Lecture 1: 'Aliens like us?'

Question 1

What is the first step in the ‘big bang?’

Answer 1

Primordial universe. Hydrogen and helium condense into stars.

Question 2

What is the second step in the ‘big bang’?

Answer 2

Stars fuse into the heavier elements, e.g. C, N and O2.

Question 3

What is the third step in the ‘big bang’?

Answer 3

Large unstable stars explode in supernovas dispersing the elements.

Question 4

What is the fourth step in the big bang?

Answer 4

Second gen stars form solar systems incorporating the heavier elements.

Question 5

What does the first tier represent in the periodic table?

Answer 5

The elements that are most abundant: H, C, N, O

Question 6

What are the four origins of life on Earth? (e.g. what is required)

Answer 6

Water, simple (gaseous) molecules, reducing atmosphere, electrical discharge

Question 7

Biology is…

Answer 7

modular

Question 8

What are macromolecules?

Answer 8

Polymers.

Question 9

What are the four classes of macromolecules?

Answer 9

Lipids, carbohydrates, proteins and polynucleotide

Question 10

What is a residue?

Answer 10

Another name for a monomer.

Question 11

Monomer: saccharide (Sugar)
Polymer: ?
Bond: ?

Answer 11

Monomer: saccharide (sugar)
Polymer: Polysaccharide
Bond: Glycosidic

Question 12

Monomer:
Polymer:
Bond: Phosphodiester

Answer 12

Monomer: Nucleotide
Polymer: Polynucleotide
Bond: Phosphodiester

Question 13

Monomer:
Polymer: Polypeptide (Protein)
Bond:

Answer 13

Monomer: Amino acid
Polymer: Polypeptide
Bond: Peptide

Question 14

All biopolymers link together through…

Answer 14

condensation