A species of bactceria found at the bottom of a shallow pond has a hard cell wall and a semi-permeable membrane. Which of the following statements is true?
a) The cell wall prevents the cell from being crushed by external forces
b) The cell wall prevents the cell from exploding due to internal pressure
c) The internal and external pressures are equal, hence the cell wall determines shape.
d) None of the above.

Question

A species of bactceria found at the bottom of a shallow pond has a hard cell wall and a semi-permeable membrane. Which of the following statements is true?
a) The cell wall prevents the cell from being crushed by external forces  
b) The cell wall prevents the cell from exploding due to internal pressure  
c) The internal and external pressures are equal, hence the cell wall determines shape.  
d) None of the above.

anonymous · Answer

a) The cell wall prevents the cell from being crushed by external forces

anonymous · Answer

structure of amino acid