Water
A water molecule is made up of two hydrogen atoms and this.
One oxygen atom.
The temperature at which a solid changes to a liquid.
Melting Point
Acids have this characteristic taste.
Sour
DNA forms in this shape.
Double Helix
A peptide is a combination of these kinds of acids.
Amino acids.
When water freezes, liquid water turns to solid ice mainly because the molecules do this.
Slow down enough that their attraction keeps them in a fixed position.
The conversion of a liquid to a gas below the boiling point.
Evaporation
Bases have this characteristic taste.
Bitter
James Watson and this man first reported the discovery of DNA
Francis Crick
A polypeptide contains morethan ten amino acids, but this type of polymer contains more than 100.
Protein
Different liquids have different freezing points mainly because
Molecules of different liquids have a different amount of attraction.
The conversion of a gas to a liquid.
Condensation
This type of solution has a pH number of 7.
Neutral
DNA tells the cell how to build these. (There are 20 main types in the body)
Proteins
The function of a protein is determined primarily by this.
It's spacial conformation, or shape.
The boiling point of water in Celsius.
100 degrees.
The conversion of a solid to a gas.
Sublimation
This type of substance can release a proton.
Acid
DNA uses this many main building blocks, each represented by a letter.
Four
This is the source of all energy for life on earth.
The sun.
The water molecule is bent at this angle.
104.5°
The conversion of a liquid to a solid.
Freezing
This type of substance accepts a proton.
Base.
I strand of DNA can form a polymer that is this long.
6 feet.
The process by which organisms capture solar energy.
Photosythesis.