POST UTME AAUA 2018 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In the context of growth and regulation, what is the term for the process by which cells divide and grow?
A. Mitosis
B. Meiosis
C. DNA replication
D. Protein synthesis
Question 2
A 20-year-old woman presents with a 1-year history of amenorrhea and galactorrhea. Physical examination reveals a palpable mass in the sella turcica. Which of the following is the most likely diagnosis?
A. Prolactinoma
B. Craniopharyngioma
C. Growth Hormone Deficiency
D. Thyroid-Stimulating Hormone Deficiency
Question 3
The process by which an organism moves from one environment to another is called
A. Migration
B. Hibernation
C. Camouflage
D. Metamorphosis
Question 4
In the context of excretion and osmoregulation, what is the primary function of the kidneys in regulating electrolyte balance?
A. To regulate sodium levels
B. To regulate potassium levels
C. To regulate calcium levels
D. To regulate magnesium levels
Question 5
A researcher is studying the effects of a new antibiotic on a bacterial culture. Which of the following is the most likely outcome?
A. The bacteria will become resis\tant to the antibiotic
B. The bacteria will die off rapidly
C. The bacteria will experience a temporary slowdown in growth
D. The bacteria will experience no change
Question 6
A diagram of the human circulatory system is shown below. Identify the part labeled B.
A. Aorta
B. Pulmonary artery
C. Coronary artery
D. Carotid artery
Question 7
The bacterium Staphylococcus aureus is commonly found on the skin and mucous membranes of humans. Which of the following is a virulence factor that allows this bacterium to cause disease?
A. Coagulase
B. Hemoly\sin
C. Toxins
D. Capsule
Question 8
The e\cosystem of a coral reef is characterized by a high level of biodiversity and a complex food web. Which of the following is a key component of this e\cosystem?
A. Seagrass
B. Kelp
C. Coral
D. Seaweed
Question 9
In the context of excretion and osmoregulation, what is the primary function of the kidneys in maintaining homeostasis?
A. To regulate blood pressure
B. To maintain electrolyte balance
C. To remove waste products from the body
D. To regulate body temperature
Question 10
The type of respiration that occurs in the presence of oxygen is called
A. Aerobic Respiration
B. Anaerobic Respiration
C. Fermentation
D. Glycolysis
Question 11
In a photosynthetic pathway, what is the net result of the light-dep\endent reactions?
A. ATP and NADPH
B. Glu\cose and oxygen
C. Water and carbon dioxide
D. Proteins and lipids
Question 12
Which of the following is a characteristic of the nervous system?
A. It is a closed system
B. It is a diffusion-based system
C. It is a system that uses electrical and chemical signals
D. It is a system that uses only chemical signals
Question 13
A 30-year-old patient presents with a 2-year history of progressive weakness and fatigue. Physical examination reveals a dist\ended abdomen and a palpable mass in the left upper quadrant. Which of the following is the most likely diagnosis?
A. Polycystic Kidney Disease
B. Nephroblastoma
C. Wilms Tumor
D. Renal Cell Carcinoma
Question 14
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Retina
D. Lens
Question 15
A 30-year-old woman is experiencing difficulty getting pregnant. After undergoing a series of tests, she is diagnosed with a condition that affects the production of a specific hormone involved in ovulation. Which of the following is the most likely treatment?
A. Hormone replacement therapy
B. Fertility medications
C. Surgery to remove the ovaries
D. Surgery to remove the fallopian tubes

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