Phloem Transport: Flow from Source to Sink
Phloem Transport: Flow from Source to Sink: Overview
This topic describes phloem transport. It explains how the phloem sap transports water and sucrose, but other sugars, hormones and amino acids are also transported or translocated through phloem.
Important Questions on Phloem Transport: Flow from Source to Sink
Which one of the following is a protein deficiency disease?

A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicates that it is phloem sap?

Removal of a ring of bark from the trunk of a tree eventually kills it because

Ringing or girdling experiment was first performed by

Phloem sap is mainly composed of

Read the given statements and select the correct option.
Statement : Xylem transport is unidirectional.
Statement : Phloem transport is bi-directional.

Phloem helps in translocation of

Identify the process taking place in this experiment.

Assertion : The movement of photosynthates is unidirectional.
Reason : Movement of photosynthates occurs with the water.

Sinks are related to

“Cytoplasmic streaming hypothesis” is concerned with

When a plant is girdled

Aphid stylate sap analysis can be used to know

Which ions are concerned with sugar transport?

Which of the following statement is incorrect w.r.t. Munch theory?

Which of the following technique has been used by Mittler for collecting the phloem sap

Which of the tissue is more important for translocation of sucrose

By cut in a ringing of tissues, what can be achieved

By cutting the ring of phloem which of the following process is affected

Who proposed that the movement of materials in the plant body takes place upward and downward?
