POST UTME IMS U 2021 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In a e\cosystem, what is the term for the process by which dead organisms are broken down into simpler subs\tances?
A. Photosynthesis
B. Respiration
C. Decomposition
D. Fermentation
Question 2
In the classification of living things, what is the primary criterion used to distinguish between prokaryotes and eukaryotes?
A. Cell shape
B. Cell size
C. Presence of a true nucleus
D. Cell wall composition
Question 3
A diagram of the human brain is shown below. Identify the part labeled 'A'.
A. Cerebrum
B. Cerebellum
C. Brainstem
D. Frontal lobe
Question 4
In a population of Drosophila melanogaster, the frequency of the recessive allele 'a' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'AA'?
A. 0.2
B. 0.4
C. 0.6
D. 0.8
Question 5
A plant cell is shown below. Identify the part labeled 'B'.
A. Cell membrane
B. Cell wall
C. Nucleus
D. Chloroplast
Question 6
A person has a visual acuity of 6/60 in the right eye and 6/60 in the left eye. What is the visual acuity of the person?
A. 6/60
B. 6/12
C. 6/6
D. 20/20
Question 7
A bio\logist is studying the structure of a plant cell. What is the function of the cell wall?
A. To provide support to the cell
B. To regulate the movement of subs\tances in and out of the cell
C. To store genetic information
D. To synthesize proteins
Question 8
A species of plant has a unique adaptation where it can change its leaf shape in response to changes in light intensity. What is the name of this adaptation?
A. Plasticity
B. Homeostasis
C. Heterochrony
D. Phenotypic variation
Question 9
A species of bacteria is classified as a prokaryote. What is the characteristic feature of its cell structure?
A. Presence of a true nucleus
B. Presence of a cell wall
C. Presence of a plasma membrane
D. Absence of a true nucleus
Question 10
A cell undergoing mitosis has a nucleus with 46 chromosomes. What is the total number of chromosomes in the daughter cells after mitosis?
A. 46
B. 92
C. 184
D. 230
Question 11
A population of E. coli has a mean generation time of 30 minutes. If the population is growing exponentially, what is the growth rate?
A. 0.02
B. 0.03
C. 0.04
D. 0.05
Question 12
The sense organ responsible for detecting changes in light intensity is the
A. Eye
B. Ear
C. Nose
D. Mouth
Question 13
A geneticist is studying the inheri\tance of a particular trait in a population of mice. The trait is controlled by a \single gene with two alleles: A and a. If the genotype of the mice is AA, what is the phenotype?
A. Dominant
B. Recessive
C. Homozygous
D. Heterozygous
Question 14
The structure of a plant cell that provides support and maintains the cell's shape is the
A. Cell wall
B. Cell membrane
C. Cytoplasm
D. Vacuole
Question 15
A 2.5 M solution of NaCl is diluted to 1 M. What is the new volume of the solution?
A. 2.5 L
B. 5 L
C. 10 L
D. 20 L

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