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studying the main parts of a flowerstudy specimens of large easy flowers such as tulips or lilies count the stamens and observe how they are arranged
granulocyte macrophage colony stimulating factor gm-csf stem cells obtained from the bone marrow are capable of giving rise to countable colonies of
role of antibody mediated immune systemthe amls defends the body against free viruses bacteria with polysaccharide capsules and toxins that enter the
antibody mediated immune system amisin antibody-mediated immunity the antibodies dissolved in blood lymph and other body fluids bi nd the antigen and
air can enter a plant through the leafprocure a leaf with a long stalk to it and seal it into a hole through a cork fit this with a side tube and
working of specific acquired immunityprimary lymphoid organs as you already know are thymus and bone marrow secondary organs are lymph nodes spleen
green leaves make food for plantsheat some alcohol in a jar over boiling water unless it boils break various green leaves from a geranium or other
specific acquired immunitybody in the long run develops specific immune mechanisms for each species these mechanisms are not innate but are acquired
the structure of leavesborrow a microscope from another school a doctor or a hospital study the under- side of leaves and locate the breathing pores
leaves give off water vapouruse two same pots of soil one with a small plant and the other without cover the soil in every pot with cardboard as
what is radioactivityradioactivity the process of spontaneous disintegration of the nuclei of heavy elements with the emission of certain radiations
define contribution of eosinophilsthey are specifically equipped to deal with a lot of parasites all helminth worms the coating of helminthes and
define natural killer cells nk cellsthey are large sized lymphocytes specifically equipped to kill virally infected cells some of the virally
growing leaves in the classrooma sweet potato will make dense foliage in the classroom if it is placed in water set the potato root end down in a
studying leaf arrangementsobserve as many growing plants as possible by looking down on them from above draw sketches of the dissimilar patterns of
carbon paper leaf printscover the vein side of a leaf with a very thin layer of lard or vaseline place the greased leaf vein side up on various
define interferons - humoral mechanismsinterferons are soluble proteins secreted naturally when cells become infected by foreign bodies infected
explain acute phase proteinsfollowing any infection there is a rise in concentration of several plasma proteins the best known amongst them are c-
a carbon steel plate thermal conductivity 45 wmoc 600 x 900 x 25 mm2 is maintained at 310oc air at 15oc bellows over the hot plateif convection heat
how complement system helps to handle microbial invasion1 some components of a complement system coat microorganisms these organisms with such a
ink prints of leavesplace a small quantity of printers ink on a sheet of glass or a tile roll the ink into a thin yet layer with a rubber roller
explain the complement systemto remove a microorganism by phagocytosis requires phagocytes at the right place in the right time the organism should
making smoke prints of leavessmoke prints of leaves may be simply made by following the four steps shown in the diagrams cover the side of a smooth
explain the mechanism of phagocytosisin phagocytosis the organism is entrapped into vacuoles known as phagosome the cytoplasmic granules organelles
an army plane wants to drop supplies to a group of physics students stranded on an island in order for the package to land on the island the pilot