Instructions

Hydrophobic substances such as vegetable oil are

Select one:

A. nonpolar substances that repel water molecules.

B. nonpolar substances that have an attraction for water molecules.

C. polar substances that repel water molecules.

D. polar substances that have an affinity for water.

Which of the following descriptions would be an example of potential energy?

Select one:

A. the movement of a bicycle coasting down a hill

B. flood water rushing through a breach in a dam

C. a spark emitted by explosion of a firework

D. the chemical bonds in a molecule of sucrose

Which structure is common to plant and animal cells?

Select one:

A. mitochondrion

B. wall made of cellulose

C. chloroplast

D. centriole

During cellular respiration, electrons move through a series of electron acceptor molecules. Which of the following is a true statement about this process?

Select one:

A. The electrons gain energy as they move from one electron acceptor to another.

B. The electrons release large amounts of energy each time they are transferred from one electron acceptor to another.

C. Glucose is eventually reduced by the electrons to form water.

D. Oxygen is eventually reduced by the electrons to form water.

Which of the following statements correctly describes a function of the Golgi apparatus?

Select one:

A. protein modification and sorting

B. detoxification of drugs

C. synthesis of cytoplasmic proteins

D. production of ribosomal subunits

The biochemical reaction that joins two amino acids to form a dipeptide is accompanied by

Select one:

A. the release of a carbon dioxide molecule.

B. the addition of a nitrogen atom.

C. the release of a water molecule.

D. the addition of a water molecule.

What waste product do yeast produce under anaerobic conditions?

Select one:

A. creatine

B. lactic acid

C. ethyl alcohol

D. pyruvic acid

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