Briefly explain lichens organism, Biology

Assignment Help:

Briefly explain Lichens organism?

Lichens are unique organisms consisting of a symbiotic relationship between a fungus and a photosynthetic organism. They represent a type of symbiotic relationship known as mutualism, whereby both partners in the relationship benefit from living together, without adversely affecting each other. The fungus is usually an ascomycete, and the photosynthetic partner is often a blue-green alga or a green alga.

Lichens are able to grow in harsh conditions, and therefore are often "pioneers," the first to inhabit newly formed substrate. They can be found on bare rocks in cold and drought conditions. The fungal partner provides the algal partner with a tough substrate that collects water and minerals from the atmosphere while the algal partners contribute their photosynthetic products to the fungus. Lichens, therefore are also very sensitive to air pollution, and can be used as convenient indicators of air quality.

 


Related Discussions:- Briefly explain lichens organism

Explain fliylurn basidiomycetes, Fliylurn Basidiomycetes 1) The asexual...

Fliylurn Basidiomycetes 1) The asexual reproduction is by means of basidiospores which are produced on a microscopic, club-shaped basidium. 2) The basidia are found in a fru

Draw a diagram of transverse section of the spinal cord, Draw a diagram of ...

Draw a diagram of transverse section of the spinal cord showing reflex are and label the following parts: (i) Afferent nerve fibre (ii) Grey matter (iii) Motor nerve fibre

Tertiary structure of protein, T ertiary Structure (3 o S tructure) ...

T ertiary Structure (3 o S tructure) Highly folded protein. Globular in structure. Tertiary structure is stabilised by five types of bonds : (i )      P

Set up of phototherapy unit, Set Up of Phototherapy Unit Phototherapy ...

Set Up of Phototherapy Unit Phototherapy generally consists of four to eight cool white, day bright, or special blue fluroescent tube lights covered by a plastic shield and p

What is the emperical evaluation, What is the Emperical evaluation Emp...

What is the Emperical evaluation Emperical evaluation based on: i) Time elapsed since stage one surgery - Considering the sigma cycle of bone formation in humans, a time pe

What is interpretation of stress echocardiography, Q. What is Interpretatio...

Q. What is Interpretation of Stress Echocardiography? The standard approach to interpretation is qualitative. The attendant need for training and problems posed for reproducibi

Acute bronchitis, Acute Bronchitis: Acute bronchitis is inflammation  ...

Acute Bronchitis: Acute bronchitis is inflammation  of one or more bronchi  and occurs specifically  in children younger than  four year?.  It is usually associated with previ

Define technique of paper chromatography, Define Technique of Paper chromat...

Define Technique of Paper chromatography? Paper chromatography is used as 1. Ascending, 2. Descending or 3. Horizontal technique (circular paper chromatography) It is De

What are the basic constituents of the cell membrane, The cell membrane is ...

The cell membrane is produced of lipids, proteins and carbohydrates. The membrane lipids are phospholipids, a particular type of lipid to which one extremity a phosphate group i

Patterns of metamorphosis, Patterns of Metamorphosis The pattern of me...

Patterns of Metamorphosis The pattern of metamorphosis is not the same in all insects and so metamorphosis can be broadly classified into 3 types: (1) Complete metamorphosi

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