Cell Chemistry

Question 1

Function of enzymes

Answer 1

Enzymes accelerate, or catalyse chemical reactions

Question 2

What is an enzyme

Answer 2

Enzymes are complex protein molecules which act as biological catalysts.

Question 3

Balanced chemical equation photosynthesis

Answer 3

6CO2 + 6H2O –( sunlight , chlorophyl ) –> C6H12O6 + 6O2

Question 4

Balanced chemical equation aerobic respiration

Answer 4

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

Question 5

All living things get their energy through a reaction called

Answer 5

Respiration

Question 6

When there is no oxygen or limited oxygen,the respiration process is

Answer 6

Anaerobic

Question 7

What is aerobic respiration ?

Answer 7

It is the most common form of respiration and requires oxygen. It produces energy, carbon dioxide and water vapour

Question 8

Define catalyst

Answer 8

A catalyst is something that speeds up a chemical reaction without itself being used up in the reaction

Question 9

Define anaerobic

Answer 9

Anaerobic respiration requires no oxygen and occurs in some yeasts and bacteria.

Question 10

Fermentation

Answer 10

Anaerobic respiration in yeast, also known as alcoholic fermentation, enzymes in yeast convert glucose to ethanol