Question

Which is true about the relative and absolute growth of these two leaves?

• A. Absolute growth of leaf A is higher than leaf B
  Relative growth of both leaves are the same
• B. Absolute growth of both leaves are the same
  Relative growth of leaf A is higher than leaf B
• C. Absolute growth of both leaves are the same
  Relative growth of leaf B is higher than leaf A
• D. Absolute growth of leaf B is higher than leaf A
  Relative growth of both leaves are the same

Answer 1

The correct option is B Absolute growth of both leaves are the same

Relative growth of leaf A is higher than leaf B
Absolute growth rate is the total growth per unit time. Here, absolute growth rate for both leaves is 5 square centimeters per given time.
Relative growth is the rate of growth with respect to the initial size. Here, relative growth rate for leaf A is higher as its surface area increased by 100% while surface area of leaf B increased by only 10%.