POST UTME RHEMA UNIVERSITY 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The human nervous system consists of the central nervous system (CNS) and the peripheral nervous system (PNS). Which of the following is a function of the PNS?
A. To regulate body temperature.
B. To transmit sensory information to the CNS.
C. To control voluntary movements.
D. To regulate heart rate.
Question 2
A plant is placed in a greenhouse with a temperature of 25°C and a relative humidity of 60%. If the plant's stomatal resis\tance is 0.5 s/m, what is the rate of transpiration?
A. 0.15 g/m²s
B. 0.20 g/m²s
C. 0.25 g/m²s
D. 0.30 g/m²s
Question 3
The process of osmoregulation in animals involves the regulation of the concentration of solutes in the body fluids. Which of the following is an example of osmoregulation?
A. The process of excretion of waste products.
B. The process of regulating body temperature.
C. The process of maintaining a cons\tant blood pH.
D. The process of regulating the concentration of solutes in the body fluids.
Question 4
A 2.5-liter solution contains 1.8 liters of ethanol and 0.7 liters of water. What is the mole \fraction of ethanol in the solution?
A. 0.72
B. 0.68
C. 0.64
D. 0.60
Question 5
The process of meiosis in a diploid cell results in the production of four haploid cells. Which of the following statements about meiosis is correct?
A. Meiosis is a type of mitosis.
B. Meiosis results in the production of four diploid cells.
C. Meiosis is a type of asexual reproduction.
D. Meiosis results in the production of four haploid cells.
Question 6
In a population of Drosophila melanogaster, the frequency of the recessive allele 'r' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the dominant allele 'R'?
A. 0.8
B. 0.6
C. 0.4
D. 0.2
Question 7
The sense organ responsible for detecting changes in sound pressure is the?
A. Ear
B. Eye
C. Nose
D. Mouth
Question 8
The tissue type that consists of a group of similar cells that are not bound together by a basement membrane is the?
A. Epithelial tissue
B. Connective tissue
C. Muscle tissue
D. Nervous tissue
Question 9
The theory of evolution by natural selection was first proposed by Charles Darwin in his book 'On the Origin of Species'. Which of the following is a key concept of this theory?
A. The idea that species are fixed and unchanging.
B. The idea that species evolve over time through the process of natural selection.
C. The idea that the environment is the primary driver of evolution.
D. The idea that evolution occurs through the process of genetic drift.
Question 10
The type of reproduction that involves the production of offspring without the fusion of gametes is?
A. Asexual reproduction
B. Sexual reproduction
C. Binary fission
D. Mitosis
Question 11
In a eukaryotic cell, the process of photosynthesis occurs in the
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Endoplasmic reticulum
Question 12
The nervous system's coordination is primarily achieved through the transmission of electrical and chemical signals between neurons. Which of the following best describes the process of synaptic transmission?
A. The release of neurotransmitters from the presynaptic neuron causes a depolarization of the postsynaptic neuron.
B. The binding of neurotransmitters to receptors on the postsynaptic neuron causes a hyperpolarization of the postsynaptic neuron.
C. The release of neurotransmitters from the presynaptic neuron causes a hyperpolarization of the postsynaptic neuron.
D. The binding of neurotransmitters to receptors on the postsynaptic neuron causes a depolarization of the postsynaptic neuron.
Question 13
The diagram below shows the structure of a nerve cell. Which of the following is the primary function of the d\endrite?
A. Transmission of nerve impulses
B. Reception of nerve impulses
C. Storage of nerve impulses
D. Synthesis of neurotransmitters
Question 14
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope, which is triggered by the activation of the
A. S phase
B. G1 phase
C. G2 phase
D. Prophase
Question 15
The human eye is a complex organ that is responsible for detecting light and transmitting visual information to the brain. Which of the following is a function of the retina?
A. To detect light.
B. To transmit visual information to the brain.
C. To regulate pupil size.
D. To focus light on the retina.

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