Metabolism Reactions

Question 1

Describe the reaction of the conversion of glucose to starch and glycerol to cellulose

Answer 1

• glucose is joined together to make glycogen in animals and starch/cellulose in plants

Question 2

What is the purpose and the tissues and organs involved in the conversion of glucose to starch and glycerol to cellulose?

Answer 2

• glycogen and starch are insoluble and therefore good storage molecules
• muscular and liver tissues in animals and leaf and roots in plants

Question 3

Describe the process in making lipids

Answer 3

• 3 fatty acids and glycerol and joined to make new lipids

Question 4

What is the purpose of making lipids?

Answer 4

• to make fats for storage

Question 5

Describe the process in making proteins

Answer 5

Amino acids are joined together to make new proteins

Question 6

What is the purpose in making proteins and what are the tissue/organs involved?

Answer 6

• Growth or Repair
• muscles/ white blood cells

Question 7

Describe the process of respiration

Answer 7

Glucose is OXIDISED to carbon dioxide and water

Question 8

What is the purpose of respiration?

Answer 8

Release energy so all the other enzyme controlled reactions can take place

Question 9

Describe the process in the breakdown of excess amino acids (proteins)

Answer 9

Excess amino acids are broken down into urea

Question 10

What is the purpose and tissues and organs involved in the break down of excess amino acids?

Answer 10

• liver breaks down the amino acids, the kidneys to remove the urea