Biochemistry And The Organization Of Cells

Question 1

Functional group

Answer 1

An atom or group of atoms that show characteristic physical and chemical properties

Question 2

Living cells include very large molecules such as?

Answer 2

1. Proteins
2. Nucleic acids
3. Carbohydrates
4. Lipids

Question 3

Enzymes

Answer 3

Proteins that are biocatalysts

Question 4

Name the 3 domains

Answer 4

1. Bacteria
2. Archaea
3. Eukarya

Question 5

Difference between prokaryotes and eukaryotes

Answer 5

Prokaryotes
1. Single celled organisms
2. No true nucleus
Eukaryotes
1. Multicellular
2. Has true nucleus

Question 6

Miller-Urey experiment

Answer 6

Demonstrates that important bio molecules could have arisen under abiotic conditions

Question 7

When is a reaction exergonic and spontaneous

Answer 7

Delta G = -

Question 8

When is a system in equilibrium

Answer 8

Delta G = 0

Question 9

Define electronegativity

Answer 9

A measure of the force of an atom’s attraction for electrons it shares

Question 10

True or False. Hydrogen bonds are covalent

Answer 10

False

Question 11

True or False. Hydrogen bonds are weaker than ionic and covalent bonds but stronger than Van der Waals forces

Answer 11

True