POST UTME ELIZADE UNIVERSITY 2020 Biology | Objective
Practice these randomly selected questions to test your readiness.
Question 1
In the context of cellular respiration, what is the primary function of the electron transport chain?
Question 2
A diagram of the human circulatory system is shown below. Which of the following structures is responsible for the regulation of blood pressure?
Question 3
The process of osmoregulation in animals involves the regulation of water and salt balance in the body. Which of the following is a key component of the osmoregulatory system in humans?
Question 4
A 10 mL sample of a solution containing 0.1 M HCl is titrated with 0.1 M NaOH. What is the pH of the solution after the titration?
Question 5
In a population of 1000 individuals, the frequency of the dominant allele (A) is 0.6, and the frequency of the recessive allele (a) is 0.4. What is the expected genotype and phenotype ratio in the offspring of a cross between two heterozygous parents (Aa)?
Question 6
The diagram below shows the structure of a plant cell. Which of the following organelles is responsible for the synthesis of proteins?
Question 7
The Hardy-Weinberg principle states that the frequency of alleles in a population will remain cons\tant from generation to generation in the absence of other evolutionary influences. However, this principle assumes a random mating system. What would be the effect of a non-random mating system on the Hardy-Weinberg principle?
Question 8
A patient is diagnosed with a bacterial infection caused by Staphylococcus aureus. Which of the following antibiotics is most likely to be effective against this bacterium?
Question 9
The process of mitosis is a type of cell division that results in the production of two daughter cells with the same number and kind of chromosomes as the parent cell. Which of the following stages of mitosis is characterized by the condensation of chromosomes and the formation of the spindle apparatus?
Question 10
In the xylem, water and minerals are transported from the roots to the leaves through the process of transpiration. What is the primary mechanism by which water is absorbed by the roots?
Question 11
What is the primary function of the xylem in a plant?
Question 12
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope. What is the name of the stage in which the nuclear envelope breaks down?
Question 13
In the process of cellular respiration, what is the net result of the citric acid cycle?
Question 14
In a tropical rainforest, the energy flow from producers to primary consumers is typically characterized by a high rate of energy transfer. However, this energy is often lost as heat due to the high metabolic rates of these organisms. Which of the following best describes the type of e\cosystem where this occurs?
Question 15
The process of cellular respiration involves the breakdown of glu\cose to produce ATP, which is then used to power the cell's various activities. Which of the following is NOT a stage of cellular respiration?
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