPH06 I Botany
  1. Most plasma membranes contain more than 70% proteins.

  2. Sterol lipids are common in bacterial plasma membranes.

  3. Sterol lipids are common in human cell plasma membranes.

  4. The plasma membranes of all cell types within a particular organism have basically the same lipid and protein composition.

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TLS Online TPP Program

#Question id: 10564

#SCPH05 I Biotechnology

The term Ys , called the solute potential or the osmotic potential, represents the effect of dissolved solutes on water potential,

a) The mixing of solutes and water reduces the disorder of the system and thereby lowers free energy

b) Solutes reduce the free energy of water by diluting the water

c) The mixing of solutes and water increases the disorder of the system and thereby lowers free energy

d) Solutes increases the free energy of water by diluting the water

 Which one of the following statements are INCORRECT?

TLS Online TPP Program

#Question id: 10564

#SCPH06 I Botany

The term Ys , called the solute potential or the osmotic potential, represents the effect of dissolved solutes on water potential,

a) The mixing of solutes and water reduces the disorder of the system and thereby lowers free energy

b) Solutes reduce the free energy of water by diluting the water

c) The mixing of solutes and water increases the disorder of the system and thereby lowers free energy

d) Solutes increases the free energy of water by diluting the water

 Which one of the following statements are INCORRECT?

TLS Online TPP Program

#Question id: 10565

#I Life Science/ Life Sciences Group – I-V

The term Yp is the hydrostatic pressure of the solution

TLS Online TPP Program

#Question id: 10565

#SCPH05 I Biotechnology

The term Yp is the hydrostatic pressure of the solution

TLS Online TPP Program

#Question id: 10565

#SCPH06 I Botany

The term Yp is the hydrostatic pressure of the solution

TLS Online TPP Program

#Question id: 10566

#I Life Science/ Life Sciences Group – I-V

What happens if this cell is placed in the beaker containing 0.1 M sucrose, Because the water potential of the sucrose solution (Yw = –0.244) is greater than the water potential of the cell (Yw = –0.732 MPa)

a) Water will move from the cell to the sucrose solution

b) From high to low water potential

c) From low to high water potential

d) Water will move from the sucrose solution to the cell

Which of the following statement is CORRECT?