Which of the following was used as a negative control in the turnip and potassium chloride experiment?
A. The batch of turnip cells soaked in potassium chloride and kept at room temperature
B. The batch of turnip cells soaked in potassium chloride and kept at just above freezing
C. The batch of untreated turnip cells
D. The solution of potassium chloride
Answer:C
Which of the following was used as a negative control in the turnip and potassium chloride experiment?
A. The batch of turnip cells soaked in potassium chloride and kept at room temperature B. The batch of turnip cells soaked in potassium chloride and kept at just above freezing C. The batch of untreated turnip cells D. The solution of potassium chloride