Explain the kingdom fungi organisms, Biology

Assignment Help:

Explain the Kingdom Fungi organisms?

Kingdom Fungi consists of mostly eukaryotic, multicellular, non-photosynthetic organisms that derive their nutrients by absorption. Fungi are grouped separately from the other Kingdoms mainly because of their unique mode of nutrition. Not too long ago the fungi were grouped within Kingdom Plantae, since the cells of fungi are filamentous and have cell walls. Scientists now believe that the differences between fungi and plants are significant enough to merit placing them in their own kingdom. Fungi lack chlorophyl, and instead, secrete enzymes to dissolve food into smaller molecules, which can then be absorbed. This is known as a saprophytic life style. As such, fungi make up a large part of the decomposers in a food web.

The cell walls of fungi are not made of the same material contained within plant cell walls. Plant cell walls are composed of cellulose, while fungal cell walls are made of chitin, the material that makes up the shells of Arthropods. The vegetative body structure of a fungus consists usually of filaments called hyphae that grow through wood, penetrate the ground, or grow within the tissues of a host. These filamentous hyphae are sometimes walled off into cells by cross walls called septa. A mass of hyphae is referred to as a mycelium.

Many fungi reproduce sexually as well as asexually. Sexual reproduction in fungi occurs when two nuclei from two distinct mating strains fuse. In some fungi, the nuclei do not fuse right away but form pairs, making the hyphae dikaryotic, having two genetically different nuclei. Eventually the two nuclei will fuse and form (1N) spores through meiotic division. Asexual reproduction among fungi takes place through the production of spores formed from sporangia, or conidiospores formed from conidia.

The Fungi are divided into 3 Divisions:

Zygomycota - form characteristic zygospores, and include the bread molds

Ascomycota - form characteristic sac-like reproductive structures called asci, and include truffles, yeasts, morels, and molds

Basidiomycota - form characteristic basidia, which are club-shaped reproductive structures, and include mushrooms, toadstools, puffballs, bracket fungi, rusts, and smuts

We will examine Zygomycota (molds) and lichens, special organisms made of both a fungus and a plant, in greater detail.


Related Discussions:- Explain the kingdom fungi organisms

The principle of dna cloning, Assume an experimental target that is to make...

Assume an experimental target that is to make vast amounts of a particular DNA fragment in pure form from a combination of DNA fragments.  Whereas the DNA fragments can be introduc

Explain ribosomes in eukaryotic and in prokaryotic cells, How different are...

How different are the location of ribosomes in eukaryotic and in prokaryotic cells? In prokaryotes ribosomes are create free in cytoplasm. In eukaryotic cells they can also be

Explain the natural history of coronary artery diseases, Explain the NATURA...

Explain the NATURAL HISTORY OF CORONARY ARTERY DISEASES (GAD)? The natural history of CAD is very important from the preventive point or view. Though the usual manifestations o

Name the process in that substances carry across membrane, Substances which...

Substances which are insoluble in a membrane are carried across membrane with concentration gradient by means of a carrier molecule in a process termed as: a) Diffusion. b)

What is the microflake - t dehydration, What is the Microflake - T Dehydrat...

What is the Microflake - T Dehydration? This technique involves the drying of a continuous sheet of foam 20 mm thick on a continuous stainless steel belt. The later is heated f

Descriptions of the genera, Q. Descriptions of the genera? A manual is ...

Q. Descriptions of the genera? A manual is a book that contains information on the area of coverage and keys and descriptions of the families, genera and species including the

Explain difference between sonication and homozinization, Homogenization is...

Homogenization is intensive blending of mutually related substances or groups of mutually related substances to form a constant of diverse insoluble phases (sometimes withaddition

Describe protein glycosylation, Protein Glycosylation is the reaction in th...

Protein Glycosylation is the reaction in that a carbohydrate, example for a glycosyl donor that is attached to a hydroxyl or other functional set of another molecule a glycosyl acc

A decrease in parasympathetic discharge to the heart, A decrease in parasym...

A decrease in parasympathetic discharge to the heart leads to A. a decrease in the conductance of F-channels in SA node cells. B. an increase in the conductance of potassium

A protein is normally found inside of a lipid bilayer, A protein is normall...

A protein is normally found completely within the inside of a lipid bilayer. The protein likely has: a) Mostly hydrophobic side chains, pointed outwards, with the peptide backbo

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