Question No.1  (1) A positive Tollen’s test classifies a monosaccharide as a reducing sugar. (2) The bond which links the two monosaccharides of a disaccharide together is a peptide bond. (3) Monosaccharides cannot be broken done into simpler units by hydrolysis reactions. Which of the following statements are true?  Question No. 2 : Assuming that a strand of DNA has the following sequence: 5'-AACCGGTT-3' What is the sequence of complementary strand of DNA, from the 5' to the 3' direction?

Q: QUESTION 9 Prosthetic groups in the class of conjugated proteins known as glycoprotein are composed…

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Q: Question 10 The proteins and other substances that bind to the DNA rely mostly on non-covalent…

A: A substance that is mainly made up of carbon, hydrogen, oxygen, nitrogen, sulfur, and phosphorus…

Q: (A) Circle the nitrogenous base in this structure. (B) Identify the baseand write it below. (C)…

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Q: QUESTION 19 Which of the following is not found in DNA? O a. Adenine O b. Uracil O c. Guanine O d.…

A: Introduction:- The hereditary substance in humans and almost all other animals is DNA, or…

Q: QUESTION 6 Disulfide bonds stabilize structures of proteins Tertiary and Quaternary primary…

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Q: QUESTION 14 The pks of histidine for a-carboxylate =1.8, for a-amino =9.33; and for imidazole (side…

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Q: QUESTION 31 Match the type of bond with the role below: phosphodiester a. joins adjacent nucleotides…

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Q: The building blocks of the DNA molecule are known as purines amino acids nucleotides polysaccharides…

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Q: Question 2. Ribosomes are cellular structures that are composed of protein and RNA; this structure…

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Q: The Watson-Crick double helix is: O a. a. primary structure O b. tertiary structure O c. quaternary…

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Q: Which statement best explains why alcohols have a higher boiling point than Alcohols have weaker…

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Q: QUESTION 29 In samples of DNA, isolated from two unidentified species of bacteria X and Y, adenine…

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Q: QUESTION 13 Titration of amino acids by a strong base, for example NaOH, results in two pks. The…

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Q: Question #28 Polysaccharides are different from polypeptideș in which of these Ways? A)…

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Nitrogen metabolism

Nitrogen metabolism is the synthesis, utilization or uptake, breakdown, and excretion of nitrogenous compounds in the body. The nitrogen metabolism encompasses nitrogen fixation, biosynthesis, and the breakdown of amino acids, purines, and pyrimidine. Since nitrogen-containing compounds are required for various life processes, nitrogen is an important element of life.