BIOL 143 SPRING 2018 sURVEY OF LIFE SCIENCE Name. Molecule of Life 1 Define orga
ID: 219628 • Letter: B
Question
BIOL 143 SPRING 2018 sURVEY OF LIFE SCIENCE Name. Molecule of Life 1 Define organic compound. 2. Chemical groups (i.e. hydroxyl, carboxyl, amino, etc.) contribute to the shape and molecular function of organic molecules. Explain the importance of functional groups (an important chemical group). 3. Which functional group is not soluble in water? 4. Which functional group serves as a recognizable tag on biological molecules? 5. Explain the biological function of ATP 6. Distinguish between the terms monomer and polymer 7. Distinguish between dehydration synthesis and hydrolysisExplanation / Answer
1)organic compounds are large group of chemical compounds in which one or more carbon atoms are linked to each other and to other elements by means of covalent cond
2)importance of functional groups:
3)hydrocarbons are hydrophobic and are hence insoluble in water
other functional groups which are larger in size are insoluble in water. but smaller sized molecules of functional groups are more or less soluble in water
4)methyl group
it is a recognizable tag on DNA molecule and helps in alteration of gene expression
5)biological function of ATP:
it is the main source of energy for cellular respiration
hence it is also called energy currency of the cell
6)polymer means many molecules, it is a large sized macromolecule which contains many monomers eg:polyester, proteins, carbohydrates etc
monomer means a single molecule which forms long chains of polymer eg: amino acids, glucose molecule etc
7)dehydration synthesis is a process of joining two molecules by removing water molecule
hydrolysis is breaking down of a macromolecule into simpler substances with addition of water molecule eg: digestion of food where disaccharides are broken down into monosaccharides by adding water molecule eg:when two amino acids join to form a peptide molecule with removal of water molecule
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