Exam 2: The Chemistry of Biology

During cellular reactions, electrons may be removed from compounds such as glucose and picked up by a coenzyme known as NAD⁺.When NAD⁺ gains these electrons, it is said to be

Elements have predictable chemical properties.

Compared to a solution of pH 9, a solution of pH 7

Compare and contrast the chemical and functional characteristics of DNA and RNA molecules.

Select the incorrect statement.

Which of the following is found in DNA but not in RNA?

An amino acid contains all of the following except

Protons and neutrons make up the atom's central core referred to as its _____.

All of the following are polysaccharides, except

All of the following are correct about triglycerides, except

A covalent bond is formed between an anion and a cation.

A newly synthesized polypeptide will ultimately be located within the phospholipid bilayer of the plasma membrane.When this polypeptide folds to form its tertiary structure, the _____________ amino acid R-groups will most likely be facing outward.

If solution A has a lower pH compared to solution B, then solution A is more acidic than solution B.

Organic chemicals always have a basic framework of the element _____ bonded to other atoms.

The total number of protons and neutrons of an element establishes its _____ number.

Explain what radioisotopes are, and describe how they can be used to monitor the uptake of a specific biochemical by a microbial culture.

Cations are

The electrons of an atom are

During protein synthesis, genes in DNA are copied, making _____ RNA.

C₆H₁₂O₆ + C₆H₁₂O₆ →C₁₂H₂₂O₁₁ + H₂O is an example of