Unit 04 Transport

What organelle is shown in this diagram?

• cell wall

• nucleus

• mitochondrion

• plasma membrane

Tags

NGSS.MS-LS1-2

Which terms accurately describe the processes?

• Process 1: Active Transport

  Process 2: Passive Transport

• Process 1: Passive Transport

  Process 2: Active Transport

• Process 1: Facilitated Diffusion

  Process 2: Active Transport

• Process 1: Facilitated Diffusion

  Process 2: Passive Transport

The diagram shows two types of blood cells, normal blood cells and blood cells after they have been placed in an unknown solution.

Into what type of solution were the cells placed?

• hypotonic

• hypertonic

• isotonic

• osmotic

Tags

NGSS.HS-LS1-3

How is the plasma membrane best described?

• a phospholipid monolayer with embedded proteins surrounding the cell

• a complex of small protein subunits surrounding the cell

• a phospholipid bilayer with embedded and surface proteins surrounding the cell

• a carbohydrate chain attached to a lipid layer surrounding the cell

What process helps to move the molecules shown in the diagram across the membrane?

• active transport

• facilitated diffusion

• osmosis

• simple diffusion

What is shown in the area labeled Z?

• carrier proteins

• phospholipid bilayer

• phosphorous bilayer

• receptor proteins

Which statement best explains what happens when a cell is placed in a sugar solution with a sugar concentration that is lower than that of the cytoplasm of the cell?

• Water will move into the cell by osmosis.

• Water will move out of the cell by osmosis.

• Sugar molecules will move into the cell by osmosis.

• Sugar molecules will move out of the cell by osmosis.

What helps the cell get rid of the waste material?

• utilization of ATP molecules

• dilution of a part of the cytoplasm

• shrinking of the plasma membrane

• absorbing heat from the environment

What is the advantage of homeostasis?

• It allows organisms to live in a range of environments.

• It allows organisms to avoid a variety of predators.

• It allows organisms to blend into their environment

• It allows organisms to reproduce at a faster rate

Tags

NGSS.HS-LS1-3

The concentration of glucose in solution A is 5%, and the concentration of glucose in solution B is 15%. Which statement correctly describes the movement of water between the two solutions?

• Water will diffuse from solution A to solution B.

• Water will diffuse from solution B to solution A.

• There will be diffusion of sugar from solution A to solution B.

• There will be diffusion of sugar from solution B to solution A.