Week 1 Biological Chemistry

Question 1

Define Atom?

The s- p- of a c- e- that can exist

Answer 1

smallest
particle
chemical
element

Question 2

Define Molecule?

Group of atoms b- together, r- the smallest f- unit of a chemical c- that can take part in a c- reaction

Answer 2

bonded 
representing
fundamental 
compound 
chemical

Question 3

What are the types of molecular bonds?

C- Bonds & I- Bonds

Answer 3

Covalent

Ionic

Question 4

Principal of Covalent Bonds?

S- bond formed by the s- of e-

Answer 4

Strong
sharing
electrons

Question 5

Principal of Ionic Bonds?

W- bond f- by the t- of electrons

Answer 5

Weak
formed
transfer

Question 6

What is the composition of carbohydrates?

Monosaccharides - Sugar (g-)
Disaccharides - s-
Polysaccharides - cellulose
Energy, s- and s-

Answer 6

glucose
sucrose
storage
structural

Question 7

What is the composition of lipids?

2 parts: glycerol and fatty a-
Membrane lipids - p-
Complex lipids - steroids, cholesterol

Answer 7

acids

phospholipids

Question 8

What is the composition of proteins?

Answer 8

Basic building blocks are amino acids (AA)
AAs differ with respect to the ‘side chain’ (R group)
AA join to form polypeptide chain
Peptide bonds

Question 9

What is the composition of nucleic acids?

Basic building blocks are n-
Polynucleotide
Phosphodiester linkages

Answer 9

nucleotides

Question 10

What are the particles that make up an atom?

P-
E-
N-

Answer 10

Protons
Electrons
Neutrons

Question 11

What are hydrogen bonds?

Answer 11

a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other