POST UTME RHEMA UNIVERSITY 2023 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The type of excretory system found in humans is:
A. Closed System
B. Open System
C. Partially Closed System
D. Partially Open System
Question 2
A cell is placed in a solution with a pH of 5.5. What is the concentration of hydrogen ions in the solution?
A. 1.0 x 10^\( -5 \) M
B. 1.0 x 10^\( -6 \) M
C. 1.0 x 10^\( -7 \) M
D. 1.0 x 10^\( -8 \) M
Question 3
In the context of cell division, what is the primary function of the spindle fibers during mitosis?
A. Separation of chromosomes
B. Attachment of chromosomes to the spindle pole
C. Formation of the nuclear envelope
D. Condensation of chromatin
Question 4
In the context of cell division, what is the primary function of the spindle fibers during anaphase?
A. To attach the sister chromatids to the spindle fibers
B. To separate the sister chromatids and move them to opposite poles
C. To form the cleavage furrow during cytokinesis
D. To condense the chromosomes during prophase
Question 5
In a eukaryotic cell, the process of photosynthesis occurs in the following organelle:
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Endoplasmic Reticulum
Question 6
A patient is diagnosed with a bacterial infection. Which of the following antibiotics would be most effective against this type of infection?
A. Penicillin
B. Erythromycin
C. Ciprofloxacin
D. Vancomycin
Question 7
A species of plant has a photosynthetic rate of 10 μmol CO2 s-1. If the light intensity is increased by a factor of 4, what is the new photosynthetic rate?
A. 20 μmol CO2 s-1
B. 40 μmol CO2 s-1
C. 80 μmol CO2 s-1
D. 160 μmol CO2 s-1
Question 8
A diagram of a human eye is shown below. What is the primary function of the retina in this eye?
A. Detection of light
B. Formation of the visual image
C. Transmission of nerve impulses
D. Regulation of pupil size
Question 9
A diagram of a human reproductive system is shown below. What is the function of the structure labeled 'B'?
A. To produce eggs
B. To transport eggs to the uterus
C. To regulate the menstrual cycle
D. To provide structural support
Question 10
In the context of evolutionary theory, what is the primary mechanism by which natural selection acts on genetic variation within a population?
A. Genetic drift
B. Gene flow
C. Mutation
D. Selection
Question 11
A bacterium has a generation time of 2 hours. If the population size is 10^6, what is the growth rate?
A. 0.5 h-1
B. 1.0 h-1
C. 2.0 h-1
D. 4.0 h-1
Question 12
A cell undergoing mitosis has a DNA content of 2C. What is the stage of mitosis at which this occurs?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 13
In the context of eco\logical cycles, what is the primary function of decomposers in the e\cosystem?
A. Production of organic compounds
B. Breakdown of organic compounds
C. Absorption of nutrients
D. Release of oxygen
Question 14
A researcher is studying the effects of pH on the growth of E. coli. Which of the following would be the most appropriate method for measuring the growth of the bacteria?
A. U\sing a spectrophotometer to measure the absorbance of the culture
B. U\sing a microscope to count the number of bacteria
C. U\sing a pH meter to measure the pH of the culture
D. U\sing a thermometer to measure the temperature of the culture
Question 15
A patient has a fever of 38°C. If the normal body temperature is 37°C, what is the temperature difference?
A. 0.5°C
B. 1.0°C
C. 2.0°C
D. 5.0°C

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