Vacuoles, Biology

Assignment Help:

VACUOLES

They are of 4 types -

1.       Sap Vacuole -

Outer membrane of sap vacuole is called Tonoplast. Sap vacuole contains amino sugars, carotenoids, proteins, minerals etc. Matrix of sap vacuole is called Cell Sap. Sap vacuole helps in osmoregulation. Anthocyanine pigment is also present in cell sap, which is responsible for violet, yellow & orange colour.

2.       Contractile Vacuole -

These are present in protists. eg. Amoeba & Paramecium. C.V. helps in water balancing or osmoregulation, also helps in excretion.

3.       Food Vacuole -

These are present in protists. They store ingested food. These are also known as gastric vacuole, because they are analogue to elimentry canal of higher animals.

4.       Gas Vacuole -

These are present in Cyanobacteria or Photosynthetic green / purple bacteria. These are also known as pseudovacuole or air vacuole. Each gas vacuole protects from U.V. rays. Gas vacuole also help in buoyancy or floating. Proteineous membrane is also present around the gas vacuole.


Related Discussions:- Vacuoles

Collagen helix protein structure, Collagen Helix Collagen has a larg...

Collagen Helix Collagen has a large amount of glycine (25%) and proline (and hydroxyproline, 25%). They run parallel, form a right handed super-helix that is stabilized b

Why are most ammoniotelic beings aquatic animals, Q. Why are most ammoniote...

Q. Why are most ammoniotelic beings aquatic animals? Aquatic animals like crustaceans, amphibian larvae and bony fishes generally are ammoniotelic since ammonia diffuses more e

Can you define musculoskeletal system, Q. Which are the organs that are par...

Q. Which are the organs that are part of the musculoskeletal system? The key tissues and organs that are part of the musculoskeletal system in humans are the cartilages, the mu

What are the results of pulmonary artery banding, What are the Results of p...

What are the Results of pulmonary artery banding ? Results of surgery for ventricular septa1 defects are excellent. Though the mortality is not 0 per cent, in a large series it

Prevention and community action - psychoactive substance, Prevention and Co...

Prevention and Community Action: A number of  preventive action are necessary. Alcohol prevention programmes can have major effects on alcohol problem rates, and can influence

Plant responses to light-dark cycles, Plant Responses to Light-Dark Cycles ...

Plant Responses to Light-Dark Cycles Based on their requirement for day length (number of hours of light) for flowering plants have been grouped under three major categories,

Define precautions for testing quality of water, Define Precautions for Tes...

Define Precautions for Testing Quality of Water? 1. Handle the sewage water with care as it may contain enteric pathogens. 2. Sewage and pond water should be shaked before i

Assets and capital stock accounts, Q. Assets and capital stock accounts? ...

Q. Assets and capital stock accounts? At the present extend the liabilities, assets and capital stock accounts in the Adjusted Trial Balance columns to the Balance Sheet column

Study giude, how many atoms are H2SO4 compound

how many atoms are H2SO4 compound

Tetrasaccharides, TETRASACCHARIDES The oligosaccharides are formed b...

TETRASACCHARIDES The oligosaccharides are formed by condensation of four monosaccharides. T rachyos e is a nonreducing tetrasaccharide found in plants as transport ca

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