What are plant cell vacuoles, Biology

Assignment Help:

What are plant cell vacuoles? What are their functions? How is the covering membrane of the vacuoles called?

Ans) Plant cell vacuoles are cell structures delimited by membranes within which there is an aqueous solution made of various substances like carbohydrates and proteins. In young plant cells many small vacuoles can be seen; within adult cells the most kind of the internal area of the cell is occupied by a central vacuole.

The major function of the vacuoles is the osmotic balance of the intracellular space. They act as "an external space" inside the cell. Vacuoles absorb or release water in response to the cellular metabolic necessities by enhancing or lowering the concentration of osmotic particles dissolved in the cytosol. Vacuoles also serve as storage place for some substances.

The membrane that delimits the vacuoles is known as tonoplast, named after the osmotic function of the structure.

 


Related Discussions:- What are plant cell vacuoles

Give choice of catheters for ventriculography, Q. Give Choice of Catheters ...

Q. Give Choice of Catheters for Ventriculography? 1) Pigtail Catheter: This catheter developed by Judkins has end hole and side holes. The end hole permits insertion of the c

What are d-glucose and d-galactose, D-glucose differs from D-galactose onl...

D-glucose differs from D-galactose only in the arrangement around carbon 4. Therefore D-glucose and D-galactose are- Select one: a. enantiomers b. epimers c. mirror ima

Poultry and duck diseases-avian adenovirus infections, Avian adenovirus inf...

Avian adenovirus infections EDS-76, an adenovirus, has been etiologically associated with drop in egg production. Other adenoviruses affecting chicken and other birds include

How does the vegetal stratification of an ecosystem, How does the vegetal s...

How does the vegetal stratification of an ecosystem influence the biological diversity? The vegetal stratification of an ecosystem, as the strata of the Amazon Rainforest, mak

Illustrate the maturation of honey, Q. Illustrate the maturation of honey? ...

Q. Illustrate the maturation of honey? Honey is the oldest sweet food known to man. Although honey is a natural sweetener, it is considered a refined sugar because 96% of dr

Amine and the carboxyl groups, Q. Do the amine and the carboxyl groups atta...

Q. Do the amine and the carboxyl groups attached to central carbons participate in the union between amino acids? Yes. The nitrogen of the amine group of one amino acid binds t

collection of solid waste, There are three methods of collections: 1.  ...

There are three methods of collections: 1.      Kerbside collection: In this collection system the refuse is brought in containers and placed on the footway, from where it is

Explain the effect of deficiency of copper in human, Explain the effect of ...

Explain the effect of Deficiency of Copper in Human? Owing to the remarkable homeostatic mechanisms, copper deficiency in humans is rare. However, copper deficiency has been re

Describe directly and indirectly modes of transcription , 1.  A completely ...

1.  A completely new protein has been synthesized by a research lab. You are inadvertently exposed to it and have an allergic response. What type of antibody initiates this respons

What is counsellor, Q. What is Counsellor? Counsellor is someone who gi...

Q. What is Counsellor? Counsellor is someone who gives advice about the problem. A counselor's role is to help patients help themselves. In our context  a counsellor is  a comm

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