Cells and Cell Transport Review

What is facilitated diffusion?

• Transport that uses proteins to help move molecules across the membrane. 

• Movements of substances through a membrane. 

• When molecules spread from High to Low concentration on their own. 

• When pressure pushes something through a membrane. 

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NGSS.MS-LS1-2

The job of the Cell Membrane is to....

• Protect the cell

• Control what materials enter/leave the cell

• Photosynthesis

• Store food/water/wastes

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NGSS.MS-LS1-2

An Amoeba is a unicellular, animal-like protist that lives in ponds and streams. According to cell theory, where did this cell come from?

• another pre-existing amoeba cell.

• energy from sun that allowed the protist to reproduce.

• a multicellular organism.

• the nonliving environment.

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NGSS.MS-LS1-1

What tool do you use to view the cells?

• metric ruler

• centrifuge

• microscope

• telescope

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NGSS.MS-LS1-1

Examples of this would be diffusion, (41)​ (a)   (the diffusion of water), and facilitated diffusion. Active transport requires the use of energy because it is the movement of molecules from a (42)​ (b)   to (43)​ (c)   concentration (or (44)​ (d)   the concentration gradient).

• Osmosis

• Active Transport

• endocytosis

• exocytosis

• low

• high

• against

Answer explanation

Osmosis is the correct choice as it refers to the diffusion of water. 'Low' and 'high' are accurate for the blanks 39 and 40 respectively, indicating movement against the concentration gradient.

Examples of this would be diffusion, (41)​ (a)   (the diffusion of water), and facilitated diffusion. Active transport requires

the use of energy because it is the movement of molecules from a (42)​ (b)   to

(43)​ (c)   concentration (or (44)​ (d)   the concentration gradient).

• Osmosis

• Active Transport

• endocytosis

• exocytosis

• low

• high

• against

Answer explanation

Osmosis is the correct choice as it refers to the diffusion of water. 'Low' and 'high' are accurate for the blanks 39 and 40 respectively, indicating movement against the concentration gradient.

Which of the following is NOT a cell theory.

• All non-living things are made of cells

• All cells come from pre-existing cells

• Cells are the basic unit of structure and function of all living things

Tags

NGSS.MS-LS1-1

All living things are made up of...

• cells

• cell tissues

• organ

• organ systems

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NGSS.MS-LS1-1

An organism made of one cell is called

• unicellular organism

• multicellular organism

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NGSS.MS-LS1-1

What kind of transport does not require energy?

• Active 

• Vacuole 

• Passive 

• Na/K Pump