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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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Food is transported by vascular tissue phloem from a source to sink. Source is a part that synthesises food and sink is a part that stores or needs the food. Since source and sink can be reversed depending on plant’s need, therefore direction of movement of sugar in phloem can be bidirectional, i.e., both upwards or downwards.
Phloem sap is generally alkaline with pH ranging from 7.3 - 8.5.
Phloem sap is generally alkaline with pH ranging from 7.3 - 8.5.
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Uploaded on: 4/13/2023
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Uploaded on: 11/16/2022
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Question Text | 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? |
Updated On | Apr 13, 2023 |
Topic | Transport in Plants |
Subject | Biology |
Class | Class 11 |
Answer Type | Text solution:1 Video solution: 3 |
Upvotes | 364 |
Avg. Video Duration | 7 min |