Biology - MOST IMPORTANT IB Security Assistant/Executive Previous Year Questions
Practice real questions from previous year exams of IB Security Assistant/Executive.
📘 Cell Structure and Organelles📚 Nucleolus
Q1
In a cell, which of the following is the active site of Ribosomal RNA synthesis?
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📘 Circulatory System- I (Blood and its Cells)📚 Red Blood Cells
Q2
Which of the following cells in mammals lack a nucleus and hence chromosomes?
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📘 Reproduction in Organisms- VII (Sexual Reproduction in Plants)📚 Unisexual and Bisexual Flowers
Q3
Mustard, rose and petunia are examples of plants with ____________.
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📘 Genetics📚 Misc
Q4
Which of the following traits do NOT follow Mendelian principles of inheritance?
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📘 Circulatory System- I (Blood and its Cells)📚 Red Blood Cells
Q5
Which harmful gas has a greater affinity for haemoglobin than oxygen and thus severely impairs human respiration?
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📘 Genetics📚 Sex Determination in humans
Q6
All children, regardless of whether they are boys or girls, will inherit which of the following chromosomes from their mother?
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📘 Complex Permanent Tissue📚 Xylem and its components
Q7
Which plant tissue is primarily responsible for transporting water and minerals from the soil?
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📘 Micro-Nutrients: Minerals📚 Micro-Nutrient Minerals
Q8
_______ is a rich source of iodine.
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📘 Genetics📚 Sex Determination in humans
Q9
In humans, the determination of a child's sex is influenced by:
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📘 Morphology📚 Photosynthesis- General Facts
Q10
What process allows plants to produce sugars using the sun’s energy and carbon dioxide?
🎯 IB Security Assistant/Executive 2025