PLANT PHYSIOLOGY
PLANT GROWTH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Because it has lag, log and stationary phase
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Because one daughter cell remains meristematic while the other daughter cell differentiates and matures
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Because of the effect of environment on mitosis
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None
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Detailed explanation-1: -In this growth, the rate of growth is constant. It is found in the root or shoots elongating at a constant rate. Linear curve is obtained in arithmetic growth, because one daughter cell remains meristematic while the other daughter cell differentiates and matures.
Detailed explanation-2: -Arithmetic growth occurs when one of the daughter cells continues to divide while the other matures. The continual elongation of roots is an example of arithmetic growth. Geometric growth is characterised by gradual expansion in the early phases and fast expansion in the latter stages.
Detailed explanation-3: -Mathematically arithmetic growth is expressed as Lt=L0+rt In this equation ‘r’ represents. No worries!
Detailed explanation-4: -This form of growth wherein new cells are always being added to the plant body by the activity of the meristem is called the open form of growth.
Detailed explanation-5: -(i) Rate of growth is constant. (ii) One daughter cell remains meristematic while the other one differentiates and matures. (iii) Mathematical expression is Lt=L0+rt.