POST UTME EKSU 2017 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 10 kg block is placed on a frictionless surface and a horizontal force of 20 N is applied to it. What is the acceleration of the block?
A. 0.2 m/s^2
B. 0.5 m/s^2
C. 1.0 m/s^2
D. 2.0 m/s^2
Question 2
The sense organ responsible for detecting changes in sound waves is the?
A. Eye
B. Ear
C. Nose
D. Mouth
Question 3
In the context of evolutionary theory, what is the primary mechanism by which genetic drift contributes to the loss of genetic variation in a population?
A. Genetic drift is the random change in allele frequencies in a population over time.
B. Genetic drift leads to the loss of genetic variation due to the random sampling of alleles in each generation.
C. Genetic drift is the process by which a population becomes genetically homogeneous due to the loss of rare alleles.
D. Genetic drift is the increase in genetic variation due to the random change in allele frequencies.
Question 4
A plant cell is placed in a solution with a concentration of 0.1 M glu\cose. If the cell membrane is permeable to glu\cose, what will happen to the concentration of glu\cose inside the cell?
A. Increase
B. Decrease
C. Remain the same
D. Become isotonic
Question 5
A 40-year-old man presents with symptoms of chronic obstructive pulmonary disease (COPD). Which of the following is a characteristic feature of COPD?
A. Emphysema
B. Chronic bronchitis
C. Asthma
D. Pneumonia
Question 6
The process of evolution involves the change in the frequency of alleles in a population over time. Which of the following mechanisms is responsible for the increase in the frequency of a beneficial allele?
A. Natural selection
B. Genetic drift
C. Gene flow
D. Mutation
Question 7
In asexual reproduction, which of the following organisms is an example of a type that reproduces by budding?
A. Bacteria
B. Fungi
C. Plants
D. Animals
Question 8
A population of Drosophila melanogaster is being studied for its genetic variation. The population has a mean body length of 10 mm with a s\tandard deviation of 1 mm. If a sample of 100 flies is taken from the population, what is the probability that the sample mean body length will be greater than 11 mm?
A. 0.05
B. 0.01
C. 0.005
D. 0.001
Question 9
The process of mitosis in eukaryotic cells results in which of the following?
A. Two daughter cells with the same number of chromosomes
B. One daughter cell with the same number of chromosomes
C. Two daughter cells with a different number of chromosomes
D. No change in the number of chromosomes
Question 10
The xylem in plants is responsible for transporting which of the following subs\tances?
A. Water and minerals
B. Nutrients and sugars
C. Hormones and waste products
D. Oxygen and carbon dioxide
Question 11
The process of photosynthesis in plants involves the conversion of light energy into chemical energy in the form of glu\cose. Which of the following is a byproduct of this process?
A. Oxygen
B. Carbon dioxide
C. Water
D. Nitrogen
Question 12
A plant has a photosynthetic rate of 10 μmol CO2 s-1. If the light intensity is increased by a factor of 2, what is the new photosynthetic rate?
A. 5 μmol CO2 s-1
B. 10 μmol CO2 s-1
C. 20 μmol CO2 s-1
D. 40 μmol CO2 s-1
Question 13
A solution of 0.1 M NaCl is being used to study the transport of ions across a cell membrane. If the volume of the solution is increased by a factor of 10, what is the new concentration of NaCl?
A. 0.01 M
B. 0.1 M
C. 1 M
D. 10 M
Question 14
A 50-year-old patient presents with symptoms of chronic kidney disease. Which of the following is a primary function of the kidneys that is affected in this condition?
A. Regulation of blood pressure
B. Maintenance of electrolyte balance
C. Production of red blood cells
D. Absorption of nutrients
Question 15
The sense organ responsible for detecting changes in smell is the?
A. Eye
B. Ear
C. Nose
D. Mouth

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