When it is important to count the number of cells, determine cell size and differentiate between dead and live cells a ___ is used.
A)Coulter counter
B)flow cytometer
C)SEM
D)methylene dye indicator
E)plate count

Question

Quizplus · Accepted Answer

Flow cytometer is the best choice for counting the number of cells, determining cell size, and differentiating between dead and live cells. It uses laser technology and can analyze cells in real-time. Coulter counter can also be used for cell counting, but it does not differentiate between dead and live cells. SEM is a microscopy technique used for imaging cells but cannot count cells. Methylene dye indicator is used to stain cells for visualization but cannot count cells. Plate count is a bacterial culture technique used to determine the number of viable cells in a sample.

When It Is Important to Count the Number of Cells