Q. Mycoplasmas, the smallest cells, are only (i) μm in length while bacteria could be (ii) μm. Among multicellular organisms, human red blood cells are about (iii) μm in diameter. Identify (i), (ii), and (iii)
(i) (ii) (iii)
A 0.5 5-7 7
B 0.3 3-7 9
C 0.3 3-5 4
D 0.3 3-5 7

 2327  215 NTA AbhyasNTA Abhyas 2020Cell : The Unit of Life Report Error

Solution:

Mycoplasmas, the smallest cells, are only 0.3 μm in length while bacteria could be 3 to 5 μm. Among multicellular organisms, human red blood cells are about 7.0 μm in diameter.