Bone marrow transplantation
Bone marrow is the soft, fatty tissue inside our bones which consists of stem cells that produce different blood cells. A procedure in which bone […]
Month: August 2018
Differences between Mitosis and Meiosis
S.N. Mitosis Meiosis 1. It occurs in all kinds of cells (generally somatic cells) and may continue throughout the life. It occurs only in special […]
Differences between Active Transport and Passive Transport (Diffusion)
S.N. Active Transport Passive Transport (Diffusion) 1. The materials move through a bio-membrane against the concentration gradient or electrochemical gradient. The materials move across a […]
Salivary glands (Structure, types and functions)
Salivary glands secrete saliva into the oral cavity. Saliva is a watery, tasteless mixture of secretions from the salivary glands and the oral mucous glands. […]
Antigen and its types
A protein or carbohydrate that evokes our immune system and initiates the immune response is called an immunogen. Immunogens are associated with an infectious agent […]
Forces in action
Force is any interaction that changes or tends to change the state of rest or of uniform motion or the shape and size of a […]
Sexual reproduction in animals
Sexual reproduction occurs in both unicellular and multicellular organisms which involves two individuals (male and female) but of the same species. The offsprings thus produced […]
Differences between active and passive immunity
S.N. Active immunity Passive immunity 1. Host itself produces antibodies to provide immunity. The antibodies produced in other hosts in passively received by the host. […]
Primary and secondary immune response
When an antigen is introduced for the first time in a host, it activates T and B cells. Activation of B- cells produces memory cells […]
Differences between primary and secondary cell wall in plants
S.N. Primary cell wall Secondary cell wall 1. It is formed in a growing cell. It is formed in a mature cell. 2. It lies […]