Active/Bulk Transport

Question 1

Describe the function of ATP

Answer 1

• ATP is used for energy transfer in cells of all cells of living things, it is known as the universal energy currency.

Question 2

What two types of active transport are there?

Answer 2

• Bulk Transport
• Active Transport via transmembrane protein.

Question 3

What do both types of active transport use?

Answer 3

• They both use energy in the form of ATP.

Question 4

ACTIVE TRANSPORT VIA MEMBRANE -BOUND CARRIER PROTEIN

Answer 4

• The molecules or ions to be transported binds to the receptors in the channel of the carrier protein on the outside of the cell.
• On the inside the cell ATP binds to the carrier proteins and is hydrolysed into ADP and the cell.
• Binding of the phosphate molecules to the carrier proteins causing the proteins to change shape- opening up the inside of the cell.
• The molecule or ions is released to the inside of the cell.
• The molecule or ion is released to the inside of the cell.
• The phosphate molecules is released to the carrier protein and recommended to form ATP.
• The carrier proteins returns to its original shape.

Question 5

What is Bulk Transport?

Answer 5

• It is a type of active transport because it uses energy from ATP
• It moves moves molecules that are large molecules (e.g. whole organisms like pathogens)