2.3: ATP and inorganic ions

Question 1

ATP

Answer 1

Immediate source of energy in a cell

Question 2

In respiration energy released from glucose

Answer 2

is used to make ATP

Question 3

ATP

stand for

Answer 3

Adenosine triphosphate

Question 4

ATP made from

Answer 4

nucleotide base adenine
ribose sugar
3 phosphate groups

Question 5

ATP known as a

Answer 5

nucleotide derivative

Question 6

nucleotide derivative

Answer 6

modified form of a nucleotide

Question 7

ATP … after its made

Answer 7

diffuses to the part of the cell that needs energy

Question 8

Energy in ATP stored

Answer 8

in high energy bonds between phosphate groups

Question 9

Energy released by ATP

Answer 9

hydrolysis reaction

Question 10

ADP

Answer 10

adenosine diphosphate

Question 11

ATP broken down into

Answer 11

ADP and Pi

Question 12

Pi

Answer 12

inorganic phosphate

Question 13

ATP hydrolyse

Answer 13

Catalyses hydrolysis reaction of ATP into ADP, breaking a phosphate bond and releasing its energy

Question 14

Coupled reaction

Answer 14

ATP hydrolysis coupled to other energy requiring reaction so energy can be used directly and not lost as heat energy

Question 15

Phosphorylation

Answer 15

Addition of an inorganic phosphate to a compound making the compound more reactive

Question 16

ATP synthase

Answer 16

Catalyses condensation reaction of ADP and Pi to re-synthesise ATP occurs during photosynthesis and respiration

Question 17

Inorganic ions have an

Answer 17

electric charge

Question 18

Ion with a + charge

Answer 18

cation

Question 19

Ion with a - charge

Answer 19

anion

Question 20

Inorganic ion

Answer 20

An ion that doesn’t contain carbon

a few exceptions

Question 21

Inorganic ion’s role

Answer 21

depends on its properties

determines whether its found in high or low concs.

Question 22

Inorganic ions found in

Answer 22

solution, the cytoplasm of cells, body fluid of organisms

Question 23

Haemoglobin

Answer 23

Large protein that carries oxygen around the body, in red blood cells

Question 24

Whats haemoglobin made up of

Answer 24

4 different polypeptide chains, each with an iron ion in the centre

Question 25

Which element in haemoglobin binds to the Oxygen

Answer 25

iron ion (Fe2+)

Question 26

What happens when Fe2+ binds to oxygen in haemoglobin

Answer 26

it temporarily becomes Fe3+

Question 27

pH, low pH

Answer 27

more conc H+
more acidic
lower pH