Multiple choice

1. The process by which a biologist uses creative thought to find a pattern among isolated facts is called

A. inductive reasoning. 

B. proving a theory. 

C. simple reasoning.

D. proving a hypothesis.

2. In a eukaryotic cell, a network of protein filaments called _______ help maintain the shape of the cell.

A. organelles 

B. the cytoskeleton 

C. ribosomes

D. the nucleolus

3. Glycerol is a subunit molecule of a

A. carbohydrate. 

B. lipid. 

C. protein.

D. nucleic acid.

4. In the electron transport chain, the main purpose of the _______ we breathe is to keep electrons moving along from the first to the last chemical carrier.

A. carbon dioxide 

B. nitrogen 

C. atoms

D. oxygen