Exam 2: Chemical Principles

Based upon the valence numbers of the elements magnesium (2) and hydrogen (1), predict how many covalent bonds would form between these atoms to achieve the full complement of electrons in their outermost energy shells.

Identify the following reaction: Glucose + Fructose -Sucrose + Water

What do genes consist of?

All chemical reactions are, in theory, reversible.

Which of the following is the type of bond between molecules of water in a beaker of water?

Identify the following reaction: NH₄OH "NH₃ + H₂O

Elements only achieve the full complement of electrons in outermost energy cells by donating or sharing electrons.

The antimicrobial drug imidazole inhibits sterol synthesis. This would most likely interfere with

Which of the following statements regarding protein structure is FALSE?

Most amino acids found in cells demonstrate what type of chirality?

Which type of molecule is composed of (CH₂O) units?

What is the type of bond between carbon, hydrogen, and oxygen atoms in organic molecules?

Which of the following statements about the atom ¹² C is FALSE? 6

Identify the following reaction: Lactose + H₂O -Glucose + Galactose

What is the type of bond between ions in salt?

There are some forms of life on Earth that can survive without water.

Figure 2.5 -Use Figure 2.5 to answer the following. Starch, cellulose, dextran, and glycogen are polysaccharides. How are they similar? To what are their different properties due? Why can't an enzyme that hydrolyzes starch degrade cellulose?

In Figure 2.1, which is an alcohol?

Antacids neutralize acid by the following reaction. Identify the salt in the following equation: Mg(OH)₂ + 2HCl -MgCl₂ + H₂O

Desulfovibrio bacteria can perform the following reaction: S^6- -S^2- . These bacteria are