POST UTME MADONNA UNIVERSITY 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The process of osmoregulation in the body involves the regulation of electrolyte balance and water balance. Which of the following is a key hormone involved in osmoregulation?
A. Antidiuretic hormone (ADH)
B. Aldosterone
C. Insulin
D. Glucagon
Question 2
The diagram below shows a cross-section of a plant root. Which of the following is a function of the xylem in this root?
A. Transporting water and minerals from the soil to the leaves
B. Transporting sugars and other organic compounds from the leaves to the rest of the plant
C. Supporting the structure of the plant
D. Storing food for the plant
Question 3
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 4
In a study on the epidemio\logy of malaria, researchers found that the prevalence of the disease was higher in areas with poor sanitation and inadequate waste management. Which of the following best describes the relationship between sanitation and malaria prevalence?
A. Positive correlation
B. Negative correlation
C. No correlation
D. Inverse correlation
Question 5
The process of growth and development in animals involves the coordinated action of various hormones. Which of the following hormones is responsible for the promotion of growth and development in children?
A. Growth hormone
B. Thyroid hormone
C. Adrenaline
D. Insulin
Question 6
A population of rabbits is growing at a rate of 20% per year. If the population is currently 1000 individuals, what will be the population size after 5 years?
A. 1620
B. 1820
C. 2020
D. 2220
Question 7
A researcher is studying the effect of light intensity on plant growth. Which of the following best describes the type of graph that would be used to represent the relationship between light intensity and plant growth?
A. Linear graph
B. Exponential graph
C. Logarithmic graph
D. Inverse graph
Question 8
A cell undergoes meiosis. Which of the following stages is characterized by the presence of four haploid daughter cells?
A. Meiosis I
B. Meiosis II
C. Anaphase I
D. Telophase II
Question 9
In the context of reproductive bio\logy, what is the primary function of the placenta?
A. Production of hormones
B. Exchange of oxygen and carbon dioxide
C. Production of antibodies
D. Regulation of fetal development
Question 10
A diagram of a human eye is shown below. Identify the part labeled 'B'?
A. Cornea
B. Iris
C. Lens
D. Retina
Question 11
In a eukaryotic cell, the process of mitosis involves the separation of chromosomes into two daughter cells. Which of the following stages of mitosis is characterized by the condensation of chromosomes?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 12
The process of meiosis in a diploid organism results in the production of four haploid cells, each with half the number of chromosomes as the parent cell. Which of the following is a characteristic of the cells produced by meiosis?
A. They have the same number of chromosomes as the parent cell
B. They have half the number of chromosomes as the parent cell
C. They have twice the number of chromosomes as the parent cell
D. They have a variable number of chromosomes
Question 13
In a cell undergoing mitosis, which of the following stages is characterized by the presence of a distinct nuclear envelope?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 14
The diagram below shows a cross-section of a human eye. Which of the following is a function of the lens?
A. Focu\sing light onto the retina
B. Allowing light to enter the eye
C. Regulating the amount of light that enters the eye
D. Removing waste products from the eye
Question 15
The Hardy-Weinberg principle states that allele and genotype frequencies in a population will remain cons\tant from generation to generation in the absence of other evolutionary influences. Which of the following is a necessary condition for the Hardy-Weinberg principle to hold?
A. Random mating
B. No mutation
C. No gene flow
D. No natural selection

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Help others prepare! Share this practice hub: