Mechanism of stomatal opening, Biology

Assignment Help:

Mechanism of Stomatal Opening

It has been known for over a century that stomata open because of reversible turgor changes in the guard cells. Stomata open when turgor in the guard cells is high and close when it is low. It is clear that the turgor would increase only if the solute content of guard cells would be higher than the neighbouring epidermal cells.

Falling of solute content would decrease turgor. How do the two guard cells on swelling form an aperture? The cell wall of guard cells is peculiar because the cellulose micro fibrils which constitute the major structural feature of plant cell are arranged radially extending from the centre towards the periphery.


Related Discussions:- Mechanism of stomatal opening

Define minerals, Define minerals Definition of minerals, as it applies ...

Define minerals Definition of minerals, as it applies to food and nutrition usually refers to  the elements other than carbon, hydrogen, oxygen and nitrogen that are present in

Biogeography, Biogeography : This is the distribution of organisms in vario...

Biogeography : This is the distribution of organisms in various parts of the earth. Over periods of ecological changes, biogeography contains the study of plant or animal species i

Define calcium - the macronutrient, Define Calcium - The Macronutrient? ...

Define Calcium - The Macronutrient? Calcium is an important mineral found mainly in bone and teeth. It is widely distributed in food substances such as milk, cheese, egg yolk,

Care required by a hiv infected person, Care required by a HIV infected per...

Care required by a HIV infected person: 1) An HIV infected person needs acceptance and support from the family members. The home is very important place for a person with AIDS.

Define urinary excretion test - thiamin status, Define Urinary Excretion Te...

Define Urinary Excretion Test - Thiamin Status? The urinary excretion of thiamin is an index of recent dietary intake of the vitamin. Hence, determination of thiamin in urine s

How much of solution to add 10ng of dna in a reaction, I dissolve 4µg of DN...

I dissolve 4µg of DNA in 1mL of water. How much of this solution would I need in order to add 10ng of DNA in a reaction?

Observation of hemichordata, Q. Observation of Hemichordata ? • identif...

Q. Observation of Hemichordata ? • identify Balanoglossus as a hemicliordate and give its scientific and common name. • classify Balanogiossus LIP to the level of order.

Explain the origins of replication, Normal 0 false false fa...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

How fever, How Fever,Illness,Infections,Injury affects the BMR? Any ill...

How Fever,Illness,Infections,Injury affects the BMR? Any illness or fever caused by an illness influences the metabolic rate. Fevers increase the metabolic rate by about 7% for

Evaluating inducible ischaemia after revascularisation, Q. Evaluating Induc...

Q. Evaluating Inducible Ischaemia after revascularisation? Most early treadmill stress tests are performed either at discharge or within two weeks of an MI ard terminated with

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