POST UTME UNIOSUN 2017 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The diagram below shows a cross-section of a plant stem. Which part of the stem is responsible for transporting water and minerals?
A. Cortex
B. Xylem
C. Phloem
D. Pith
Question 2
The process by which an organism's genetic information is passed from one generation to the next is known as:
A. Mutation
B. Genetic Drift
C. Gene Expression
D. Heritability
Question 3
The equation for the reaction of sodium hydroxide with hydrochloric acid is:
A. \( NaOH + HCl \rightarrow NaCl + H_2O \)
B. \( NaOH + HCl \rightarrow NaCl + CO_2 \)
C. \( NaOH + HCl \rightarrow NaCl + O_2 \)
D. \( NaOH + HCl \rightarrow NaCl + H_2 \)
Question 4
A diagram of a neuron is shown below. What is the function of the part labeled 'D'?
A. To transmit signals to other neurons
B. To receive signals from other neurons
C. To synthesize neurotransmitters
D. To regulate the flow of ions
Question 5
A diagram of a human digestive system is shown below. Which of the following statements is true regarding the role of the small intestine in nutrient absorption?
A. The small intestine is responsible for the breakdown of proteins into amino acids.
B. The small intestine is responsible for the absorption of water and electrolytes.
C. The small intestine is responsible for the absorption of carbohydrates.
D. The small intestine is responsible for the absorption of fats.
Question 6
Asexual reproduction in plants can occur through which of the following methods?
A. Budding
B. Fragmentation
C. Runners
D. All of the above
Question 7
In the context of classification of living things, what is the primary function of the kingdom level?
A. To group organisms based on their cell structure
B. To group organisms based on their genetic makeup
C. To group organisms based on their body structure
D. To group organisms based on their habitat
Question 8
The diagram below shows the structure of a cell. Identify the part labeled A:
A. Nucleus
B. Mitochondria
C. Endoplasmic Reticulum
D. Lysosome
Question 9
A plant cell is placed in a solution containing 0.1 M glu\cose. If the cell membrane is permeable to glu\cose, what will be the net movement of glu\cose molecules across the membrane?
A. Glu\cose molecules will move from the solution into the cell.
B. Glu\cose molecules will move from the cell into the solution.
C. There will be no net movement of glu\cose molecules.
D. The movement of glu\cose molecules will be equal in both directions.
Question 10
The human nervous system is responsible for transmitting signals between different parts of the body. What is the primary function of the synapse?
A. To transmit signals from one nerve cell to another
B. To receive signals from sensory receptors
C. To regulate muscle contraction
D. To produce hormones
Question 11
A plant cell is placed in a solution with a high concentration of sucrose. What will happen to the cell?
A. The cell will swell and eventually burst
B. The cell will shrink and lose water
C. The cell will remain unchanged
D. The cell will undergo photosynthesis
Question 12
A patient is diagnosed with a bacterial infection caused by Staphylococcus aureus. Which of the following antibiotics is most likely to be effective against this bacterium?
A. Penicillin
B. Erythromycin
C. Ciprofloxacin
D. Vancomycin
Question 13
The process of photosynthesis in plants involves the conversion of light energy into chemical energy. What is the primary byproduct of this process?
A. Glu\cose
B. Oxygen
C. Both glu\cose and oxygen
D. Neither glu\cose nor oxygen
Question 14
The diagram below shows a cross-section of the human eye. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Retina
D. Lens
Question 15
In a typical terrestrial e\cosystem, which of the following biomes is characterized by a high level of biodiversity and a complex network of relationships between species?
A. Tropical Rainforest
B. Temperate Rainforest
C. Desert
D. Grassland

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