CHAPTER 1 Biomolecules and Energy 17 3. Carbohydrates: (a) are formed from C, H,
ID: 200679 • Letter: C
Question
CHAPTER 1 Biomolecules and Energy 17 3. Carbohydrates: (a) are formed from C, H, O, and N. (b) would leave a carbon atom if atoms forming water were removed (c) form readily accessible storage in the form of starch and glycogen. (d) include sugars. (e) c and d are correct. (f) b, c, and d are correct. 4. Proteins: (a) are composed of amino acids. (b) are energy storage molecules. (c) are structure molecules. (d) orchestrate the chemical reactions of the cell. (e all are correct. (f) a, b, and c are correct. (g) a, c, and d are correct. 5. Peptide bonds: (a) are found in all biomolecules. (b) involve a link between a carbon and a nitrogen atom. (c) are ionic bonds. (d) result in a hydrophobic molecule. 6. Nucleic acids: (a) include organic bases. (b) include phosphorylated sugars. (c) are found in the nucleus. (d) contain the information structure of the cell. (e) all are correct. (0) a, c, and d are correct.Explanation / Answer
3. f. , Carboydrates are hydrates of carbon and contains H,C, and O so if we remove H and O only carbon will remain, carbohydrates are stored as starch in plants and as glycogen in animals and carbohydrates include sugars sych as glucose, fructose and succrose.
4. g , proteins are made up of amino acids in different combinations, these make cellular structure of the body and also control the reactions of body as enzymes.
5. B, formed between a carboxyl group and amino group (CO—NH-), and may make hyrophobic or hydrophilic amino acids chains, and peptide bonds are covalent not ionic and peptide bonds are only found in proteins, peptides and amino acids, so option b is the correct answer.
6. E, all are correct, DNA is found in nucelus, has phophorylated sugar backbone has organic bases (A,T,C,G) and also contains information about the cell and organism.
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