$A$ 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?
- AAcidic
- BAlkaline
- CLow refractive index
- DAbsence of sugar
Explore More
Similar Questions
Organic substances such as sugars are translocated in phloem can be demonstrated by
Medium
View SolutionAssertion : Long distance flow of photoassimilates in plants occurs through sieve tubes.
Reason : Mature sieve tubes have parietal cytoplasm and perforated sieve plates.
Reason : Mature sieve tubes have parietal cytoplasm and perforated sieve plates.
Which of the following is responsible for changing the direction of the source and sink in plants?
Medium
View SolutionWho described the mass flow hypothesis?
Easy
View SolutionVedclass Products
For Students
Vedclass Test Series
Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.
Start Free TrialFor Teachers
Exam Paper Generator
Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.
Try FreeFor Institutes
Online Exam Module
Live online exams with unlimited students, 360° analytics & white-label branding.
See Demo