Transport in plants

Front

Identify the X- cross in the center of the root.

Back

Xylem

Front

Relate the structure of xylem vessel elements to their functions

Back

• - hollow, no cytoplasm or nucleus : no restriction for the flow of water

• -made of lignin: for strength, prevents collapsing

• -pits: for lateral movement of water

Front

What is the function of xylem vessel elements?

Back

The function of xylem vessel elements is to transport water and minerals from the roots to the rest of the plant.

Front

What is the function of phloem sieve tube elements?

Back

The function of phloem sieve tube elements is to transport organic compounds, particularly sugars, throughout the plant.

Front

What is the role of companion cells in the phloem?

Back

Companion cells support the metabolic functions of sieve tube elements and help in the loading and unloading of sugars.

Front

What is the apoplast pathway for water transport?

Back

The apoplast pathway involves the movement of water through the cell walls and intercellular spaces without crossing cell membranes.

Front

What is the symplast pathway for water transport?

Back

The symplast pathway involves the movement of water through the cytoplasm of cells, connected by plasmodesmata.