Photosynthesis

Question 1

Chemical equation for photosynthesis

Answer 1

6CO2 + 6H2O + (energy) —-> C6H12O6 + 6O2

Question 2

Metabolic Pathway

Answer 2

A series of small reactions controlled by enzymes (eg respiration and photosynthesis)

Question 3

Phosphorylation

Answer 3

Adding phosphate to a molecule (eg ADP is phosphorylated to ATP)

Question 4

Photophosphorylation

Answer 4

Adding phosphate to a molecule using light

Question 5

Photolysis

Answer 5

The splitting (lysis) of a molecule using light (photo) energy

Question 6

Photoionisation

Answer 6

When light energy excites electrons in an atom or molecule, giving them more energy and causing them to be released. The release of electrons causes the atom or molecule to become a positively charged ion

Question 7

Hydrolysis

Answer 7

The splitting (lysis) of a molecule using water (hydro)

Question 8

Decarboxylation

Answer 8

The removal of carbon dioxide from a molecule

Question 9

Dehydrogenation

Answer 9

The removal of hydrogen from a molecule

Question 10

Redox Reactions

Answer 10

Reactions that involve oxidation (loss of electrons/hydrogen or gain of oxygen) and reduction (gain of electrons/hydrogen or loss of oxygen)

Question 11

Coenzyme

How do they work?

Answer 11

A molecule that aids the function of an enzyme

By transferring a chemical group from one molecule to another

Question 12

Name and describe the coenzyme used in photosynthesis

Answer 12

NADP
Transfers hydrogen from one molecule to another- this means it can reduce (give hydrogen to) or oxidise (take hydrogen away from) a molecule