Biological molecules Flashcards
1
Q
What is a polymer?
A
long chains of monomer sub-units
2
Q
What is a polysaccharide?
A
long chains of monosaccharides
3
Q
What is a condensation reaction?
A
When two molecules join to form a larger molecule and release a water molecule
4
Q
What is a hydrolysis reaction?
A
the breaking down of large molecules into smaller ones by the addition of water
5
Q
Define metabolism
A
all the chemical processes that take place in living organisms
6
Q
Define molar solution
A
a solution that contains one mole of solute in each litre of solution
7
Q
Define mole
A
the molecular mass expressed in grams
8
Q
What is an ion?
A
when an atom loses or receives an electron
9
Q
What is an isotope?
A
chemical element that has the same number of protons and electrons but different number of neutrons
