POST UTME UNIPORT 2017 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 50-year-old man has a family history of breast cancer. His mother and sister both developed breast cancer at ages 40 and 45, respectively. What is the probability that he will develop breast cancer by age 60?
A. 0.05
B. 0.10
C. 0.20
D. 0.30
Question 2
What is the process by which cells divide to produce four daughter cells?
A. Mitosis
B. Meiosis
C. Binary fission
D. Endoreduplication
Question 3
A plant cell has a vacuole that contains 0.5 M sucrose. If the cell membrane is impermeable to sucrose, what is the concentration of sucrose in the cytosol after 30 minutes?
A. 0.5 M
B. 0.75 M
C. 1.0 M
D. 1.25 M
Question 4
The process of excretion involves the removal of waste products from the body. Which of the following is a function of the kidneys?
A. To regulate blood pressure
B. To produce urine
C. To filter waste products from the blood
D. To regulate body temperature
Question 5
A cell is placed in a solution containing 0.1 M glu\cose and 0.2 M fructose. If the cell membrane is permeable to both glu\cose and fructose, what is the concentration of glu\cose in the cell after 10 minutes?
A. 0.05 M
B. 0.10 M
C. 0.15 M
D. 0.20 M
Question 6
A 2.5 L flask contains 0.5 mol of an ideal gas at 27°C. Calculate the pressure of the gas u\sing the ideal gas law.
A. 1.01 × 10^5 Pa
B. 2.02 × 10^5 Pa
C. 3.03 × 10^5 Pa
D. 4.04 × 10^5 Pa
Question 7
The process of cellular respiration involves the breakdown of glu\cose to produce energy. Which of the following is a byproduct of this process?
A. Carbon dioxide
B. Water
C. Oxygen
D. All of the above
Question 8
A plant cell has a vacuole that contains 0.5 M sucrose. If the cell membrane is permeable to sucrose, what is the concentration of sucrose in the cytosol after 30 minutes?
A. 0.25 M
B. 0.5 M
C. 0.75 M
D. 1.0 M
Question 9
A person with normal vision can see objects clearly at a dis\tance of 25 cm. If the person's eye is 1.5 cm from the object, what is the magnification of the eye?
A. 1.5
B. 2.0
C. 2.5
D. 3.0
Question 10
The nervous system can be divided into two main parts: the central nervous system (CNS) and the peripheral nervous system (PNS). Which of the following is a function of the PNS?
A. To regulate body temperature
B. To control voluntary movements
C. To transmit sensory information
D. To regulate heart rate
Question 11
The human eye has a lens that changes shape to focus on objects at different dis\tances. What is the name of this process?
A. Accommodation
B. Convergence
C. Divergence
D. Focu\sing
Question 12
A plant cell has a vacuole that contains 0.5 M sucrose. If the cell membrane is permeable to sucrose, what is the concentration of sucrose in the cytosol after 30 minutes?
A. 0.25 M
B. 0.5 M
C. 0.75 M
D. 1.0 M
Question 13
In a population of Drosophila melanogaster, the frequency of the recessive allele 'r' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the dominant allele 'R'?
A. 0.8
B. 0.6
C. 0.4
D. 0.2
Question 14
In a process of photosynthesis, which of the following is the final product of the light-dep\endent reactions?
A. ATP
B. NADPH
C. O2
D. H2O
Question 15
What is the primary function of the Golgi apparatus in eukaryotic cells?
A. Protein synthesis
B. Cell signaling
C. Lipid synthesis
D. Protein modification

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