POST UTME NILE UNIVERSITY 2025 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A patient has a genetic disorder that causes an inability to digest lactose. Which of the following enzymes is deficient in this patient?
A. Lactase
B. Amylase
C. Tryp\sin
D. Pep\sin
Question 2
The process by which the body eliminates waste products through the kidneys is called?
A. Osmoregulation
B. Excretion
C. Regulation of body fluids
D. Regulation of blood pressure
Question 3
In a tropical rainforest biome, what is the primary mechanism by which plants obtain essential nutrients?
A. Photosynthesis
B. Decomposition
C. Nutrient cycling
D. Symbiotic relationships
Question 4
The xylem tissue in plants is responsible for transporting water and minerals from the roots to the leaves. Which of the following is a characteristic of xylem tissue?
A. It is a type of parenchyma tissue
B. It is responsible for transporting water and minerals
C. It is composed of tracheids and vessels
D. It is found only in dicot plants
Question 5
The diagram below shows a cross-section of a plant root. What is the function of the labeled structure?
A. Transport of water and minerals
B. Transport of sugars and amino acids
C. Storage of nutrients
D. Support of the plant
Question 6
In a tropical rainforest e\cosystem, the primary consumers are primarily herbivores that feed on the abundant vegetation. However, some primary consumers are known to be carnivorous. Which of the following is a characteristic of these carnivorous primary consumers?
A. They have a longer digestive tract than herbivorous primary consumers.
B. They have a shorter digestive tract than herbivorous primary consumers.
C. They have a more complex nervous system than herbivorous primary consumers.
D. They have a larger liver than herbivorous primary consumers.
Question 7
A diagram of the human circulatory system is shown below. What is the function of the part labeled B?
A. To pump blood to the lungs
B. To carry oxygenated blood to the body
C. To regulate blood pressure
D. To produce red blood cells
Question 8
The sense organ responsible for detecting changes in sound waves is the ear. Which of the following is a structure of the ear?
A. Eardrum
B. Cochlea
C. Ear canal
D. Middle ear bones
Question 9
The nervous system is responsible for transmitting signals between different parts of the body. Which of the following types of neurons is responsible for transmitting signals from sensory receptors to the central nervous system?
A. Motor neurons
B. Sensory neurons
C. Interneurons
D. Association neurons
Question 10
A human body requires a balanced diet to maintain optimal health. What is the primary function of the digestive system in the human body?
A. Absorption of nutrients
B. Digestion of food
C. Elimination of waste
D. Regulation of body temperature
Question 11
A study on the genetic variation of a population found that the frequency of the recessive allele 'a' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the dominant allele 'A'?
A. 0.8
B. 0.6
C. 0.4
D. 0.2
Question 12
The sense organ responsible for detecting changes in sound pressure is the?
A. Cochlea
B. Vestibule
C. Eustachian tube
D. Middle ear bones
Question 13
The xylem tissue in plants is responsible for?
A. Transporting water and minerals from the roots to the leaves
B. Transporting sugars and other organic compounds from the leaves to the rest of the plant
C. Supporting the plant's structure
D. Storing food and water
Question 14
A researcher is studying the population dynamics of a species of rabbit. The population growth rate is modeled by the \logistic equation \( \frac{dP}{dt} = rPleft\( 1 - \frac{P}{K}\right \ \) ). What is the carrying capacity of the population?
A. 10
B. 20
C. 30
D. 40
Question 15
A patient has a blood urea nitrogen (BUN) level of 25 mg/dL. What is the approximate value of the patient's glomerular filtration rate (GFR)?
A. 30 mL/min
B. 60 mL/min
C. 90 mL/min
D. 120 mL/min

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: