POST UTME RHEMA UNIVERSITY 2025 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The process by which plants convert light energy into chemical energy is called:
A. Photosynthesis
B. Respiration
C. Transpiration
D. Evaporation
Question 2
A patient is diagnosed with a hormone deficiency. Which of the following hormones is responsible for regulating the concentration of glu\cose in the blood?
A. Insulin
B. Glucagon
C. Adrenaline
D. Thyroxine
Question 3
In a coral reef biome, the symbiotic relationship between coral and algae is an example of mutualism. Which of the following is a characteristic of mutualism?
A. Both organisms benefit and neither is harmed.
B. One organism benefits and the other is harmed.
C. Both organisms are harmed.
D. One organism benefits and the other is unaffected.
Question 4
A researcher is studying the behavior of a species of bird. Which of the following types of data would be most useful for unders\tanding the bird's migratory patterns?
A. Observations of the bird's behavior in its natural habitat
B. Measurements of the bird's wing length and weight
C. Data on the bird's population size and distribution
D. Information on the bird's diet and foraging behavior
Question 5
The process of cellular respiration involves the breakdown of glu\cose to produce energy, which is stored in the form of
A. ATP
B. NADH
C. FADH2
D. Pyruvate
Question 6
In a forest biome, the transport system of a tree consists of xylem and phloem tissues. Which of the following is a function of the xylem tissue?
A. Transporting water and minerals from the roots to the leaves.
B. Transporting sugars and other organic compounds from the leaves to the roots.
C. Providing structural support to the tree.
D. Regulating the tree's water balance.
Question 7
In the context of sense organs, what is the primary function of the olfactory epithelium in the nasal cavity?
A. To detect changes in air pressure
B. To detect changes in temperature
C. To detect odors and pheromones
D. To detect sounds
Question 8
The process of photosynthesis occurs in specialized organelles called chloroplasts. Which of the following is a byproduct of this process?
A. Glu\cose
B. Oxygen
C. Carbon dioxide
D. Water
Question 9
A plant cell has a large central vacuole that contains a high concentration of solutes. What is the primary function of this vacuole?
A. Storage of water and nutrients
B. Regulation of cell turgor pressure
C. Production of cell wall components
D. Synthesis of proteins
Question 10
In a tropical rainforest biome, the primary producers are plants that undergo photosynthesis. Which of the following is a characteristic of photosynthesis?
A. The process releases oxygen as a byproduct.
B. The process requires sunlight, water, and carbon dioxide.
C. The process produces glu\cose and oxygen.
D. The process occurs only in aquatic environments.
Question 11
In the context of evolutionary theory, what is the primary mechanism by which natural selection acts on a population?
A. Genetic drift
B. Gene flow
C. Mutation
D. Selection pressure
Question 12
A plant hormone that promotes cell elongation and cell division is:
A. Auxin
B. Gibberellin
C. Cytokinin
D. Ethylene
Question 13
A patient is diagnosed with a rare genetic disorder characterized by the absence of the enzyme phenylalanine hydroxylase. Which of the following symptoms is most likely to be associated with this disorder?
A. Mental retardation
B. Seizures
C. Skin discoloration
D. Growth retardation
Question 14
The process of cellular respiration involves the breakdown of glu\cose to produce ATP. Which of the following is a byproduct of this process?
A. Water
B. Carbon dioxide
C. Oxygen
D. All of the above
Question 15
A population of rabbits is introduced to a new island. Initially, the population grows exponentially, but eventually, it reaches a carrying capacity. What is the primary factor limiting the population growth?
A. Availability of food
B. Predation by other animals
C. Disease
D. Competition for resources

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: