POST UTME ELIZADE UNIVERSITY 2018 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 25-year-old woman has been experiencing symptoms of Crohn's disease for the past 2 years. Her doctor has ordered a barium enema to confirm the diagnosis. What is the most likely finding on the barium enema?
A. Presence of strictures
B. Presence of fistulas
C. Presence of abscesses
D. Absence of haustra
Question 2
Which of the following is an example of a biome in eco\logy?
A. Grassland e\cosystem
B. Desert e\cosystem
C. Rainforest e\cosystem
D. Tundra e\cosystem
Question 3
The human circulatory system is responsible for transporting oxygen and nutrients to cells and removing waste products. Which of the following is a type of blood vessel?
A. Artery
B. Vein
C. Capillary
D. Blood vessel
Question 4
In the context of cell structure, what is the term for the region of the cell where proteins are synthesized?
A. Nucleus
B. Mitochondria
C. Endoplasmic Reticulum
D. Ribosome
Question 5
A diagram of a plant cell is shown below. What is the function of the structure labeled 'A'?
A. photosynthesis
B. respiration
C. cell division
D. cell signaling
Question 6
What is the primary function of the nervous system in humans?
A. Detection of light and color
B. Regulation of pupil size
C. Production of tears and mucus
D. Transmission of signals to the brain
Question 7
In the human body, the nervous system and the \endocrine system work together to coordinate various functions. Which of the following is an example of a hormone produced by the \endocrine system?
A. Insulin
B. Adrenaline
C. Thyroxine
D. Growth hormone
Question 8
Which of the following is an example of a symbiotic relationship in eco\logy?
A. Predator-prey relationship between lions and zebras
B. Competition between two species for resources
C. Mutualism between clownfish and sea anemones
D. Commensalism between birds and trees
Question 9
The human eye is a complex sense organ that is responsible for detecting light and transmitting visual information to the brain. Which of the following is a type of cell found in the retina?
A. Rod cells
B. Cones
C. Bipolar cells
D. Ganglion cells
Question 10
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 genetic drift
Question 11
The human body is composed of four main types of tissues: epithelial, connective, muscle, and nervous. Which of the following is a characteristic of epithelial tissue?
A. It is found in the dermis layer of the skin
B. It forms the lining of organs and glands
C. It is composed of muscle fibers
D. It is found in the bone marrow
Question 12
A diagram of a human eye is shown below. What is the function of the structure labeled 'C'?
A. re\fraction of light
B. absorption of light
C. reflection of light
D. production of light
Question 13
A study on the effect of pH on the activity of the enzyme lactase found that the activity of the enzyme increased by 20% for every 1 unit decrease in pH. If the initial pH is 7, what will be the activity of the enzyme at pH 5?
A. 120%
B. 140%
C. 160%
D. 180%
Question 14
A diagram of a human digestive system is shown below. What is the function of the structure labeled 'B'?
A. absorption of nutrients
B. breakdown of proteins
C. production of digestive enzymes
D. storage of food
Question 15
In a desert e\cosystem, the primary producers are typically plants that have adapted to survive in the harsh conditions. What is the name of the type of plant that is commonly found in deserts?
A. Cacti
B. Succulents
C. Grasses
D. Trees

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