AP Bio Cell Transport

The sodium-potassium pump is an important component of cellular membranes. Based on this illustration, which statement is correct?

• a. This is an example of facilitated transport.

• b. Sodium is pumped into the cell.

• c. This is an example of active transport.

• d. Potassium moves with its concentration gradient.

Tags

NGSS.HS-LS1-3

Passive transport moves substances…

• From high to high concentration

• From high to low concentration

• From low to low concentration

• From low to high concentration

Identify a peripheral protein

• structure a

• strucure b

• structure g

• structure h

Facilitated diffusion

• Does not use transport proteins and is a type of active transport

• Does not use transport proteins and is a type of passive transport

• Uses transport proteins and is a type of active transport

• Uses transport proteins and is a type of passive transport

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

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

Match the following vocabulary terms and definitions.

• Isotonic

• Same concentration; the solution and cell have equal concentration of solutes (particles), so water moves equally between the cell and solution.

• Hypotonic

• High concentration; the solution has more solutes than the cell, causing water to move out of the cell and into the solution.

• Hypertonic

• Low concentration; the solution has less solutes than the cell, causing water to move into the cell and out of the solution.

​ (a)   brings glucose into cells.

• Insulin

• Glucagon

• Glycogen

Process of exporting materials with vesicles?

• Endocytosis

• Exocytosis

• Facilitated Transport

• Simple Diffusion

Where are the proteins made for export by exocytosis?

• Golgi

• Nucleus

• Ribosome

• Rough ER