Biology Quiz on Life and Homeostasis

The smallest unit of LIFE (living thing) is ____.

• atom

• cell

• organ

• water molecules

• carbohydrates

This is ____ how your heart rate is controlled.

• how your heart rate is controlled

• only for cooling off your body when too hot

• a feedback loop, how homeostasis occurs

Which of these is NOT an atom?

• oxygen

• carbon dioxide

• carbon

• calcium

The formula that shows how a molecule is bonded together and what atoms it contains is called _______.

• structural formula

• Molecular formula

• Periodic table

Which is an organic molecule?

• O2

• CO2

• H2O

• C6H12O6

Carbon has 4 empty electron spots and will therefore bond ___.

• 1

• 2

• 3

• 4

Which is a polymer molecule?

• starch

• glucose

• fatty acid

What reaction would be used to connect glucose and galactose monosaccharides?

What reaction would be used to connect glycerol, 2 fatty acid tails, and a phosphate?

What reaction would be used to digest pasta into glucose monosaccharides?