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A&P Week 2: Chemistry of Life
Question | Answer |
---|---|
The most abundant element essential to life is | carbon |
What term is used to describe all of the chemical reactions that occur in body cells? | metabolism |
A force holding two atoms together is a(n) | chemical bond |
A chemical bond formed by the sharing of one or more pairs of electrons between the outer shells of two atoms is called a(n) ___ bond. | covalent |
Which subatomic particles carry a charge? | protons and electrons |
The reaction between hydrogen and oxygen needed to form water is an example of a | synthesis reaction |
As the concentration of hydrogen ions increases, the pH goes ____, and the solution becomes more ____. | down; acidic |
Hydrolysis _____ a water molecule. | breaks down compounds by adding |
The water molecule has two distinct ends, each with a partial electrical charge. Because of this structure, water is said to be | polar |
As a result of which reaction during catabolism is a water molecule added to break a larger compound into smaller subunits? | hydrolysis |
Hydrogen bonds result from unequal charge distribution on a molecule. Such molecules are said to be | polar |