Exploring Transport Mechanisms in Cells

The video tutorial explores how cells transport substances through diffusion, osmosis, and active transport. It explains diffusion as the movement of particles from high to low concentration, with examples like gas exchange in lungs. Osmosis, a similar process for water, is described with its effects on cells. The video concludes with a preview of active transport, to be covered in the next part.

What is the movement of substances from a region of higher concentration to a region of lower concentration called?

• Filtration

• Diffusion

• Active transport

• Osmosis

Which of the following is NOT required for diffusion to occur?

• Energy from ATP

• A concentration gradient

• A partially permeable membrane

• A gas or dissolved substance

What role do carrier proteins play in cell transport?

• They facilitate diffusion of specific substances

• They produce energy for transport processes

• They assist in osmosis by moving water molecules

• They help in the active transport of substances

What can cause animal cells to burst?

• Active transport

• Too much water entering the cell

• Lack of water

• Facilitated diffusion

Which process is used by the roots of plants to absorb water?

• Active transport

• Endocytosis

• Diffusion

• Osmosis