SB6d: Transpiration And Translocation Keywords

Question 1

Companion cell

Answer 1

A specialised cell located in the phloem tissue of plants. They pump sucrose into sieve cells.
lignin

Question 2

Lignin

Answer 2

A type of polymer that is combined with cellulose in some plant cell walls to make the cells woody, e.g. in xylem cells.

Question 3

Phloem tissue

Answer 3

Living tissue formed of sieve tubes and companion cells that transports sugars and other soluble compounds around a plant.

Question 4

Photometer

Answer 4

A device used for measuring the rate of water uptake by a plant.

Question 5

Sieve tube/cell

Answer 5

Tubes formed of phloem sieve cells (so called because the cells have holes in their ends). The tubes carry sugars and other soluble compounds around the plant.

Question 6

Translocation

Answer 6

The transport of sugars (mainly sucrose) and other soluble compounds in the phloem tissue of a plant.

Question 7

Transpiration

Answer 7

The flow of water into a root, up the stem and out of the leaves.

Question 8

Xylem vessel/cell

Answer 8

A long, thick-walled tube found in plants, formed from many dead xylem cells. The vessels carry water and dissolved mineral salts through the plant.
SB6e Plant adaptations