Practice RRB JE Biology PYQ questions from previous Railway Recruitment Board examinations. This Biology question collection is designed for candidates preparing for the RRB JE examination and covers important Biology concepts relevant to the General Science section.
This collection includes RRB JE Physics PYQ, previous year questions, and important practice questions designed to help candidates revise important Physics concepts and become familiar with the types of questions asked in Railway examinations.
The RRB JE Biology PYQ collection includes previous year questions with the correct answer and clear explanation, helping you understand important concepts and revise Biology in an exam-oriented way. Solving previous year questions can also help you become familiar with the types of questions asked in RRB JE examinations.
Practice questions from important areas of The RRB JE Biology Question, including Cell, Tissues, Human Body, Plant Biology, Animal Kingdom, Classification, Life Processes, Nutrition, Respiration, Reproduction, Diseases, Genetics, Ecology and other important Biology concepts.
Whether you are looking for RRB JE Biology PYQ, RRB JE Biology Questions, RRB JE Biology MCQs, or RRB JE Biology Previous Year Questions with Answers, this collection provides focused practice for your Railway exam preparation.
Start practicing RRB JE Biology PYQs with answers and explanations and strengthen your General Science preparation for the RRB JE exam.
811
In which cell organelle does the first step of cellular respiration, forming a three-carbon molecule called pyruvate, take place?
RRB Group-D
27/09/2022 (Shift-I)
2022
✓ Answer:CCytoplasm
Glycolysis occurs in the cytosol of the cytoplasm and breaks one glucose molecule into two pyruvate molecules. The source loosely calls the cytoplasm an organelle.
812
What part of the respiratory system prevents the air passage from collapsing?
RRB Group-D
17/08/2022 (Shift-I)
2022
✓ Answer:BRings of cartilage
Cartilage rings support the trachea and keep its lumen open during breathing.
813
Which of the following statements is INCORRECT?
RRB Group-D
14/09/2022 (Shift-II)
2022
✓ Answer:CThe respiratory pigment is present in the white blood corpuscles.
Haemoglobin, the human respiratory pigment, is found in red blood corpuscles, not white blood corpuscles.
814
Which of the following ensures that the air passage does NOT collapse during respiration?
RRB Group-D
27/09/2022 (Shift-I)
2022
✓ Answer:DRings of cartilage
The cartilage rings of the trachea prevent collapse while allowing some flexibility.
815
Which of the following statements is correct with reference to aerobic respiration?
RRB Group-D
12/09/2022 (Shift-I)
2022
✓ Answer:BIn mitochondria, one molecule of pyruvate breaks down to give three molecules of carbon dioxide.
Complete oxidation of one three-carbon pyruvate molecule produces three carbon dioxide molecules through pyruvate oxidation and the citric acid cycle. Aerobic respiration requires oxygen.
816
All the statements below regarding inhalation in humans are correct except one. Which is NOT correct? A. Ribs move inward and diaphragm is raised. B. Ribs are lifted up and diaphragm becomes flat. C. Chest cavity becomes larger. D. Air is sucked into the lungs.
RRB Group-D
26/08/2022 (Shift-III)
2022
✓ Answer:AA
During inhalation, the diaphragm contracts and flattens, and the ribs move upward and outward. Thoracic volume increases and air enters the lungs. Statement A describes the opposite movement.
817
How many times does an adult human breathe per minute at rest?
RRB Group-D
12/09/2022 (Shift-I)
2022
✓ Answer:C15–18
The source gives about 15–18 breaths per minute as the typical resting rate. The usual adult reference range is broader, commonly 12–20 breaths per minute.
818
How many times on average does an adult human being at rest breathe in and out in a minute?
RRB Group-D
26/08/2022 (Shift-IV)
2022
✓ Answer:B15–18 times
The source gives about 15–18 breaths per minute as a typical resting value. Resting adult breathing rates vary within a broader normal range.
819
Aerobic respiration requires the presence of _____.
RRB Group-D
30/08/2022 (Shift-III)
2022
✓ Answer:DOxygen
Aerobic respiration uses oxygen to support the complete oxidation of food molecules, releasing energy and producing carbon dioxide and water.
820
What is the reason that the lungs have alveoli?
RRB Group-D
07/10/2022 (Shift-III)
2022
✓ Answer:DTo increase the surface area
The many alveoli provide a large surface area for efficient exchange of oxygen and carbon dioxide between air and blood.
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