Cell Membrane transport: Passive

Multiple Choice

Why is the cell membrane considered the gateway to cellular life?

• Because it controls the movement of substances in and out of the cell

• Because it provides energy to the cell

• Because it stores genetic information

• Because it produces proteins

Fluid Mosaic Model

- The cell membrane is composed of a phospholipid bilayer that is soft and flexible, allowing movement.

- Proteins, lipids, and sugars are embedded within this layer.

- This creates a complex and varied structure.

- The term "fluid' indicates that these molecules can move around.

- The "mosaic" describes how these different molecules come together like a colorful mosaic artwork.

Multiple Choice

Which components make up the structure of the cell membrane?

• Phospholipids, proteins, carbohydrate chains

• DNA, RNA, ribosomes

• Chlorophyll, mitochondria, lysosomes

• Cell wall, cytoplasm, nucleus

Multiple Select

Which of the following statements about passive and active transport is/are correct?

• Passive transport moves substances from high to low concentration.

• Active transport requires chemical energy like ATP.

• Passive transport requires chemical energy.

• Active transport moves substances against the concentration gradient.

Multiple Choice

What direction will most of the molecules have to move through diffusion in order to achieve equal concentrations on both sides of the membrane?

• To the inside of the cell.

• To the outside of the cell.

• The molecules will move in and out because they are at equal concentrations.

• The molecules will not move.

Multiple Choice

Which type of passive transport involves the movement of molecules from high to low concentration through a protein channel or carrier protein in the cell membrane?

• Facilitated diffusion

• Osmosis

• Active transport

• Simple diffusion

Labeling

Label each type of passive transport

Drag labels to their correct position on the image

Diffusion

Facilitated Diffusion

Multiple Choice

Which of the following statements about osmosis is correct?

• Osmosis is the movement of water across a semipermeable membrane.

• Osmosis requires chemical energy to occur.

• Osmosis involves the movement of solute molecules only.

• Osmosis moves water from low to high concentration.

Drag and Drop

Water would ​

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the cell by ​

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.

Drag these tiles and drop them in the correct blank above

enter

exit

osmosis

active transport

Match

Match the following types of passive transport with the correct diagram.

Simple diffusion

Facilitated Diffusion

Osmosis

• Simple diffusion

• Facilitated Diffusion

• Osmosis

Multiple Select

Select all the characteristics that apply to passive transport.

• High to Low Concentration

• No chemical energy required

• Along the gradient

• Against the gradient

Multiple Choice

What are the main components of the cell membrane that are involved in transport?

• Phospholipids, proteins, and carbohydrate chains

• DNA and RNA

• Mitochondria and ribosomes

• Cell wall and nucleus