POST UTME AAUA 2018 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
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 2
In the context of cellular respiration, what is the role of the electron transport chain in generating ATP?
A. To produce NADH and FADH2
B. To generate a proton gradient across the mitochondrial membrane
C. To produce ATP directly
D. To reduce oxygen to water
Question 3
The process by which plants convert light energy into chemical energy is called
A. Photosynthesis
B. Respiration
C. Transpiration
D. Translocation
Question 4
The process by which an organism moves from one environment to another is called
A. Migration
B. Hibernation
C. Camouflage
D. Metamorphosis
Question 5
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 6
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 7
In the context of eco\logy, what is the term for the process by which plants convert light energy into chemical energy?
A. Photosynthesis
B. Respiration
C. Decomposition
D. Fermentation
Question 8
In a photosynthetic pathway, which of the following is the primary acceptor of electrons in the light-dep\endent reactions?
A. P680
B. P700
C. Ferredoxin
D. Plastocyanin
Question 9
A patient is undergoing a blood transfusion. The blood type of the donor is AB positive, and the recipient's blood type is A negative. What is the primary concern regarding this transfusion?
A. Hemolysis due to incompatibility
B. Anaphylaxis due to allergic reaction
C. Infection due to bacterial contamination
D. Coagulopathy due to clotting disorders
Question 10
In the process of photosynthesis, what is the role of light energy?
A. It is used to produce ATP and NADPH
B. It is used to produce glu\cose and oxygen
C. It is used to produce starch and proteins
D. It is used to produce ethylene gas
Question 11
In the xylem, what is the primary function of the tracheids?
A. Transport of water and minerals from roots to leaves
B. Transport of sugars and amino acids from leaves to roots
C. Storage of starch and proteins in leaves
D. Production of ethylene gas in fruits
Question 12
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 13
In the classification of living things, what is the highest level of classification?
A. Domain
B. Kingdom
C. Phylum
D. Class
Question 14
In the context of asexual reproduction, what is the primary advantage of budding in yeast?
A. Increased genetic variation
B. Reduced energy exp\enditure
C. Enhanced survival rate
D. Improved nutrient uptake
Question 15
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

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