Chemical Level of Organization

A solution with a pH value less than 7 is:

• Acidic

• Alkaline

• Basic

• Concentrated

• Neutral

Which is the function of ATP?

• Produces electrical impulses

• Stores information for protein synthesis

• Transfers energy for cell functions

• Transfers information for protein synthesis

• Transport fluids

The micromolecules which are the building blocks of proteins are referred as:

• Amino acids

• Chemicals

• Glucose

• Ions

This is the name given to a negatively-charged atom.

• Anion

• Catalyst

• Cation

• Isotope

• Superoxide

The number of protons in an atom is represented by an element's:

• Atomic mass

• Atomic number

• Mass number

• Valence number

• None of these choices

When ions give up one or two electrons, it becomes positive. Other ions then accept these electrons and become anions.

• First statement is correct. Second statement is wrong.

• First statement is wrong. Second statement is correct.

• Both statements are correct.

• Both statements are wrong.

Frying an egg causes the clear rung part of the egg to turn to white. This process is called:

• Decomposition

• Denaturation

• Emulsification

• Hydrogenation

• Hydrolysis

Which of the following carbohydrates is a polysaccharide?

• Galactose

• Glycogen

• Lactose

• Maltose

• Ribose

Which are the four major elements found in the chemicals that comprise the human body?

• Carbon, hydrogen, oxygen, and nitrogen

• Hydrogen, carbon, phosphorus, and calcium

• Nitrogen, oxygen, calcium, and sodium

• Oxygen, nitrogen, potassium, and calcium

• Potassium, phosphorus, sodium, and hydrogen

In terms of percentage of body mass, what is the most abundant chemical element in the body?

• Calcium

• Carbon

• Hydrogen

• Oxygen