9.2: Transport in the Phloem of Plants

What is translocation?

From where and where to are organic solutes transported?

How does the process of translocation occur?

What are sources?

What are sinks?

How does phloem transport biochemicals?

Difference between sources and sinks

How are organic compounds loaded into the phloem sieve tubes at the source?

What is phloem loading?

What are the 2 different ways phloem loading can occur?

What is the apoplast route?

What is the symplastic route?

How does the incompressibility of water allow transport by hydrostatic pressure gradients?

What are the three main functions of phloem?

What are the 3 features of a sieve tube?

Why do sieve tube cells have to be living?

How does companion cells work?

Why do phloem sieve tubes have rigid cell walls?

What is a sieve tube cell?

What are sieve plates?

How is sucrose moved into phloem at source?

Why and how does osmosis occur within the phloem?

What is a phloem?

What are sieve tubes?