Macromolecules and RNA Functions

Which of the following is NOT one of the four main types of macromolecules?

• Vitamins

• Lipids

• Proteins

• Nucleic Acids

What is the primary function of DNA in cells?

• To catalyze chemical reactions

• To transport nutrients

• To store genetic information

• To provide energy

Who proposed the double helix model of DNA?

• Pauling and Chargaff

• Franklin and Wilkins

• Mendel and Darwin

• Watson and Crick

Which nitrogenous base is found in RNA but not in DNA?

• Uracil

• Adenine

• Thymine

• Cytosine

What is the main role of RNA in cells?

• To store energy

• To replicate DNA

• To assist in protein synthesis

• To provide structural support

Who discovered proteins and when?

• Mendel in 1865

• J.J. Berzelius in 1838

• Franklin in 1952

• Watson and Crick in 1953

What type of bond links amino acids together in proteins?

• Peptide bond

• Covalent bond

• Ionic bond

• Hydrogen bond

How many different amino acids are found in nature?

• 40

• 30

• 10

• 20

In the restaurant analogy, what role does RNA play?

• The translator

• The chef

• The recipe book

• The ingredients

What does the number of proteins encoded by a genome correlate with?

• The organism's diet

• The organism's age

• The organism's complexity

• The organism's size