First slide

Plant Growth Regulators

Question

An enzyme that can stimulate germination of barley seeds is

Easy

A

lipase.
B

protease.
C

invertase.
D

$α$ -amylase.

Solution

Gibberellins has a role in mobilization of reserves during seed germination. Cereal grains such as rye, barley, and wheat have a protein-rich layer of cells called the aleurone which surrounds the starchy endosperm tissue. During germination, cells in the aluerone secrete a range of hydrolytic enzymes, including α-amylase and proteases, which are involved in the hydrolysis of carbohydrate and protein stored in the endosperm.

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