LECTURE ONE

Question 1

1ST tier elements from the periodic table

Answer 1

Hydrogen, Carbon, Oxygen, Nitrogen

Question 2

Bond formation

Answer 2

C,H,N,O all favour bond formation, but carbon is central to this and the formation of complex molecules

Question 3

origins of life on earth

Answer 3

life requires water - condensation of water on earth. reducing atmosphere (supporting bond formation) and electrical discharges (providing energy)

Question 4

Miller- Urey Promoridial Soup experiment

Answer 4

made more than 20 different amino acids

Question 5

central role of carbon

Answer 5

carbon forms covalent bonds with carbons and other atoms. single, double, triple bonds

Question 6

macromolecules

Answer 6

molecules that make biological life unique are large and complex

Question 7

cellulose

Answer 7

a polymer of beta-d-glucose monomers, with a molecule of water split out in each joining reaction

Question 8

nucleic acid

Answer 8

nucleic acids DNA and RNA are polymers of nucleotides.

Question 9

polypeptides

Answer 9

protein chains or polypeptides are polymers assembled from 20 different amino acids

Question 10

monomers

Answer 10

saccharide (sugar), nucleotide, amino acid

Question 11

polymer

Answer 11

Polysaccharide (carbohydrate) Polynucleotide (nucleic acids) Polypeptide (protein)

Question 12

Bonds

Answer 12

Glycosidic / Phosphodiester/ Peptide