-This Figure Shows the Pathways of Water and Mineral Uptake

question 49

Multiple Choice

-This figure shows the pathways of water and mineral uptake by the roots.What does "a" represent?

• A)apoplast route
• B)root hairs
• C)symplast route
• D)vascular cylinder
• E)endodermis and Casparian strip

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Definitions:

Segmental Contractions

Segmental contractions refer to the type of muscle contractions in the digestive tract that mix and move the contents back and forth but don't necessarily move them along the tract.

Chyme

The semi-fluid mass of partly digested food expelled by the stomach into the duodenum.

Small Intestine

The part of the gastrointestinal tract between the stomach and large intestine, where most of the digestion and absorption of nutrients occurs.

Intestinal Motility

The contraction of the muscle layers in the intestines that facilitates the movement of its contents through the digestive system.