Quiz

QUIZ

1. What protein structure is specifically determined by the protein’s genetic code?

a. Primary structure b. Secondary structure c. Tertiary structure d. Quaternary structure

2. Which aspect of a protein is considered the smallest molecule?

a. Amino acid b. Oligopeptide c. Polypeptide d. Protein

3. What does DNA traditionally encode for within the cell?

a. Proteins or peptides b. Lipids c. Carbohydrates d. Ether peptides or lipids or carbohydrates

4. About how many genes are there in the human genome?

a. 5000 genes b. 20000 genes c. 100,000 genes d. 1 million genes

5. What is the segment of messenger RNA called that ultimately doesn’t get spliced out of the pre-mRNA molecule and so gets translated into protein?

a. Intron b. Exon c. Transfer RNA d. Spliceosome

6. What is the process of making a polypeptide chain in the ribosomes using messenger RNA and transfer RNA called?

a. Replication b. Transcription c. Translation d. Post-translational modification

7. What do enzymes do in order to facilitate a reaction to occur in biological systems?

a. They lower the free energy level of the substrate b. They lower the free energy level of the end-product c. They change the delta G or total energy level between the substrate and the end-product d. They change the activation energy of the reaction

8. Which energy level is changed during enzymatic reactions?

a. The substrate energy level b. The transition state energy level c. The end-product energy level d. The difference between the substrate energy level and the end-product energy level

9. What is true of the Western blot test for HIV disease?

a. It does not require separation of the antibody b. It is an immunoassay c. It is the first test used for the detection of HIV antibodies d. It is technically easier than the ELISA test

10. In gel electrophoresis, what happens in the separation of proteins in this type of system?

a. Proteins cannot be separated using this technique b. Proteins are separated based on size c. Proteins are separated based on charge d. Proteins are separated based on charge and size