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Biology OCR (3, biological molecules) > ATP > Flashcards

Flashcards in ATP Deck (28)
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1

What does ATP stand for?

Adenosine triphosphate

2

Draw the simplified structure of ATP

3

Draw the structure of a phosphate group

d

4

Draw the structure of a ribose

5

Draw the structure of adenine

6

Draw the complex structure of ATP

7

What are the three types of processes that the cell requires energy for?

  • Synthesis
  • Transport
  • Movement

8

What is another name for an ATP monomer?

A nucleotide

9

What is the name of the base on the ATP molecule?

Adenine

10

What is the sugar in ATP?

Ribose (so is an RNA nucleotide)

11

Why is ATP known as the universal energy currency?

ATP is used for energy transfer in all cells of living things

12

What is needed to break bonds?

Energy

13

What is released when bonds are formed?

Energy

14

Why do the phosphate groups require very little energy to break?

All the phosphate groups are negatively charged and so repel each other. This means they require little energy to separate

15

Overall, more energy is released than used when a phosphate ion is broken of the ATP molecule and used in another reaction. How much energy is released?

Approximately 30.6KJmol-1

16

What molecule is required to break the bonds between the phosphate ions?

A water molecule

17

What is the name of this type of reactions?

ATP + H2O → ADP + Pi + energy

hydrolysis

18

Draw the symbol equation for the hydrolysis reaction of one of the phosphates on the ATP molecule

ATP + H2O → ADP + Pi + energy

19

What does Pi stand for?

inorganic phosphate

20

What does ADP stand for?

Adenosine diphosphate

21

Why is ATP not a good long term energy store?

Instability of the phosphate bonds Water soluble

22

What two molecules are good energy stores?

Fats and carbohydrates

23

How is ATP obtained from fats and carbohydrates?

Through cellular respiration

24

describe the process of cellular respiration

A phosphate group is reattached to an ADP molecule

25

What is the name of the process that happens in cellular respiration

phosphorylation

26

What kind of reaction is phosphorylation?

condensation

27

ATP is not a good long-term energy store. However, it is said to be a good....

immediate energy store

28

What are the 5 properties of ATP?

  1. Small
  2. Water soluble
  3. Contains bonds with phosphates with intermediate energies
  4. Releases energy in small quantities
  5. Easily regenerated