1. ATP

Question 1

Structure of ATP (in comparison to DNA & RNA)

Answer 1

Single nucleotide

Question 2

Is ATP energy itself?

Answer 2

NONONONONONO

Question 3

What 3 subunits are nucleotides made from?

Answer 3

Phosphate group
Pentose sugar
Organic nitrogenous base

Question 4

Phosphate group of ATP

Answer 4

A chain of 3 phosphate groups with high-energy covalent bonds.
These bonds are easily broken, but when the break (in a hydrolysis reaction) they release lots of energy.

Question 5

What pentose sugar is in ATP?

Answer 5

Ribose

Question 6

ATP + water

Answer 6

ADP (adenosine diphosphate) + P(subscript i) + energy

Question 7

What is P subscript i?

Answer 7

Inorganic phosphate ion

Question 8

What’s special about the ATP + water reaction?

Answer 8

It’s reversible!!

Condensation & hydrolysis

Question 9

ATP is made in…

Answer 9

respiration

Question 10

Features of ATP

Answer 10

• it’s an “energy currency”
• easily transported around a cell
• can release energy quickly in small amounts
• can’t be stored

Question 11

What enzyme catalyses the hydrolysis of ATP?

Answer 11

ATP hydrolase

Question 12

Is ATP considered relatively simple or complex?

Answer 12

Simple

Question 13

What can the inorganic phosphate ion be used for?

Answer 13

Phosphorylation

This makes compounds more reactive

Question 14

What enzyme catalyses the condensation of ADP?

Answer 14

ATP synthase