Question

Read the following statements regarding arithmetic growth and select the correct answer.
(i) Rate of growth is constant.
(ii) One daughter cell remains meristematic while the other one differentiates and matures.
(iii) Mathematical expression is $L_t=L_0+rt$.

• A. Statements (i) and (ii) are correct.
• B. Statements (ii) and (iii) are correct.
• C. Statements (i) and (ii) are correct
• D. All statements are correct.

Answer 1

The correct option is D All statements are correct.

Increase in growth per unit time is called as growth rate. The growth rate may be arithmetic or geometrical. Arithmetic Growth is a type of growth in which the rate of growth is constant and increase in growth occurs in arithmetic progression-- 2, 4, 6, 8, 10,12. Meristematic cells at the growing point divide in such a fashion that one daughter cell remains meristematic while the other grows and differentiates. the process continues. Mathematically, arithmetic growth is expressed as
$L_t=L_0+rt;$
where $L_t=$ length after time t, $L_0$ = length at the beginning, and r = growth rate. On plotting growth against time, a linear graph is obtained.

So, the correct answer is 'All statements are correct.'