Which of the following biomes spans the largest annual mean temperature range, but the narrowest mean precipitation range?

#Question id: 11743

#Unit 6. System Physiology – Plant

The wall between the two mature sieve tube elements contain a sieve plates, these sieve plate pores are open —that is, unobstructed by

#Question id: 11742

#Unit 6. System Physiology – Plant

Mature sieve elements external view, showing sieve plates. The pores in the sieve plates between the sieve tube elements are open channels, what is the relevance of this open pores in the sieve plates?

#Question id: 11741

#Unit 6. System Physiology – Plant

phloem transport indicating the importance of long distance transport in plants, the experiments demonstrated that removal of a ring of bark around the trunk of a tree, which removes the phloem. What will be its effect?

#Question id: 11740

#Unit 6. System Physiology – Plant

Some given characteristics of the two types of sieve elements in seed plants such as Sieve tube elements and Sieve cells. Find out the  true characteristics of sieve tube elements from the given statements;

i) Found in angiosperms

ii) Sieve plate pores are open channels

iii) Albuminous cells sometimes function as companion cells

iv) P-protein is present in all eudicots and many monocots

v) There are no sieve plates; all sieve areas are similar

#Question id: 11050

#Unit 6. System Physiology – Plant

Three dimensional reconstructions of Arabidopsis sieve plates using a staining technique that can be used to image entire plant organs and Open sieve pores are visible as well as callose plug are also visible which technique used to analyze

#Question id: 11049

#Unit 6. System Physiology – Plant

Match the CORRECT combination of the phloem elements with its function.