The process through which our body’s immunity increased against a particular pathogen (organism which form the disease) or antigen, is known as immunization. Immunity can be acquired or can be gained by natural process. Immunization is mainly two types-Passive immunization and Active immunization. These are done by many different ways. One of the most successful process …
Microvilli and it’s role in absorption is a very important topic specially for zoology student. Most of the cells have a variety of protrusions or extensions on their surface area which involved in various purpose like phagocytosis, cell movements, and in some specialized functions such as absorption of nutrient materials. Microvilli (singularly microvillus) are one of …
In the cytoplasm of eukaryotic cells (both plant and animal cell) a membrane bound tubular or sac like organism is located near the nucleus is known as Golgi body. The main function of Golgi body is protein sorting. But their are many other function of Golgi-body. Golgi apparatus was discovered by Camillo Golgi (an Italian …
DEFINITION: Parasitism is the relationship between two organism or animals or plants of different species, in which the organism of one species interact with another for its own survival. Sometimes It may be harmful for the host organism which provides nutrients or shelter to the parasitic organism. *PARASITE: The organism which depends on another organism …
Lysosomes are membrane-enclosed organelles found in the cytoplasm of the eukaryotic cells (mainly animal cells) and contain some enzymes, which are capable to break down all types of biological polymers (proteins, nucleic acids carbohydrates and lipids).The main function of lysosome is to secrete digestive enzymes. It is spherical in shape. It contains about 50 different …
Stomach is a J-shaped, hollow, muscular bag, situated after the esophagus of alimentary tract. It is the widest organ of digestive tract and has vital role in digestion. Stomach has four parts: 1. Cardiac part 2. Fundus 3. Body 4. Pyloric part FUNCTION: For its wide, hollow appearance stomach acts as …