POST UTME RSU 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The diagram below shows the structure of a mitochondrion. Which of the following organelles is responsible for the synthesis of ATP?
A. Mitochondria
B. Matrix
C. Cristae
D. ATP synthase
Question 2
A researcher is studying the effect of pH on the growth of E. coli bacteria. The researcher measures the growth rate of the bacteria at different pH levels and obtains the following data: pH 7, growth rate 0.5; pH 8, growth rate 0.8; pH 9, growth rate 1.2. What is the best-fit linear equation for the data?
A. y = 0.1x + 0.5
B. y = 0.2x + 0.5
C. y = 0.3x + 0.5
D. y = 0.4x + 0.5
Question 3
In a diploid cell, what is the ratio of autosomal chromosomes to sex chromosomes during meiosis?
A. 1:1
B. 2:1
C. 1:2
D. 2:2
Question 4
The process by which plants convert light energy into chemical energy is known as
A. Respiration
B. Photosynthesis
C. Transpiration
D. Translocation
Question 5
A 35-year-old man presents with symptoms of shortness of breath, chest pain, and palpitations. His electrocardiogram (ECG) shows a prolonged QT interval. Which of the following is the most likely diagnosis?
A. Hypertrophic Cardiomyopathy
B. Dilated Cardiomyopathy
C. Arrhythmogenic Right Ventricular Cardiomyopathy
D. Long QT Syndrome
Question 6
A patient is diagnosed with a genetic disorder caused by a deletion of a gene encoding a protein involved in muscle function. Which of the following is a likely consequence of this deletion?
A. Muscle weakness
B. Muscle hypertrophy
C. Muscle atrophy
D. No effect on muscle function
Question 7
A diagram of the human nervous system is shown below. Which part of the brain is responsible for regulating body temperature?
A. Cerebrum
B. Hypothalamus
C. Cerebellum
D. Brainstem
Question 8
A 25-year-old woman presents with symptoms of fatigue, weight loss, and abdominal pain. Her hemoglobin level is 8.5 g/dL. Which of the following is the most likely diagnosis?
A. Iron Deficiency Anemia
B. Vitamin B12 Deficiency
C. Folate Deficiency
D. Thalassemia
Question 9
A researcher is studying the effect of temperature on the rate of a chemical reaction. The researcher measures the rate of the reaction at different temperatures and obtains the following data: 20°C, rate 0.5; 30°C, rate 0.8; 40°C, rate 1.2. What is the activation energy of the reaction?
A. 10 kJ/mol
B. 20 kJ/mol
C. 30 kJ/mol
D. 40 kJ/mol
Question 10
The Hardy-Weinberg principle states that a population will be in genetic equilibrium if the following conditions are met. Which of the following is NOT a necessary condition?
A. Random mating
B. No mutation
C. No gene flow
D. Cons\tant population size
Question 11
A 5-kg object is moving in a circular path with a radius of 2 m. The object has a speed of 4 m/s. What is the centripetal acceleration of the object?
A. 1.0 m/s^2
B. 2.0 m/s^2
C. 3.0 m/s^2
D. 4.0 m/s^2
Question 12
A researcher is studying the effect of pH on the growth of E. coli. The graph below shows the growth of E. coli at different pH levels. What is the optimal pH for the growth of E. coli?
A. 6.5
B. 7.5
C. 8.5
D. 9.5
Question 13
In a eukaryotic cell, the process of cell division that results in the production of four daughter cells is known as
A. Mitosis
B. Meiosis
C. Binary Fission
D. Endoreduplication
Question 14
A 2.5 kg block is attached to a horizontal, massless spring with a force cons\tant of 100 N/m. The block is displaced by 0.25 m from its equilibrium position and released from rest. What is the maximum speed of the block?
A. 1.0 m/s
B. 1.5 m/s
C. 2.0 m/s
D. 2.5 m/s
Question 15
A plant has a photosynthetic rate of 10 μmol CO2 s-1. If the light intensity is increased by a factor of 2, what is the new photosynthetic rate?
A. 5
B. 10
C. 15
D. 20

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