POST UTME LEAD CITY UNIVERSITY 2019 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The diagram below shows a cross-section of a human kidney. Which part is responsible for filtering waste from the blood?
A. Nephron
B. Renal Artery
C. Renal Vein
D. Kidney Cortex
Question 2
The process of photosynthesis in plants involves the conversion of light energy into chemical energy in the form of glu\cose. Which of the following is a byproduct of this process?
A. Oxygen
B. Carbon dioxide
C. Water
D. Nitrogen
Question 3
In the context of cellular respiration, what is the role of the mitochondria?
A. Site of protein synthesis
B. Site of cellular respiration
C. Site of cell division
D. Site of cell signaling
Question 4
In the context of cellular respiration, what is the net result of the citric acid cycle?
A. The production of 2 ATP and 2 NADH
B. The production of 1 ATP and 1 NADH
C. The production of 3 ATP and 3 NADH
D. The production of 4 ATP and 4 NADH
Question 5
In a tropical rainforest, the primary consumers are primarily composed of which of the following?
A. Herbivorous insects
B. Fungi and bacteria
C. Small mammals and birds
D. Decomposers
Question 6
The hormone that stimulates the release of insulin from the pancreas is known as?
A. Glucagon
B. Insulin
C. Ghrelin
D. Somatostatin
Question 7
A 2.5 L flask contains 1.5 mol of an ideal gas at 27°C. What is the pressure of the gas?
A. 2.0 \times 10^5 Pa
B. 3.0 \times 10^5 Pa
C. 4.0 \times 10^5 Pa
D. 5.0 \times 10^5 Pa
Question 8
The process of mitosis is a type of cell division that results in two daughter cells that are genetically identical to the parent cell. Which of the following is a stage of mitosis?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 9
In a population of Drosophila melanogaster, the frequency of the recessive allele 'r' for red eyes 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 10
A 1.0 L solution contains 0.5 mol of NaCl. What is the concentration of NaCl?
A. 0.2 M
B. 0.3 M
C. 0.4 M
D. 0.5 M
Question 11
A diagram of the human respiratory system is shown below. Which of the following structures is responsible for the exchange of oxygen and carbon dioxide?
A. Trachea
B. Lungs
C. Diaphragm
D. Bronchi
Question 12
The process by which the body regulates the amount of water in the body is known as?
A. Osmoregulation
B. Osmosis
C. Diffusion
D. Active transport
Question 13
The process of evolution by natural selection involves the survival and reproduction of individuals with favorable traits in a given environment. Which of the following is a key component of this process?
A. Mutation
B. Genetic drift
C. Gene flow
D. Natural selection
Question 14
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. 0.36
B. 0.64
C. 0.8
D. 0.16
Question 15
In the context of cell division, what is the role of the spindle fibers in mitosis?
A. They attach to the centromeres of sister chromatids
B. They separate the sister chromatids
C. They form the nuclear envelope
D. They condense the chromosomes

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