Glucose Absorption in the Small Intestine

Animation

Video

Animation: Glucose absorption in the small intestine

Video Player is loading.

Current Time 0:00

Duration 0:00

Loaded: 0%

0:00

Stream Type LIVE

Remaining Time -0:00

Chapters

descriptions off, selected

captions settings, opens captions settings dialog
captions off, selected
English Captions

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 4

All cells of the body contain Na⁺/K⁺ pumps in their cell membranes. The Na⁺/K⁺ pumps function to:

Question 1 choicesChoice A., maintain equal concentrations of Na⁺ inside and outside of the cell.Choice B., maintain equal concentrations of K⁺ inside and outside of the cell.Choice C., establish concentration gradients—higher Na⁺ outside and higher K⁺ inside the cell.Choice D., transport glucose from the lumen of the intestine into the epithelial cells.

Correct.

Incorrect.

Question 2 of 4

Shortly after eating a candy bar, where would the increased concentration of glucose be first evident?

Question 2 choicesChoice A., the lumen of the small intestineChoice B., the cytoplasm of the epithelial cells lining the lumen of the small intestineChoice C., the blood flowing past the basal membrane of the epithelial cells of the lumen

Correct.

Incorrect.

Question 3 of 4

Fill in the blank: Continued glucose transport into cells lining the lumen of the small intestine requires a BLANK concentration gradient and a transmembrane protein that is a BLANK.

Question 3 choicesChoice A., glucose; glucose channel proteinChoice B., K⁺; glucose channel proteinChoice C., Na⁺; Na⁺-glucose cotransporterChoice D., Na⁺; K⁺-glucose cotransporterChoice E., K⁺; K⁺-glucose cotransporter

Correct.

Incorrect.

Question 4 of 4

Glucose transport out of intestinal cells into the bloodstream requires which of the following? Select all that apply.

The general chemical nature of a hormone can be used to predict:

a Na⁺ concentration gradient between the blood and the intestinal cell

a Na⁺-glucose cotransporter in the membrane facing the blood

a glucose channel protein on the cell surface facing the blood

a higher concentration of glucose in the intestinal cells

a Na⁺ channel connecting the intestinal cell to the blood stream

Correct.

Incorrect.

Assessment Summary

Activity results are being submitted...