The theory of organic solutes moving from 'the source to the sink' was proposed by
A. Munch
B. Van Helmont
C. Arnon
D. M. Calvin
Answer: Option A
Solution(By Examveda Team)
The theory of organic solutes moving from 'the source to the sink' was proposed by Munch.It also known as the Pressure flow hypothesis or mass flow hypothesis, is the best-supported theory to explain the movement of sap through the phloem. It was proposed by Ernst Munch, a German plant physiologist in 1930.
The gradient of sugar from source to sink causes pressure to flow through the sieve tube toward the sink. The pressure gradient is established as a consequence of the entry of sugars in sieve elements at the source and the removal of sucrose at the sink.
Related Questions on Genetics and Plant Breeding
Genetic code was discovered by
A. Khorana and Methaei
B. Flemming and Methaei
C. Holley, Nirenberg and Khorana
D. Holley and Nirenberg
Progeny of breeder seed is referred to as
A. Breeder seed
B. Nucleus seed
C. Foundation seed
D. Certified seed
Molecular basis of organ differentiation depends on the modulation in transcription by
A. RNA pol
B. Transcription factor
C. Anticodon
D. All of the above
The phenomenon of linkage was first observed by
A. Bateson and Punnet
B. Nilson
C. Hugo de Vries
D. Mendel
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