Question

Pea seed absorbs more water as compared to paddy and swell up because

• A. Proteins in pea absorb water.
• B. Hard coat of paddy prevents water absorption.
• C. Wall of paddy is impermeable to water.
• D. Osmotic potential of pea seeds is more than that of paddy.

Answer 1

Answer: (A)

Proteins in pea absorb water.

Pea seeds need more water in comparison to paddy seeds. However, the paddy or rice is high in carbohydrate whereas pea seeds contain protein. So, when the pea seeds are put in water, they imbibe water and swell up and the enzymes and the food reserves get hydrated and become active. This causes the seed to increase its metabolic activities and produce energy which is needed for the growth of the plant. So, the correct answer is option A.