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Class 11 NEET Biology Biological Classification Questions Part 1
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Question : 43
Total: 100
A bacterium divides every 35 minutes. If a culture containing
10
5
cells per ml is grown for 175 minutes, what will be the cell concentration per ml after 175 minutes?
(1998)
35
×
10
5
cells
32
×
10
5
cells
175
×
10
5
cells
85
×
10
5
cells
Validate
Solution:
(b) : A bacterium divides every 35 minutes.
In 175 minutes it would be
2
175
∕
35
times
=
2
5
times.
In 175 minutes 105 bacterium cells would be
=
2
5
×
10
5
=
32
×
10
5
∕
m
l
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