Mrs.+Kretschmer's+Chemistry+of+Life+Practice+Questions

Chemistry of Life 20 Questions

1. ** Carbon, Hydrogen and Oxygen are all:  ** Molecules  Biological Macromolecules  Atoms  Monomers

2. ** Which part of the atom is capable of bonding? ** Nucleus  Proton  Neutron  Electron

3. ** Carbon can bond four times. What types of molecules can it form? ** Small simple molecules  Large complex molecules

4. ** Monomers link together to form  ** Water  Glucose  Polymers  Carbon dioxide

5. ** Carbohydrates are primarily used for:  ** Enzymes  Membranes  Muscles  Energy

6. ** Proteins are composed of:  ** Monosaccharides  Amino Acids  Fatty Acids  Nucleotides

7. ** Lipids contain  ** Adenine and Guanine  Alanine and Serine Fatty acids and glycerol  Glucose and Lactose

8. ** Nucleic acids include:  ** Cellulose and Starch  Steroids and Hormones  Amylase and Pepsin  DNA and RNA

9. ** Water is a (blank) molecule  ** Polar  Nonpolar  Neutral

10. ** Enzymes are:  ** Protein catalysts  Substrates Chains of glucose molecules  Always denatured

11. ** Which biological macromolecule forms cell membranes? ** Carbohydrates  Proteins  Lipids  Nucleic acids

12. ** Fatty acid chains repel water because they are:  ** Polar  Nonpolar  Neutral

13. ** Cellulose is used to build plant cell walls. Cellulose is a type of:  ** Carbohydrate  Protein  Lipid  Nucleic Acid

14. ** Which molecule carries genetic information? ** Starch  Catalase  Phospholipid  DNA

15. ** Carbohydrates, Proteins, Lipids and Nucleic acids are all:  ** Atoms  Molecules  Biological Macromolecules  Cells

16. ** Which of the following would NOT change the shape of an enzyme's active site? ** Increasing the substrate concentration  Boiling it  Lowering the pH  Raising the pH

17. ** Which atom forms the base of all biological macromolecules? ** Hydrogen  Oxygen  Carbon  Nitrogen

18. ** Facial features, muscles, body shapes, cell sizes are all formed by which biological macromolecule? ** Carbohydrates  Proteins  Lipids  Nucleic Acids

19. ** Water sticks to clothing, towels and other polar surfaces due to the property of:  ** Surface Tension  High Specific Heat  Adhesion  Cohesion