Module 2: Chemistry of Life Flashcards
Define Matter
Has mass and occupies space
Define Element
Pure substance cannot be broken down
Define Compound
Combination of 2 or more substances
What charge to Protons carry?
Positive
What charge to Neutrons carry?
Neutral
What charge to Electrons carry?
Negative
What are some unique characteristics of water?
Solvent, lubricant, changes temp slowly
What are the body’s many energy source?
Carbohydrates
What is Glycogen and where is it stored?
It is the stored form of Glucose- stored in the liver
What are some characteristics of Lipids?
Cushion organs, insulate nerves, provide structure to cells, reserve energy supply, serve as vitamins
What do Nucleotides consist of?
a sugar, a phosphate group, and a nitrogen base.
What are lipids composed of?
Carbon, hydrogen and oxygen
What are proteins?
Large molecules consisting of smaller chemical subunits called amino acids.
What are nucleic acids?
DNA & RNA consisting of nucleotides.`
What is the pH of a base
> 7
What is the pH of an acid
<7
What is an ionic bond?
Formed when one atom transfers an electron from its outer shell to another atom.
What is an electrolyte?
Compound that ionize in water and create a solution capable of conducting energy.
What is a covalent bond?
When two atoms share one or more pairs of electrons
What is catabolism?
Breaking down complex compounds such as large food into simpler compounds.
What is metabolism?
The sum of all chemical reactions in the body
What is anabolism?
Building complex chemical molecules such as lipids and proteins from smaller subunits.