2) Large molecules that is taking in by the cell cannot be used by the cell yet

2) Large molecules that is taking in by the cell cannot be used by the cell yet. What organelle inside the cell will be working to process and breakdown these large molecules? Explain your answer.

3. A macrophage is a type of white blood cell which belongs to the innate immunity. They attack

foreign bodies or harmful substance that enters in the body. Describe how a macrophage engulf a bacterium

4. What type of endocytosis do the plant root cells use ingest substance? Describe the process.

5. Cholesterol is transported in the blood by a complex lipid and proteins called the low-density

lipoprotein (LDL). The body cells take up LDL when LDL receptors bind in a coated pit. What type

of endocytosis is discussed? Describe the process.

FYI: If the LDL receptor failed to bind with the coated pit, the cell will not able to take up the

cholesterol. Instead cholesterol will accumulate in the walls of the arterial blood vessels that may

lead to high blood pressure, occluded (blocked) arteries and heart attack.