PCAT Practice Questions

Practice Question #1: Chemistry
200 mL of an ideal gas is placed in a piston and is held at a pressure of 500 torr. If the temperature is held constant and the pressure is increased to 650 torr, what is the new volume of the gas?
 A. 75 mL
 B. 154 mL
 C. 220 mL
 D. 300 mL

Practice Question #2: Biology
At two independently assorting loci, a man has the following genotype: GgHH. He marries a woman with the genotype ggHh. What is the probability that they will have a child who has the same genotype as the father?
 A. 0
 B. ⅛
 C. ¼
 D. ½

Practice Question #3: Biology
In a certain genetically stable population, the frequency of a recessive allele (for a trait with two alleles) is 0.6. What is the frequency of individuals expressing the dominant trait?
 A. 0.16
 B. 0.24
 C. 0.36
 D. 0.64

Practice Question #4: Chemistry
Under what conditions do gases exhibit ideal behavior?
 A. Low pressures and low temperatures
 B. Low pressures and high temperatures
 C. High pressures and high temperatures
 D. High pressures and low temperatures

Practice Question #5: Math
If a multivitamin supplement costs $n for 100 pills, how many pills can be bought for $10?
 A. 10/n
 B. 1000/n
 C. 10n
 D. 1000n

Practice Question #6: Math
Which of the following is the greatest?
 A. 2⁶
 B. 4⁴
 C. 8³
 D. 16²

Practice Question #7: Math
Farmer Smith enclosed his rectangular pasture with fence that cost him $1.50 per linear meter. If his pasture is twice as long as it is wide with a total area of 180,000 square meters, then what was the cost, in dollars, of the fence?
 A. 1,200
 B. 1,500
 C. 1,800
 D. 2,700

Practice Question #8: Math
Paul’s average bowling score for a series was 164 and Dave’s was 158. If each of them bowled 4 games, how much greater was Paul’s total score for the series than Dave’s?
 6
 12
 18
 24
Complete the quiz above to get your score and see the correct answers.