AMOEBIASIS-PROTOZOA

Amoebiasis,also known as amoebic dysentery,is caused by Entamoeba histolytica. Its trophozites, that penetrate the wall of the intestine secrete histolytic enzymes and feed upon its cells causing the formation of ulcers. The trophozoites under certain cirumstances reach the liver and brain also causes abscess formations.Transmissions of the parasites from man to man takes place through tetranucleate cysts.The trophozoites changes into a smaller minuta cyst.Amoebic dysenteries is endemic in warm countries.These cysts are foivoided with the faecal matter and contaminate food and water and spread into new hosts.

BEE COLONY-APIS

Three kinds of individuals or castes 1>WORKERS-Which are strile females.
2>drones-Which are fertile males.
3>Queen-Which are fertilefemales.

The workers have job of producing the royal jelly, building the bee hives, caring the larvae and disposing of the debris and dead bees. The drone and queen are used for reproductive purposes.The average sized colony conists of one queen, about 100 drones and 60,000 workers.

MOUTHPARTS-APIS

The mouthparts of honey bee are of chewing and lapping type.The labrum lies below the clypeus and the mandibles are situated on either side of the labrum. The labrum are used for moulding the wax and manipulating the pollen.The glossae of the second maxillae or labium form a tongue-like process or ligula with a spoon like depressions at its tip called the labellum or honey spoon. It constitutes a tube or proboscis for sucking up the nectar.The labial palps are well developed and they help to make the ligula. The apparatus is protected by the long galeae of the first maxillae.

VORTICELLA-HABITS AND HABITAT

VORTICELLA is a type of ciliate almost bell-shaped or campanulate with free anterior end surrounded by cilia.It is solitary and stalked ciliate often found in freshwater ponds,lakes rivers .There are 200 species all of which solitary.They occur in large groups but are never colonial. They can live only in uncontaminated waters where bacterial growth does not become too great.Some species are marine,or epizoic and are few parasitic.V.microstoma is the one which is more frequently seen in laboratory infusions.
SHAPE AND SIZE-It is bell-shaped asymmetrical body.The long contractile stalk. Both the body and the stalk are capable of great individual variations in size and form. The body of smaller V.microstoma measures 55 mew to 35mew. The largest species V.campanula in size with the lenght of 53 to 4150 mew.

RESPIRATION-PHERETIMA

Respiration takes place by the diffusion of gases through the body surface.The gaseous exchance i,e intake of oxygen and giving out of carbondioxide takes place between the blood capillaries of the outer epidermis and the surface film of moistures contributed by secreated mucus excreated wastes and coelomic fluid.Haemoglobin dissolved in the plasma of blood acts as a respiratory pigments transporting oxygen to the body tissues.

TYPES OF RESPIRATIONS

Two type of respirations-AEROBIC AND ANAEROBIC.
ANAEROBIC RESPIRATIONS-It works in the absent of oxygen.e.g tapeworm living inside the human intestines.It occur inside our own body i the fast-working skeletal muscles temporarily. During physical exercise like running,walking for long distance ,wrestling,weight-lifting,etc our muscles work too fast but not getting enough oxygen. In this situations the muscles are working in the absence of oxygen to provide extra energy. The product of anaerobic respirations in such  muscles is lactic acid. The lactic acid gives the feeling of fatigue.This conditions is called oxygen-debt.When you rest for some time this lactic acid slowly get oxidised by the oxygen and so debt is cleared.
AEROBIC RESPIRATIONS-It works in the presence of oxygen.
SHIVERING and CLATTERING of teeth-In winter when we feel cool this is emergency activity of the muscles cells to produce extra heat.

THE RESPIRATORY SYSTEM

Respiration is vital process in all living organisms.It gones non-stop through out life.It is process in which the raw materials used ,the end-product used and the amount of energy liberated.So it is process in which the raw material used or the chemical process of releasing energy by breaking down giucose for carrying the life process.There is five points to be rembeber this part of respiration yielding energy occurs inside the living cells and hence it is better known as cellular or tissue respiration.
2>The breakdown of glucose to carbon dioxide and water does not occur in a single steps but in a series of chemical steps.some of the steps occur in cytoplasm and inside the mitochondria.
3>The breakdown of process is envolve the enzyme citrase kinase.
4>ATP release from the adenosine triphosphates first discovered by KARL LOHAMM IN 1929.We get energy in the form heat  in which adp first converted into ATP .It is also called as currency of energy in side the cell. One mole of glucose on complete oxidations yields 28 molecules of ATP.
5>The essensials steps of cellular respirations are same in plants and animals.
WHY WE NEED ENERGY-We need energy for a vast variety of activities in them.Some of these are:
1>Synthesis of protein from aminoacids.
2>productions of enzymes.
3>contractions of muscles for movements.
4>conductions of electricals impulse in a nerve cell.
5>By cell divisions formations of new cells.
6>For keeping the body warm i,e warm-bloded animals e,g birds and mammals.