Chemistry of Life Test

Name: ______Date: ______Period: ____

Chemistry of Life Test Review Sheet

Multiple Choice – circle the answer and write the letter in the space provided.

1) The space surrounding the nucleus of an atom contains

2) The three particles that make up an atom are

3) Isotopes are atoms of the same element with the same number of protons and a different number of

4) What makes up a molecule of water (H2O)?

5) When salt is dissolved in water, water is the

6) A substance with a pH of 6 is called a(n)

7) Hydrogen ions, H+, react with hydroxide ions, OH- to form

8) A solution is a(an)

9) When salt is dissolved in water, salt is the

10) A substance that speeds up the rate of a chemical reaction is called a(an)

11) All organic compounds contain the element

12) Which are the four organic macromolecules?

13) An enzyme is a ______, made up of amino acids.

14) The place on the enzymes that bind to substrates is known as the . 15) Suspensions are mixtures

16) The two types of nucleic acids are

17) Examples of lipids are

18) What is the process that changes one set of chemicals into another set of chemicals?

19) Solutions that contain concentrations of H+ ions lower than pure water are called

20) What are the four functions of proteins? a. ______b. ______c. ______d. ______

21) DNA stores

22) The most abundant compound in most living things is

23) When hydrogen and oxygen combine to form water, water would be the

24) What conditions affects the function of enzymes?

25) When an enzyme-catalyzed reaction occurs, what leaves the chemical reaction changed?

Complete this chart with these terms:

Monomers Amino acids Monosaccharides

Macromolecules Lipids Nucleic acids Essays – write in complete sentences!

1) What is the difference between adhesion and cohesion? Include terms capillary action, surface tension, similar molecules, and different molecules.

______From the Acids & Bases Lab, answer the following questions: 1) What was the independent variable? 2) What was the dependent variable? 3) What did the indicator dyes in the litmus papers and pH paper react to?

______