Plant Growth and Development Question 82

82. Which one increases in the absence of light?

(a) Uptake of minerals

(b) Uptake of water

(c) Elongation of internodes

(d) Ascent of sap

Show Answer

Answer : c

Hints & Solutions

(c) In the absence of light stem becomes excessive long due to ’etiolation’. This causes cells of internodes to get enlarged.