Cell Transport

Use the diagram to explain the function of the plasma membrane. Select the BEST Answer Choice

• The plasma membrane provides a layer of protection for the cell.

• The plasma membrane maintains homeostasis by controlling substances that enter and leave the cell.

• The plasma membrane is flexible and adjusts the amount of cholesterol controlling temperature.

• The plasma membrane contains phospholipids that are hydrophobic and hydrophilic.

Tags

NGSS.HS-LS1-3

Select the answer that BEST explains the diagram.

• Simple Diffusion. Molecules are moving from a high concentration to a low concentration through a protein.

• Facilitated Diffusion. Molecules are moving from low concentration to a high concentration through a protein.

• Simple Diffusion. Molecules are moving from a low concentration to a high concentration through a protein.

• Facilitated Diffusion. Molecules are moving from a high concentration to a low concentration through a protein.

Select all the answer choices that describe active transport.

• Molecules move with the gradient to areas of low concentration.

• Molecules move against the gradient to areas of high concentration.

• Energy is not required.

• Cell uses a protein to move molecules from areas of high concentration to low concentration.

• Cell uses a protein to pump molecules from low concentration to high concentration.

True or False.

Both Endocytosis and Exocytosis are passive transport

• True

• False

The Golgi apparatus is responsible for exporting proteins through the cell membrane. ________________ is the process and it is _______________ transport

• Endocytosis; active

• Endocytosis; Passive

• Exocytosis; Active

• Exocytosis; Passive

Osmosis is diffusion of water. Select the BEST answer choice.

• Molecules move down the concentration gradient through the phospholipids.

• Molecules move up the concentration gradient through proteins.

• Molecules move up the concentration gradient through the phospholipids.

• Molecules move up the concentration gradient through proteins.

This type of cell transport can be identified as cells are "Drinking" . This is ___________________ a form of __________________. Select the BEST Answer Choice

• Phagocytosis; Endocytosis

• Pinocytosis; Endocytosis

• Phagocytosis; Exocytosis

• Phagocytosis; Exocytosis

Why does the Sodium Potassium Pump require energy? Select the BEST Options.

• Na+ is moving with the concentration gradient. (High to Low)

• Na+ is moving against the concentration gradient. (Low to High)

• K+ is moving with the concentration gradient.

• K+ does not move through the sodium potassium pump.

What is one topic in this unit that you are still confused about?

Identify the process.

• Active Transport; Moves molecules with the concentration gradient.

• Active Transport; Moves molecules against the concentration gradient

• Passive Transport; Moves molecules with the concentration gradient

• Passive Transport; Moves molecules against the concentration gradient.