Cellular Transport 5C

In animal cells, the sodium-potassium pump moves sodium and potassium ions against a concentration

gradient across the cell membrane.

1) What type of transport is used,

2) AND why is this type of transport necessary?

Read the question carefully. Then enter your answers in the box below.

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NGSS.HS-LS1-3

The diagram represents the movement of three different substances across a cell membrane.

Moving which of these substances across the cell membrane requires energy from ATP?

• 2 only

• 3 only

• 1 and 2

• 1 and 3

Which statements best describe the difference between active transport and passive transport?

• Active transport occurs only in cells that require large amounts of energy.

  Passive transport occurs in all cells.

• Active transport requires ATP.

  Passive transport does not require ATP.

• Active transport moves substances along the concentration gradient.

  Passive transport moves substances against the concentration gradient.

• Active transport occurs in all cells.

  Passive transport requires ATP.

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NGSS.HS-LS2-3

A diagram of removing glucose from the blood by a fat cell is shown.

Which statement best describes the role of insulin and glucose transport proteins in this process?

• They stimulate a response from white blood cells during glucose entry into the cell.

• They keep the plasma membrane flexible when glucose is removed from the blood.

• They help to maintain stable glucose levels both inside and outside the cell

• They utilize the excess energy the cell produces to create more glucose

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NGSS.HS-LS1-3

Which type of movement across a cell's plasma membrane require

energy supplied by ATP?

• Passive transport

• Simple diffusion

• Active transport

• Osmosis

The graph shows the oxygen consumed by an athlete during different

stages of training. Based on the graph, which process is occurring between minute 5

and minute 10?

• Nuclei are building amino acids for energy storage.

• Ribosomes are building carbohydrates to increase energy output.

• Chloroplasts are using energy to produce oxygen.

• Mitochondria are using oxygen to produce ATP.

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NGSS.HS-LS1-7

NGSS.HS-LS2-3

Which statement describes the process of osmosis in an animal cell?

• Sugar molecules move across the plasma membrane until the cell has enough energy to grow in size and divide.

• Water molecules move across the plasma membrane until solute concentrations are equal on both sides of the membrane.

• Ions move across the plasma membrane until the inside of the cell has a higher

  concentration of positive charges.

• Enzymes move across the plasma membrane until the cell has completed metabolism.

Which table correctly identifies how the plasma membrane contributes to the maintenance of

cellular homeostasis?

• 
• 
• 
• 

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NGSS.HS-LS1-3

A type of cellular transport is shown.

Which description best identifies this type of cellular transport?

• Active transport, because energy is being used to move molecules against the

  concentration gradient

• Facilitated diffusion, because energy is being used to move molecules with the

  concentration gradient

• Osmosis, because energy is not being used to move molecules with the concentration

  gradient

• Endocytosis, because energy is not being used to move molecules against the

  concentration gradient

The diagram shows molecules that a mitochondrion uses and produces during a cellular

process.

Which other molecule is a product of this process?

• DNA

• RNA

• C₆H₁₂O₆ (Glucose)

• ATP

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NGSS.HS-LS1-7