CB8 Exchange and Transport in Animals

What is this a definition of?

The movement of particles from a high concentration to a low concentration

• Osmosis

• Diffusion

• Active transport

What is this a definition of?

The movement of particles from a high concentration to a low concentration through a partially permeable membrane

• Osmosis

• Diffusion

• Active transport

What is this a definition of?

The movement of particles from a low concentration to a high concentration using transport proteins

• Osmosis

• Diffusion

• Active transport

How do you calculate percentage change in mass?

• Distance/ time

• speed x time

• Change in mass/ starting mass x100

• Change in mass/ end mass x100

What does the word excrete mean?

• To remove

• To add

• To stimulate

• To inhibit

What is excreted from the body?

• Glucose

• Urea

• Carbon dioxide

• Oxygen

What process produces waste in the body

• Cells

• Thyroxine

• Metabolism

• Faeces

Which of the following are excretory organs?

• Lungs

• Heart

• Colon

• Kidneys

What could you do to a surface to make diffusion happen more quickly?

• Thick- Shorter distance to move

• Thin- Shorter distance to move

• Small surface area- More space for particles to move across

• Large surface area- More space for particles to move across

Why can't we get nutrients into our bodies by diffusion?

• We have transport systems

• We have lungs

• We are too small

• We are too large