Question

I.

Answer 1

Add a metabolic poison to the water to block any active metabolism and see if the seed germinates the same as without the poison.

• The percent increase in mass decreases with rising temperature. As temperature rises, its value approaches that of the percent increase in mass.
• There are two types of requirements for microbial growth: physical and chemical. Osmotic pressure, pH, and temperature are examples of physical factors.
• Water, supplies of carbon and nitrogen, minerals, oxygen, and organic growth stimulants are all chemical necessities.
• hence by using poison to block the active metabolism of seed the chemical growth will be restricted. If the seed still swells this means that it is a physical process.
• If the seed swelling stops then the process is considered chemical.

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