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the bacteria that cause dental cavities in humans break down sugars releasing what chemical which causes tooth destructiona acidsb basesc enzymesd
name of the ductless glands that secrete their product into the circulatory system area exocrine pron ek-seh-krenb apocrine pron ap-eh-krenc
in a plasma membrane which of the below provides a general barrier to the movement of moleculesa lipidsb proteinsc carbohydratesd all of theseanswer
true or false the law of entropy says that all energy is ultimately derived from the
which of the below are skin receptors in humans which are sensitive to heat are theya end organs of krauseb meissners corpusclesc end organs of
hormones are composed from several classes of molecules as far as our present knowledge extends hormones are not found in which of the subsequent
if a color blind man marries a woman pure for normal color vision its probable that one of the below situations may result is it possible thata all
for convenience living things are placed into different groups taxonomic breakdown of living things comprises the following categoriesfamily class
which of the below determines the major difference between bryophytes pron bry-oh-fites and tracheophytes pron tray-key-o-fitesa tracheophytes can
describe the term - near-far problemsignals closer to the receiver are received with less attenuation than signals farther away given the lack of
what is self-jammingunless all of the mobile client are perfectly synchronized the arriving transmissions from multiple clients will not be perfectly
determine the uses of iron - soiliron is a constituent of cytochromes haem and non-haem enzymes it is also essential for chlorophyll formation though
how boron affect the the synthesis of proteinsinadequate availability of boron tends to increase the loss of phosphorus from plant roots and also
describe in brief about the boron - micronutrients boron is required in extremely small amounts in the range of 001 to 10 ppm the actual
what are the micronutrients all the micronutrients except molybdenum boron and chlorine are available more in acid soils these elements may limit
describe the advantages of sulphursulphur also increases the oil content of crops such as flax and soyabeans disulphide linkages -s-s- have recently
define the term - sulphur sulphur is found in small amounts in soil perhaps 015 only a large part of sulphur used by plants comes from
describe in detail about the chlorophyll moleculeeach chlorophyll molecule contains magnesium ion there could be no green plants without magnesium as
determine teh term - magnesium magnesium helps in translocation of carbohydrates and regulates the uptake of other nutrients presumably by
how calcium prevents luxury consumption of potassium increasing cak ratio in soil solution depresses the uptake of potassium thus one of the harmful
determine the importance of calcium in soilscalcium in soils is usually abundant except in acid soils which occur in humid areas due to excessive
explain in brief about the term - calcium calcium is absorbed as ca2 ion and is a constituent of cell wall an activator of different plant
define the advatages of potassiumthe gross impact of these effects on crop production is manifested in several ways perhaps the first visible
method for fractionation of subcellular organellesin order to study the composition and the metabolic role of the various subcellular organelles in a
describe in detail about the unicellular eukaryotes animal cel1s and many types of unicellular eukaryotes contain centrioles which are cylindrical in