B3 Active Transport

Drag and Drop

Diffusion is the ​

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movement of particles from an area of​

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concentration to an area of low ​

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down a concentration ​

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net

high

concentration

gradient

low 

slope

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Osmosis is the movement of ​

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from a ​

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to a ​

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across a ​

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water

high water potential

low water potential

semi permeable membrane

particles

high concentration

low concentration

impermeable membrane

Drag and Drop

Osmosis can also be described as the movement of water from a ​

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to a ​

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dilute solution

concentrated solution

Multiple Choice

Which of the following best describes the process shown in the diagram labeled 'Moving down a concentration gradient'?

• Movement of particles from high to low concentration

• Movement of particles from low to high concentration

• Movement of water only

• Movement of particles using energy

Fill in the Blanks

The energy required for active transport is called

Multiple Select

Which of the following are true about active transport?

• It moves particles from low to high concentration.

• It requires energy.

• It occurs across semi-permeable membranes.

• It moves particles from high to low concentration.

Multiple Choice

Active transport requires cellular energy and moves substances from area of ________________ concentration to ______________ concentration.

• low, low

• low, high

• high, low

• high, high

Multiple Choice

When is energy NOT required in cellular transport?

• With the concentration gradient

• Against the concentration gradient

Fill in the Blanks

The energy used for active transport in cells comes from the process of

.

Multiple Choice

What is the most common source of energy for active transport?

• Carrier protein

• ATP

• Facilitated diffusion

• Osmosis

Multiple Choice

What is the role of a carrier protein in active transport?

• To move molecules from high concentration to low concentration

• To move molecules from low concentration to high concentration

• To convert ATP into ADP

• To facilitate diffusion

Multiple Choice

What is required for the protein pump to change shape during active transport?

• Carrier protein

• ATP

• Facilitated diffusion

• Osmosis

Multiple Choice

What is the difference between active and passive transport?

• Active transport requires energy, passive transport doesn't.

• Active transport molecules move across a cell membrane and passive transport doesn't.

• Active transport involves oxygen and water molecules, passive transport does not.

Multiple Choice

The cell membrane is semi-permeable. What does "permeable" mean?

• Extremely think

• Extremely thin

• Able to be penetrated

• Able to be broken

Multiple Choice

If you were looking for transport proteins, where would you find them?

• Inside a cell's nucleus

• Lodged in the cell's membrane

• Inside a cell's cytoplasm

• Inside the cell's golgi body

Multiple Choice

How do transport proteins move substances across membranes?

• They move inside the the membrane, carrying the substance

• They change shape

• They rip open a temporary hole in the membrane