Multiple choice

Match the entries in group I (diameter of cocci) with that in group II (surface / vol. ratio) and select the correct answer.

 
Group I
Group II
P. 1 μm 1. 6 µm-1
Q. 2 μm 2. 3 µm-1
R. 3 μm 3. 2 µm-1

  1. P - 3, Q - 1, R - 2

  2. P - 1, Q - 2, R - 3

  3. P - 3, Q - 1, R - 2

  4. P - 3, Q - 2, R - 1

  5. P - 2, Q - 3, R - 1
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

If a bacterium belonging to cocci group has a diameter of 1 µm, the numerical value of the ratio of its surface area to volume will be 6 µm−1. If a bacterium belonging to cocci group has a diameter of 2 µm, the numerical value of the ratio of its surface area to volume will be 3 µm−1. If a bacterium belonging to cocci group has a diameter of 3 µm, the numerical value of the ratio of its surface area to volume will be 2 µm−1.

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