Characteristics of Plant Growth

Q.

What is the difference between primary and secondary growth?

Q. Match the following parameters of measurements of growth with their examples: $\begin{array}{cc}\text{i. Growth of pollen tube}& \text{1. Weight}\\ \text{ii. Growth of a leaf}& \text{2. Cell number}\\ \text{iii. Growth of a bacterial colony}& \text{3.Length}\\ \text{iv. Growth of a fruit}& \text{4.Surface area}\end{array}$

1. i-2, ii-3, iii-4, iv-1
2. i-4, ii-1, iii-3, iv-2
3. i-3, ii-4, iii-2, iv-1
4. i-2, ii-1, iii-4, iv-3