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

Cholesterol question, If an infant had a cholesterol level of 800 you may s...

If an infant had a cholesterol level of 800 you may suspect (blank)? How could this happen?d

Oligochaetes - feeding and digestion in annelids, Oligochaetes - Feeding an...

Oligochaetes - Feeding and Digestion in Annelids In between annelids, the oligochaetes which comprise mostly earthworms, feed on dead, decomposing organic vegetation. They as

Disorders of thyroid function, Disorders of Thyroid Function: The diso...

Disorders of Thyroid Function: The disorders of thyroid function may  lead to following problems:  Juvenile Hypothyroidism Hypothyroidism is one of the most common end

Dissimmilarity between an ecosystem and a biome, What is the difference bet...

What is the difference between an ecosystem and a biome?

Target organ damage, Central Nervous System   Hypertension is one of th...

Central Nervous System   Hypertension is one of the leading causes of cerebrovascular disease. It has been associated with accelerated age related cognitive decline. The most d

Elaboration of yolk- reproduction, Normal 0 false false fal...

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

Explain activators, Activators Activity  of many  enzymes is  influence...

Activators Activity  of many  enzymes is  influenced by  certain ions called as activators. Large number of enzymes such as hexokinase that require ATF are also in need of diva

Build a complete evolutionary branch of vertebrates, Q. What are the six cr...

Q. What are the six criteria used to build a complete evolutionary branch of vertebrates? Dichotomy in each of the six following criteria builds the vertebrate evolutionary bra

Explain about the forces acting on a gravity retaining wall, Explain about ...

Explain about the forces acting on a gravity retaining wall. Forces Acting on a Gravity Retaining Wall: In a general way the forces that act on a gravity retaining wall. The

Define carbohydrate metabolism of manganese, Define Carbohydrate Metabolism...

Define Carbohydrate Metabolism of manganese? Mn is required for carbohydrate metabolism. Enzymes pyruvate carboxylase and phosphoenol pyruvate carboxy kinase involved in glucon

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