POST UTME KSU 2018 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
What is the term for the process by which the kidneys regulate the concentration of ions in the blood?
A. Osmoregulation
B. Excretion
C. Filtration
D. Reabsorption
Question 2
A diagram of the human excretory system is shown below. Identify the part labeled E.
A. The skin
B. The liver
C. The pancreas
D. The kidneys
Question 3
A researcher is studying the effect of exercise on the cardiovascular system. Which of the following would be the best way to measure the effect of exercise on cardiac output?
A. U\sing a Doppler ultrasound to measure blood flow velocity
B. U\sing a cardiac catheter to measure cardiac output directly
C. U\sing a pulse oximeter to measure oxygen saturation
D. U\sing a blood pressure cuff to measure blood pressure
Question 4
In a certain species of plant, the flowers are either red or white. If the probability of a flower being red is 0.6 and the probability of a flower being white is 0.4, what is the probability that a randomly selected flower will be either red or white?
A. 0.4
B. 0.6
C. 0.8
D. 1.0
Question 5
A diagram of the human circulatory system is shown below. Identify the part labeled C.
A. The lungs
B. The liver
C. The heart
D. The kidneys
Question 6
A patient is diagnosed with a genetic disorder that affects the production of a specific protein. Which of the following would be the best way to diagnose the disorder?
A. Genetic testing to identify the mutation in the gene
B. Biochemical testing to measure the levels of the protein
C. Imaging studies to visualize the affected tissue
D. Clinical evaluation to assess the symptoms
Question 7
A 30-year-old woman is diagnosed with a rare genetic disorder that affects the production of a crucial enzyme in the glycolytic pathway. Which of the following enzymes is most likely affected?
A. Hexokinase
B. Phosphofructokinase
C. Pyruvate kinase
D. Glyceraldehyde-3-phosphate dehydrogenase
Question 8
A diagram of a human kidney is shown below. Which of the following structures is responsible for filtering waste products from the blood?
A. Liver
B. Spleen
C. Nephron
D. Pancreas
Question 9
In the process of mitosis, what is the term for the stage where the chromosomes are condensed and aligned at the metaphase plate?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 10
A diagram of a plant cell is shown below. Which of the following organelles is responsible for photosynthesis?
A. Mitochondria
B. Chloroplast
C. Endoplasmic reticulum
D. Golgi apparatus
Question 11
A 2-year-old child is diagnosed with a rare genetic disorder that affects the production of a crucial enzyme in the citric acid cycle. Which of the following enzymes is most likely affected?
A. Isocitrate dehydrogenase
B. Alpha-ketoglutarate dehydrogenase
C. Succinyl-CoA synthetase
D. Malate dehydrogenase
Question 12
A diagram of the human skeletal system is shown below. Which of the following bones is responsible for the formation of the shoulder joint?
A. Scapula
B. Humerus
C. Clavicle
D. Sternum
Question 13
The diagram below shows a simple circuit with a battery, a resistor, and a switch. If the switch is closed, what will be the direction of the current flow?
A. From A to B
B. From B to A
C. From C to B
D. From B to C
Question 14
What is the term for the process by which an organism's genetic information is modified by external factors?
A. Mutation
B. Genetic drift
C. Natural selection
D. Gene expression
Question 15
A population of rabbits is growing exponentially. If the initial population is 100 and the growth rate is 20% per year, what will be the population after 5 years?
A. 1000
B. 2000
C. 4000
D. 8000

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