Phloem Transport: Flow from Source to Sink

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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

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Which one of the following is a protein deficiency disease?

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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?

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

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Ringing or girdling experiment was first performed by

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Phloem sap is mainly composed of

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Read the given statements and select the correct option.
Statement 1 : Xylem transport is unidirectional.
Statement 2 : Phloem transport is bi-directional.

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Phloem helps in translocation of

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Identify the process taking place in this experiment.

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Assertion : The movement of photosynthates is unidirectional.

Reason : Movement of photosynthates occurs with the water.

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“Cytoplasmic streaming hypothesis” is concerned with

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Aphid stylate sap analysis can be used to know

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Which ions are concerned with sugar transport?

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

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

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Which of the tissue is more important for translocation of sucrose

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

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

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