PEA stands for Phenylethyl Alcohol Agar medium. It is a selective solid medium that is used to culture Gram Positive bacteria. In this medium, phenylethyl alcohol is an active ingredient that inhibits the growth of Gram Negative bacteria. It causes leakage in the cell membrane of Gram Negative bacteria. It is also used for the growth of obligate anaerobic bacteria.
It is likely to cause oxygen because when heat is applied to boiling water, it creates a gas, which is oxygen.
A food chain shows the feeding relationship between different organisms in a particular environment and/or habitat. Plants are at the bottom of a food chain because they are producers that make their food from a process called photosynthesis . Organisms that can make their own food are called producers.
Ionic and Covalent bonds
Ionic bonds : Is a chemical bond between a metal and a non-metal and an electron Transfer takes place.
Covalent bonds: A chemical bond between two non-metals and an electron
Sharing takes place.
A reactant is a substance that is present (and is modified) in a chemical reaction. Moreover, endergonic reactions are chemical reactions that consume energy.
- The fate of the phosphate group that is removed when ATP is converted to ADP is that it is acquired by a reactant in an endergonic reaction.
- ATP synthesis is an endergonic reaction in which ADP and phosphate (Pi) are reactants.
- ATP is a product that is at a higher energy level than ADP and phosphate (i.e., the reactants), thereby this reaction consumes energy.
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