Describe The Processes That Transport Substances Across The Plasma Membrane

Question 1

Give three passive cell mechanisms?

Answer 1

• Diffusion.
• Osmosis
• Filtration.

Question 2

What does active cell mechanisms include?

Answer 2

• Active Transport
• Endocytosis
• Exocytosis

Question 3

What is Active transport?

Answer 3

The movement of particles through membranes from regions of lower concentration to regions of higher concentration.

Question 4

What is Endocytosis?

Answer 4

• it is a process where a substance is brought into the cell.
• the material to be brought in is surrounded by an area of plasma membrane.
• This buds off inside the cell to form a vesicle containing the ingested material.

Question 5

What is Exocytosis?

Answer 5

• Opposite to Endocytosis.

- A vesicle is secreted from the cell.