B25 4-5 Cell Transport & Osmosis Quick Check

 Select ALL the characteristics of ACTIVE transport:

• Requires ATP

• Moves only tiny, noncharged molecules

• Moves molecules from an area of high concentration to a low concentration.

• Moves molecules against (up) the concentration gradient

• Moves big/bulky materials in and out of the cell through the process of endocytosis and exocytosis.

The cell membrane is 

• selective permeable because it allows some things to pass but others cannot.

• not selective permeable because it allows all molecules to pass through.

• able to manually sort through the molecules

• not able to maintaining homeostasis

 Which of the following involves passive transport?

• The movement of sodium ions through the gut wall into the blood

• The movement of carbon dioxide into a leaf

• The movement of mineral charged ions into a plant root hair cell

• The movement of bulky materials exiting the cell using exocytosis

The cell membrane has how many phospholipid layer?

• 1

• 2

• 3

• 4

• 5

 Select ALL the characteristics of PASSIVE transport:

• Simple diffusion and facilitated diffusion are classified as passive

• Moves molecules along (down) the concentration gradient

• Moves big molecules from high to low concentration with the help of a gated channel

• Moves molecules against the concentration gradient

• Requires ATP

Where will the water go?

• Into the cell

• Equally in & out - it's isotonic

• There is no water

• Out of the cell

Emphysema is a lung condition that can cause shortness of breath. Figure 4 shows the alveoli in the lungs of a healthy person and the alveoli in the lungs of a person with emphysema. 

There is a higher concentration of oxygen in the alveoli compared to the blood. 

Movement of oxygen from alveoli in the lungs into blood. What type of transport is this?

• Facilitated diffusion

• Simple diffusion

• Active Transport

• Osmosis

• Endocytosis

Use the image to answer the following question. Choose TWO answers, which statements accurately describe how molecules are being transported in this model?

• Molecules diffuse from regions of low concentration to high concentration.

• Diffusion facilitated by channel proteins is a form of passive transport.

• Molecules diffuse using facilitated diffusion, which requires energy.

• Molecules diffuse down the concentration gradient.

• Diffusion requires energy.

  True or False: ATP Energy would be needed in the type of transport shown in this picture.   

• True

• False

Tap on all the pictures of ACTIVE transport.