Biology - MOST IMPORTANT RRB Ministerial & Isolated Categories Previous Year Questions
Practice real questions from previous year exams of RRB Ministerial & Isolated Categories.
📘 Respiratory System- IV (Cellular Respiration)📚 Kreb's Cycle
Q1
What is the number of carbon dioxide (CO₂) molecules released when one pyruvate molecule is completely broken down aerobically?
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📘 Complex Permanent Tissue📚 Phloem and its components
Q2
Which of the following statements best explains how translocation occurs in phloem?
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📘 Meristematic Tissue📚 Plant Tissue- Meristematic Tissue and its types (Apical, Lateral and Intercalary)
Q3
A plant shows rapid growth at shoot and root tips. What tissue features support this observation?
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📘 Meristematic Tissue📚 Plant Tissue- Meristematic Tissue and its types (Apical, Lateral and Intercalary)
Q4
Which of the following features enables plants to regenerate damaged tissues more efficiently than animals?
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📘 Reproduction in Organisms- VII (Sexual Reproduction in Plants)📚 Gynoecium- Pistil, Stigma, Style, Ovary, etc.
Q5
What is a common feature of the stigma in flowering plants?
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📘 Respiratory System- I (Breathing and Types of Respiration)📚 Breathing - Inhalation (Gas Composition, Diaphragm and Lungs changes)
Q6
During inhalation, which of the following processes occurs?
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📘 Cell Structure and Organelles📚 Vacuoles
Q7
Vacuoles are membrane-bound structures in plant cells. What is their main role in supporting the cell’s function and structure?
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📘 Cell Division📚 Cell division- Meiosis
Q8
What is the role of meiosis in sexual reproduction?
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📘 Connective Tissue📚 Dense Tissue (Ligament and Tendon)
Q9
Which connective tissue connects one bone to another in the human skeletal system?
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📘 Respiratory System- I (Breathing and Types of Respiration)📚 Anaerobic Respiration (in yeast)
Q10
Anaerobic respiration in yeast converts pyruvate into:
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📘 Cell Division📚 Cell division- Mitosis
Q11
Which of the following statements accurately describes the outcome of mitosis?
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📘 Muscular Tissue📚 Skeletal Muscle
Q12
Which of the following is another name for voluntary muscles found in animals?
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📘 Cell Structure and Organelles📚 Nucleus
Q13
In an eukaryotic cell, the thread-like structures carrying genetic information are mainly found in the:
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📘 Macro-Nutrients: Carbohydrates📚 Polysaccharides
Q14
In what form is excess carbohydrate stored in plants?
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📘 Reproduction in Organisms- VII (Sexual Reproduction in Plants)📚 Androecium - Stamen, Anther, Filament, etc.
Q15
Which part of the flower contains the germ cells in plants?
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📘 Endocrine Glands- Brain📚 Pituitary gland- Anterior Pituitary Lobe and secreted hormones
Q16
A child has delayed growth and short stature due to a suspected hormone deficiency controlling body growth. Which gland is likely NOT producing enough of this hormone?
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📘 Cellular Transport📚 Hypotonic, Isotonic and Hypertonic Solutions
Q17
Animal cells are more vulnerable to bursting in hypotonic solutions than plant cells as they _____.
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📘 Epithelial Tissue📚 General Facts
Q18
What is the primary function of epithelial tissue in the animal body?
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📘 Introduction to Plant Tissues📚 Plant Tissue - General Facts
Q19
Why do plants have more dead supportive tissue compared to animals?
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📘 Reproduction in Organisms- VII (Sexual Reproduction in Plants)📚 Fertilization
Q20
After fertilisation, the ovary of the flower develops into a ______, and the ovule develops into a ______.
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