metabolism in seed germination

What is the main role of proteolytic enzymes in the metabolism of germinating seeds?

• Synthesizing vitamins

• Producing lipids

• Breaking down carbohydrates

• Using stored protein

Where are most hydrolysis enzymes produced in cereal grains in response to germination signals?

• Embryo

• Endosperm

• Aleurone or scutellum

• Seed covering

What is the main storage food constituent in cereal grains?

• Protein

• Lipids

• Carbohydrates

• Vitamins

What is the main function of α-amylase during seed germination under drought stress?

• Prevention of osmotic potential decrease

• Induction of drought stress

• Promotion of solutes accumulation

• Inhibition of solutes accumulation

What is the main source of ROS (reactive oxygen species) during seed germination?

• Mitochondria

• NADPH oxidases

• Peroxidases

• Glyoxysomes

What is the main function of H2O2 (hydrogen peroxide) as a signaling molecule during seed germination?

• Causing cellular damage

• Diffusing through membranes

• Interacting with biomolecules

• Producing oxidative stress

What is the main effect of H2O2 on polyunsaturated fatty acids (PUFAs) during seed germination?

• Lipid peroxidation

• Protein oxidation

• DNA oxidation

• Cellular damage

What is the main function of lipase during seed germination?

• Synthesizing sugars

• Producing energy

• Storing vitamins

• Regulating enzyme activities

What is the main role of GAs (gibberellic acids) in alleviating drought stress-caused inhibition of seed germination?

• Controlling α-amylase

• Regulating lipase activity

• Activating kinase cascades

• Stimulating ROS production

What is the main function of 13S globulin degradation during seed germination?

• Supporting protein synthesis

• Producing lipids

• Stimulating ROS production

• Activating kinase cascades