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Biochemistry Grud

Biochemistry Notes Grudzinski

QuestionAnswer
living things are composed of a variety of... chemical compounds
Metabolic activities involve... chemical reactions
Chemical reactions can release energy to power life processes
What is the smallest unit of matter? atom
Atoms are composed of... subatomic particles
This subatomic particle has a positive (+) charge... proton
This subatomic particle has no charge and is neutral... neutron
This subatomic particle has a negative (-) charge... electron
What is the highest level of organization? organism
What do atoms make up? molecules
What do molecules or compounds make up? organelle
What do organelles make up? cell
What do cells make up? tissue
What do tissues make up? organs
What do organs make up? organ system
The atomic number is the number of... protons
The atomic number gives an atom its identity as a specific... element
What is made up of the number of protons and neutrons in the atom? atomic mass
What element is found the most in our body? oxygen
What element makes up 18% of our body? carbon
When an atom gives up or takes on electrons to become electrically charged this type of bond is formed... ionic chemical bond
A charged particle in an ionic bond is called an... ion
When atoms share electrons to bond together to make compounds they form this type of bond... covalent chemical bond
The potential of hydrogen stands for pH
The PH scale ranges from 0 to ... fourteen
Solutions with a pH less than are... acids
Acids have more of these ions (?) than hydroxyl ions... hydrogen
Solutions with a pH greater than 7 are called... bases
Bases have more of these ions (?) than hydrogen ions... hydroxyl
Gastric juice is an... acid
Laundry soap (detergent) is a ... base
Milk is... neutral
Pure water is... neutral
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