Ap Biology/biochemistry Worksheet (Page 3 of 8) in pdf

Ap Biology/biochemistry Worksheet Page 3

Name _____________________________

AP Biology

9. Which of the following carbon compounds is standardly utilized as an energy source by

heterotrophs?

(90:36 modified)

A. calcium carbonate

B. carbonic acid

C. organic molecules

D. carbon dioxide

E. carbon monoxide

10. Which of the following is responsible for the cohesive property of water?

A. Hydrogen bonds between the oxygen atoms of two adjacent water molecules

B. Covalent bonds between the hydrogen atoms of two adjacent water molecules

C. Hydrogen bonds between the oxygen atom of one water molecule and a hydrogen atom

of another water molecule

D. Covalent bonds between the oxygen atom of one water molecule and a hydrogen atom

of another water molecule

E. Hydrogen bonds between water molecules and other types of molecules

Directions: Each group of questions in this section consists of five lettered choices followed by

a list of numbered phrases or sentences. For each numbered phrase or sentence select the one

heading that is most closely related to it and fill in the corresponding oval on the answer sheet.

Each lettered choice may be used once, more than once, or not at all in each group.

For questions 11–14, refer to the following list of biomolecules.

A. Proteins

B. Carbohydrates

C. Nucleic acids

D Lipids

E Steroids

11. Includes molecules that function as cellular signals, receptors, enzymes, transporters, and

carriers

12. Includes glycogen, chitin, cellulose, and glucose

13. Used for insulation and buoyancy in marine Arctic animals

14. Used to carry the genetic code

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Ap Biology/biochemistry Worksheet Page 3