For bacterial growth in a cell culture, growth law is very similar to the law of radioactive decay. Which of the following graphs is most suitable to represent bacterial colony growth?

(Graphs show

Question

For bacterial growth in a cell culture, growth law is very similar to the law of radioactive decay. Which of the following graphs is most suitable to represent bacterial colony growth?

(Graphs show  vs time with four different curve shapes)

Canvas Classes · Accepted Answer

Bacterial growth law:

This is analogous to radioactive decay  but with a positive exponent (growth, not decay).

This increases exponentially with time — the graph shows a concave-upward curve starting at 1 and rising steeply.

Answer: (d) Exponential growth curve

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