What are the units of the mole?
what is a solvent?
The liquid that a solute is dissolved into to make a solution
Individual biological molecules that can be linked to form chains are called...
Which type of reaction take place every time a monomer undergoes polymerisation?
a condensation reaction
How many atoms of carbon-12 are found in 1 mole of carbon-12?
6.022 x 1023
Which polymer do many mononucleotides form?
Define a 'molar solution' (1 M)
A molar solution (1 M) is a solution that contains 1 mole of solute in every litre (dm3) of solution.
How else can 1 mol dm-3 be written?
1 mole per litre
Name the common biological monomers
mononucleotides (or just nucleotides)
Describe a hydrogen bond
When the positive charge of one polar molecule is attracted to the negative charge of another polar molecule.
How can we find the mass of 1 mole of a more complex molecule?
Look up the atomic masses of each element that make up the molecule and add them together.
The process of polymer formation from monomers is called...
a hydrolysis reaction requires...
the addition of water to separate a polymer into its monomers.
What is meant by metabolism?
All of the chemical reactions that are taking place in the human body
What is a solute?
The solid that is dissolved to make a solution
Name 3 common biological polymers
What is 6.022 x 1023 referred to as?
The number of something in 1 mole
Describe a covalent bond
When atoms share a pair of electrons in their outer shell.
Which polymer do many monosaccharides form?
a condensation reaction releases...
a water molecule when monomers join
How else can 1 mole per litre be written?
1 mole dm-3
1 litre = _____ dm3
1 litre = 1 dm3
How many of something are there in 1 mole?
6.022 × 1023
Name the 3 types of bond that join biological molecules together
Long chains of monomer sub units are called...
Moles are used when talking about large numbers of substances such as...
What is a molecule?
When two or more atoms are chemically bonded together.
What is the mass of 1 mole of carbon?
Describe an ionic bond
When oppositely charge ions are attracted to one another e.g. Na+ and Cl-
What is an atom?
The smallest particle of a chemical element that can exist
How can we easily find the mass of 1 mole of an element?
Look up the atomic mass of the element on a periodic table.
Which polymer do many amino acids form?
Which type of reaction take place every time a polymer is broken down into monomers?
name the molecule
unsaturated fatty acid
Name a biological molecule that contains nitrogen
define a monomer
smaller/repeating unit/molecule from which a larger molecule is made (polymer)
What monomers make up lactose?
galactose and glucose
name the bond between 2 monosaccarides
name the bond between fatty acids and glycerol