*Question*
Q: Each muscle fiber contains hundreds of organelles called what? Choices: - fast glycolytic fibres - slow twitch fibres - pores - myofibrils A:
**Answer**
myofibrils

*Question*
Q: What is it that surrounds cells and serve to keep the insides separated from the outsides? Choices: - inner membranes - abundant membranes - similar membranes - biological membranes A:
**Answer**
biological membranes

*Question*
Q: Large or small numbers are expressed in scientific notation, which use powers of this? Choices: - 2 - 4 - 16 - 10 A:
**Answer**
10

*Question*
Q: On what basis are lipoproteins classified? Choices: - diameter - mass - weight - density A:
**Answer**
density