Topic 3 Movement of Substances

The student sitting next to you just came from gym class and forgot to shower and you can tell. is this diffusion, osmosis or active transport?

• diffusion

• osmosis

• active transport

The picture is an example of...

• active tranport
• passive transport
• diffusion
• osmosis

You put raisins in a glass of water and they plump up. Is this diffusion, osmosis or active transport?

• diffusion

• osmosis

• active transport

Solutes move against the concentration gradient

• Passive Transport
• Active Transport

Which of the following is a sample of active transport?

• movement of oxygen from alveoli into red blood cell

• movement of water across cell membrane

• plant root absorbing mineral ions from the soil

• uptake of water by the root hair of the plant

The diagram shows an experiment using a potato. Which shows the result of the experiment after 24 hours?

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• 
• 
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Which one is the definition of Diffusion ?

• movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

• passage of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane

• net movement of molecule from a region of higher concentration to region of lower concentration. Molecule down a concentration gradient

• net movement of molecule from a region of lower concentration to region of higher concentration. Molecule down a concentration gradient

Which one is the definition of Osmosis ?

• movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

• passage of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane

• net movement of molecule from a region of higher concentration to region of lower concentration. Molecule down a concentration gradient

• net movement of molecule from a region of lower concentration to region of higher concentration. Molecule down a concentration gradient

Which one is the definition of active transport?

• movement of particles through the cell membrane from a region of lower concentration to a region of higher concentration using energy in the form of ATP.

• passage of water molecules from a region of their higher concentration to a region of their lower concentration through a partially permeable membrane

• net movement of molecule from a region of higher concentration to region of lower concentration. Molecule down a concentration gradient

• net movement of molecule from a region of lower concentration to region of higher concentration. Molecule down a concentration gradient

Which is true about active transport?

• It requires energy
• it does not require energy
• It moves substances down the concentration gradient
• it moves material from high to low concentration