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explain the bunsen burnerit is a type of gas burner that gives very hot flame by allowing air to enter at the base and mix with the gas it is used -a
explain the chemical methods for control of microorganismsdifferent chemicals can be used which can act as disinfectant antiseptics or even chemical
define important points while working with autoclavenote following points should be kept in mind while working with autoclave1 autoclave should not
why do few plants adapted to a dry environment open their stomata only at nightthroughout the day in dry habitats the guard cells become the stomata
determine the instruments that are required for sterilizationthe word sterilization is derived from the latin word sterilic meaning unable to produce
do plants placed under an environment drier than the habitat where they are used to living have a reduction or an increase in the time during which
explain microbiological apparatus and equipmentsit provides an orientation to the various basic equipments ie instruments tools glassware and
how plants control the opening and the closing of the stomatathe closing and the opening of the stomata depend upon the necessity of the plant to
what are the elements that constitute the stomatathe stomata is made of a central opening the ostiole or slit delimited by two guard cells
what are the stomata how these structures participate in the plant transpirationthe stomata singular stoma are small specialized passages for gases
what is the plant transpiration what are the two major types of plant transpiration process which of them is more important in volumethe plant
what are the major gas exchange organs of the plants how is the procedure accomplishedin covering of the leaves and of the primary structure of the
explain the numerical aperturenumerical aperture is a characteristic of each lens and is printed on the lens it can be defined as a function of the
why plants need to do exchange gases with the environmentthe plants need to do gas exchange because they create aerobic cellular respiration like
why roots of many swamp plants have a special morphologythe swamp and the marsh plants in general present supporting roots that ramify from portions
what are the secondary roots in origin how the secondary roots differentiate from shootsthe secondary roots are ramifications of the primary major
what is root caproot cap is a protective structure located in the tip of the growing root it defends the meristematic tissue of the root forming a
explain the principle of microscopywhen the light passes from one medium to another refraction occurs ie the ray is bent at the interface the
which are plant tissues that form the plant rootsroots have a central portion called medulla made of vascular tissue outer phloem and inner xylem
what is leaf cuticleleaf cuticle is a thin waxy layer made of waxes and cutin on the outer surface of the leaf epidermis its function is near control
why does bark often break and die naturallybark is the mature periderm of the branches stem and roots it breaks and dies when these structures grow
explain the precautions for use of light microscope1 clean the lens system properly2 use xylol only when necessary3 never lower the body tube while
what are plant root hairs where can they found and what is their functionthe root hairs that are external elongated projections of the root epidermis
explain procedure for the use of light microscopenow carry out the exercise following the steps enumerated herewith1 place the microscopic slide with
which kind of plant tissue is corkthe cork is the material for instance used to cap wine bottles and is extracted from the suber of a special oak