DAT Practice Test (Survey of Natural Sciences) 3

Question 1

Which gas law states that volume is inversely proportional to pressure at constant temperature?

Accepted Answer

Boyle's law

Answer

Boyle's law relates pressure and volume inversely at fixed temperature.

Question 2

Enzymes increase reaction rates primarily by doing what?

Accepted Answer

Lowering activation energy

Answer

Enzymes are catalysts that lower the activation energy of reactions.

Question 3

Which blood vessels carry oxygenated blood away from the heart to the body?

Accepted Answer

Arteries

Answer

Systemic arteries carry oxygen-rich blood from the heart to tissues.

Question 4

What is the oxidation state of sulfur in sulfuric acid (H2SO4)?

Accepted Answer

+6

Answer

With H at +1 and O at -2, sulfur must be +6 to balance the neutral molecule.

Question 5

Which structure in plant cells is responsible for photosynthesis?

Accepted Answer

Chloroplast

Answer

Chloroplasts contain chlorophyll and carry out photosynthesis.