POST UTME BOWEN UNIVERSITY 2017 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 10 mL sample of a solution containing 0.5 M glu\cose is added to a 90 mL sample of 0.2 M glu\cose. What is the resulting concentration of the solution?
A. 0.3 M
B. 0.4 M
C. 0.5 M
D. 0.6 M
Question 2
A 50 g sample of a mixture of NaCl and KCl is dissolved in 100 mL of water. If the solution has a conductivity of 0.5 S/m, what is the molar concentration of the solution?
A. 0.1 M
B. 0.2 M
C. 0.3 M
D. 0.4 M
Question 3
A 2.5 L flask contains 0.5 mol of an ideal gas at 27°C. If the gas is heated to 37°C, what is the new volume?
A. 2.5 L
B. 3.5 L
C. 4.5 L
D. 5.5 L
Question 4
In asexual reproduction, the offspring are genetically identical to the parent because they
A. Develop from a \single cell that divides to form multiple offspring
B. Undergo a process of meiosis to produce gametes
C. Are produced through a process of mitosis
D. Are formed through a process of parthenogenesis
Question 5
A plant cell has a large central vacuole that contains a high concentration of solutes. What is the primary function of this vacuole?
A. To maintain cell turgor pressure
B. To store excess water
C. To regulate cell pH
D. To synthesize proteins
Question 6
The process by which an organism's genetic information is passed from one generation to the next is called what?
A. Mutation
B. Gene expression
C. Genetic drift
D. Heritability
Question 7
A diagram of a human eye is shown below. What is the primary function of the retina?
A. To focus light on the retina
B. To detect light and transmit signals to the brain
C. To regulate pupil size
D. To synthesize proteins
Question 8
In a tropical rainforest, the primary consumers are primarily herbivores that feed on the abundant plant life. Which of the following is a characteristic of these primary consumers?
A. They have a high metabolic rate
B. They have a low reproductive rate
C. They have a large body size
D. They have a specialized digestive system
Question 9
A diagram of a human brain is shown below. What is the primary function of the cerebral cortex?
A. To regulate body temperature
B. To control voluntary movements
C. To process sensory information
D. To synthesize proteins
Question 10
A patient is diagnosed with a bacterial infection that requires antibiotic treatment. Which of the following antibiotics is most likely to be effective against this infection?
A. Penicillin
B. Erythromycin
C. Ciprofloxacin
D. Vancomycin
Question 11
In a population of Drosophila melanogaster, the frequency of the recessive allele 'a' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'AA'?
A. 0.64
B. 0.36
C. 0.16
D. 0.84
Question 12
A researcher is studying the effects of pollution on a local e\cosystem. Which of the following is a likely consequence of pollution on the e\cosystem?
A. Decreased biodiversity
B. Increased population growth
C. Improved water quality
D. Enhanced soil fertility
Question 13
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Retina
D. Lens
Question 14
In the classification of living things, the kingdom level is based on
A. Cell structure and organization
B. Body symmetry and development
C. Metabolism and energy production
D. Reproduction and genetic makeup
Question 15
A diagram of a plant's xylem and phloem is shown below. What is the primary function of the xylem?
A. To transport water and minerals
B. To transport sugars and amino acids
C. To regulate cell pH
D. To synthesize proteins

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