Bio Flipbook : Molecules of Life & Cell Structure and FunctionName : Matrics num : Practicum : Lecturer name:Auni batrisyia binti osman MS2513171255 H1T4A Mdm.Tamilarasi A/P Rajaram Set E
State the main types of molecules of lifeWater Carbohydrates proteins lipidsDNA & RNA
Compare and contrast between DNA & RNA moleculesPentose sugar in DNA is deoxyribose while pentose sugar in RNA is ribose In DNA, the ration of A to T & G to C is one while in RNA, the ratio of A to U and G to C varies DNA is double stranded while RNA is single stranded Nitrogenous base in DNA are Adenine, Thymine, Cytosine, Guamine while Nitrogeneous base in RNA is Adenine, Uracil, Cytosine, Guamine DNA is relatively a larger molecule while RNA is relatively a smaller molecule DNA is more stable/permanent while RNA less stable/non-permanent Both are made up of monomers called nucleotides Both are nucleic acid/polynucleotide Nucleotides are linked together by phosphodiester bond Nucleotide consist of a pentose sugar, phosphate gorup and nitrogeneous base DNA is found in nucleus while RNA is found in nucleus and cytoplasmSIMILARITIESSIMILARITIESDIFFERENCEDIFFERENCE
Prokaryotic DNA is not associated with histone proteins, whereas eukaryotes DNA is associated with histone proteinsBoth prokaryotic and eukaryotes cells contain DNA molecules. Differentiate the DNA in prokaryotic and eukaryotes cells?01.Prokaryotic DNA is circular, whereas Eukaryotic DNA is linear. Prokaryotic DNA is located in the nucleoid and is not bounded by a nuclear envelope, whereas eukaryotic DNA is bounded by nuclear envelope02.Prokaryotic cells usually have one chromosome, whereas eukaryotes cells have multiple chromosome. Prokaryotic DNA has smaller genome size while eukaryotes DNA has larger genome size03.
A scientist is trying to determine theA scientist is trying to determine the percentage of Cytosine in a certainpercentage of Cytosine in a certain human DNA molecule. Explain howhuman DNA molecule. Explain how to calculateto calculate the percentage ofthe percentage of Cytosine if the DNA moleculeCytosine if the DNA molecule contains 26%contains 26% ThymineThymine A scientist is trying to determine the percentage of Cytosine in a certain human DNA molecule. Explain how to calculate the percentage of Cytosine if the DNA molecule contains 26% ThymineIn DNA, amount of Adenine = amount of Thymine. While amount of Guanine = amount of Cytosine. Therefore, Adenine + Thymine = 26% + 26% = 52%. The remaining percentage is Guanine + Cytosine = 100% - 52% = 48%. Since Guanine = Cytosine, the percentage of cytosine is 48% ÷2 = 24%.
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