Question

86. What attracts or directs the synthesis enzyme to the template in Translation? a. Start Codon b. 5'-cap c. Primer d. Promoter e. Poly-A Tail

92. Which of the following is the description for Catabolic Reactions? a. the energy of movement b. the breaking down of complex molecules into simpler ones c. energy converted from one form to another d. energy is neither created nor destroyed e. the linking of simple molecules to form complex molecules

93. Which of the following enzymes is NOT involved in DNA replication? a. Primase b. DNA Ligase c. DNA Polymerase d. Helicase e. Phosphatase

94. Hydrophobic interactions bring molecules together based on what? a. incorporation of water b. exclusion of water c. sharing of electrons d. interaction of oppositely charged molecules e. exclusion of oil 99. What is the "key" component that 'moves' when looking at metabolic reactions? a. Energy b. Carbohydrates c. Water d. Lipids e. Monosaccharides

Answer 1

Answer 86. a. Start codon

The start codon in an mRNA (AUG) indicates the start of polypeptide chain during translation.

Answer 92. b. The breakdown of complex molecules into simpler ones.

The molecules broken down by catabolism are either used to release energy by oxidation or synthesise other products.

Answer 93. e. Phosphatase

Primase synthesises short RNA primers at the beginning of replication; DNA ligase joins the okazaki fragments; DNA polymerase elongates the strand being synthesized; Helicase is the unzipping enzyme causing formation of replication fork

Answer 94. b. Exclusion of water

Hydrophobic means 'water-fearing'.

Answer 99. a. Energy

In any reaction, energy is transferred between the reactants and products.