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.
831
The trachea is a part of the _____ system of the human body.
RRB NTPC (Stage-I)
05/03/2021 (Shift-II)
2021
✓ Answer:BRespiratory
The trachea is a respiratory passage that connects the larynx to the bronchi.
832
The incomplete breakdown of a substance in the absence of oxygen is called _____.
RRB Group-D
05/10/2018 (Shift-II)
2018
✓ Answer:BAnaerobic respiration
In school-level terminology, anaerobic respiration describes energy release without oxygen, often through incomplete breakdown of glucose by fermentation.
833
Exchange of respiratory gases occurs through _____ in the lungs.
RRB JE
28/05/2019 (Shift-III)
2019
✓ Answer:CAlveoli
Oxygen and carbon dioxide diffuse across the thin walls of the alveoli and their surrounding capillaries.
834
When our muscle cells lack oxygen during energy production, the six-carbon molecule is converted into a _____-carbon molecule.
RRB Group-D
18/09/2018 (Shift-III)
2018
✓ Answer:C3
Six-carbon glucose is broken down into three-carbon pyruvate; in oxygen-limited muscle cells, pyruvate is converted into three-carbon lactate.
835
The maximum amount of air that can be exhaled after maximal inspiration is called _____.
RRB JE
27/05/2019 (Shift-I)
2019
✓ Answer:DLung volume
The source key gives D, lung volume. The precise physiological term is vital capacity, which is not offered among the options.
836
During inhalation, lungs are filled with air due to:
RRB Group-D
31/10/2018 (Shift-I)
2018
✓ Answer:CLung inflation
The diaphragm contracts and the thoracic cavity expands during inhalation, lowering pressure and causing the lungs to inflate as air enters.
837
A protruding part of the throat associated with the growing voice box in boys is called:
RRB NTPC (Stage-I)
11/04/2016 (Shift-I)
2016
✓ Answer:DAdam's apple
The Adam's apple is the visible prominence of the thyroid cartilage of the larynx. It often becomes more prominent during male puberty.
838
Exhalation occurs by _____.
RRB Group-D
19/09/2018 (Shift-III)
2018
✓ Answer:BLung deflation
During quiet exhalation, the diaphragm relaxes and elastic recoil reduces lung volume, pushing air out.
839
Our lungs contain _____ cells.
RRB NTPC (Stage-I)
29/04/2016 (Shift-II)
2016
✓ Answer:D300 million
The source key gives 300 million. The question appears to refer to the traditional estimate of alveoli, not the total number of lung cells; alveoli are multicellular air sacs.
840
The breathing process involves _____.
RRB Group-D
30/10/2018 (Shift-III)
2018
✓ Answer:AInspiration and expiration
Breathing consists of inspiration, when air enters the lungs, and expiration, when air leaves.
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