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What is a pH meter?
A pH meter is a device used for measuring. pH of any unknown solution. It is composed of:
a) A reference electrode
b) Glass electrode whose potential depends on the pH of the solution surrounding it
c) An electrometer, a device capable of measuring very small potential difference in a circuit of extremely high resistance.
What is scientific investigation?
Q. Explain Degradation of Fats? Fats are the esters of glycerol and fatty acids and are called as 'glycerides'. Fats are susceptable to hydrolysis, oxidation and other che
Drawbacks of Lamellar model This model does not explain the elasticity of PM. Although this model says that PM is elastic but it also states that head of lipid molecules is
LAMELLA R MODELS According to James Danielly & Hugh Davson (1935) cell membrane consists of 4 layers P-L-L-P. Molecules of phospholipid has amphipathic nature, i.e. it
Is the transpiration the only way through which leaves lose water? The Plants don't only lose water as vapor as by transpiration. Leaves also lose liquid water by a phenomenon
How will the urine concentration be affected if the henle''s loop of a person is removed and his PCT is joined directly with DCT?
Enzyme Activity Enzymes are biomolecules which catalyze (i.e. increase the rates of) chemical reactions. Almost all enzymes are proteins. In enzymatic reactions, the molecules
Transport with the Help of Membrane Protein Even though, the lipid bilayers do not permit the entry of polar molecules such as ions, sugars, amino acids, nucleotides and cell
What is the autotrophic hypothesis on the origin of life? An autotrophic hypothesis on the origin of life asserts that the first living beings on earth were producers of their
Q. How does the heart impel the blood? The heart is a muscular organ that contains chambers right ventricle and right atrium right ventricle and and left atrium through which b
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