Plant Organ System Flashcards

All 6 cards in this deck

Which three plant organs form the organ system for transport of substances around a plant?

The roots, stem and leaves.

How is a root hair cell adapted for the uptake of water and mineral ions?

A long hair-like extension gives a large surface area, the cell wall is thin, and it has many mitochondria to release energy for active transport.

By which process does a root hair cell take up water, and by which process does it take up mineral ions?

Water by osmosis; mineral ions by active transport.

Describe the structure and function of xylem tissue.

Hollow tubes of dead cells strengthened by lignin; they carry water and mineral ions from the roots to the stems and leaves.

True or false? Xylem transports dissolved sugars from the leaves to the rest of the plant.

False. Xylem carries water and mineral ions upwards; phloem carries dissolved sugars.

True or false? Root hair cells contain chloroplasts.

False. They are underground and receive no light, so they have no chloroplasts.