Animation

null

Diffusion

Animation

Video

Video Player is loading.

Current Time 0:00

/

Duration 0:00

Loaded: 0%

Stream Type LIVE

Remaining Time -0:00

1x

Chapters

descriptions off, selected

captions settings, opens captions settings dialog
captions off, selected

This is a modal window.

Beginning of dialog window. Escape will cancel and close the window.

TextColorTransparency

BackgroundColorTransparency

WindowColorTransparency

Font Size

Text Edge Style

Font Family

End of dialog window.

This is a modal window. This modal can be closed by pressing the Escape key or activating the close button.

This is a modal window.

Animation Assessment

Question 1 of 5

As molecules move down their concentration gradient, from a more ordered state to a less ordered state, entropy:

Question 1 choicesChoice A., is increasing.Choice B., is decreasing.Choice C., remains the same.

Correct.

Incorrect.

Question 2 of 5

Diffusion is best described as the random movement of molecules influenced by:

Question 2 choicesChoice A., the thermal energy of the environment.Choice B., energy transferred from molecular collisions in the cell.Choice C., the width of the plasma membrane of the cell.Choice D., the thermal energy of the environment and energy transferred from molecular collisions in the cell.Choice E., the thermal energy of the environment and the width of the plasma membrane.

Correct.

Incorrect.

Question 3 of 5

Fill in the blank: Molecules that are BLANK and BLANK are able to move across the cell membrane via simple diffusion.

Question 3 choicesChoice A., hydrophobic; largeChoice B., hydrophobic; smallChoice C., hydrophilic; largeChoice D., hydrophilic; small

Correct.

Incorrect.

Question 4 of 5

At equilibrium, there will be no net movement of molecules across the cell membrane.

Question 4 choicesChoice A., trueChoice B., false

Correct.

Incorrect.

Question 5 of 5

Simple diffusion of a molecule down its concentration gradient requires an input of energy to the system.

Question 5 choicesChoice A., trueChoice B., false

Correct.

Incorrect.

Assessment Summary

Activity results are being submitted...