Companion cells, Biology

Assignment Help:

Companion cells are the specialized cells in the phloem which load sugars into the sieve elements and help to maintain a functional plasma membrane in the sieve elements.

1689_companion cells.png


Related Discussions:- Companion cells

Influence of yolk on cleavage, Influence of Yolk on Cleavage Though b...

Influence of Yolk on Cleavage Though biological significance of yolk is to provide nourishment to the developing embryo, it is not part of the active cytoplasm. Yolk is dead

What is sarcoplasmic reticulum, An increase in the calcium conductance of a...

An increase in the calcium conductance of all sarcoplasmic reticulum membranes of a skeletal muscle with no external forces on it leads to A. an increase in the amount of calci

Hand washing in sterilization process, Q. Hand Washing in sterilization pro...

Q. Hand Washing in sterilization process? Hand washing is considered the single most important measure to reduce the risk of transmitting organisms to patients and HCWs (health

Equivalence point and end point - nutritional biochemistry, Equivalence po...

Equivalence point and end point - Nutritional  Biochemistry? Titrimetric analysis volumetrically measures the amount of reagent, often called a titrant, required to complete a

Scientific american article suggests some improvement, The human skeleton h...

The human skeleton has evolved from that of four-legged animals. Unfortunately, the adaptation is far from perfect; thus, our upright posture causes problems like back age and the

Water: An Essential for Life, What is the reason behind the high surface te...

What is the reason behind the high surface tension of water?

Explain the importance of the auxin, a) How is the milk production regulate...

a) How is the milk production regulated by hormones in human female? Define. b) Explain the importance of the auxin / cytokinin ratio in plant tissue culture.

Explain the role of calcium ions and tropnin, Explain the role of calcium i...

Explain the role of calcium ions, troponin and F-Actin during contraction in striated muscles of humans?

Define the replication of dna strands, Which of the following is a true sta...

Which of the following is a true statement regarding the replication of DNA strands? A. The products of replication contain one double helix made exclusively of parental DNA an

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd