Use the dilution scheme shown below and answer the questions that follow: Part H

Question

Use the dilution scheme shown below and answer the questions that follow:

Part H - Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube I?

Part I - Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube II?

Part J - Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube III?

Part K - Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube IV?

Part L - Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube V?

Part M - Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube VI?

1 x 1010 cell/mL 1 x 102 cell/mL 1 x 104 cell/mL 1 x 108 cell/mL 1 x 109 cell/mL 1.0 mL 0.1 mL 0.1 mL 0.1 mL 1.0 mL 1.0 mL Original Sample9.0mL 0.9 mL 100 9.9 mL 9.9 mL IV 9.0 mL 9.0 ml VI 0.1 mL 0.1 mL 48 colonies 50 colonies

Explanation / Answer

Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube I?

B) 1 x 109 cell/mL

Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube II?

B) 1 x 108 cell/mL

Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube III?

B) 1 x 106 cell/mL

Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube IV?

A) 1 x 104 cell/mL

Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube V?

A) 1 x 103 cell/mL

Suppose that the original sample had a concentration of 1.0 x 1010 cells/mL. Based on the latter concentration, what will be the concentration of cells in tube VI?

C) 1 x 102 cell/mL

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