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Question: Answered & Verified by Expert
Arithmetic growth rate can be mathematically expressed as:
BiologyPlant - Growth and DevelopmentNEET
Options:
  • A Lt = L0 - rt
  • B L0 = Lt + rt
  • C rt = L+ L0
  • D Lt = L0 + rt
Solution:
2883 Upvotes Verified Answer
The correct answer is: Lt = L0 + rt
In arithmetic growth, following mitotic cell division, only one daughter cell continues to divide while the other differentiates and matures. The simplest expression of arithmetic growth is exemplified by a root elongating at a constant rate.
Mathematically, it is expressed as:
Lt = L0 + rt
Lt = length at time ‘t’
L0 = length at time ‘zero’
r = growth rate / elongation per unit time.

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