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.
821
What happens when we exhale during normal breathing?
RRB Group-D
19/09/2022 (Shift-I)
2022
✓ Answer:BA residual amount of air remains in the lungs
Air remains in the lungs after normal expiration, allowing gas exchange to continue. Strictly, the amount remaining after a normal expiration is functional residual capacity.
822
Name the process through which gaseous exchange takes place across the cell membrane.
RRB Group-D
19/09/2022 (Shift-III)
2022
✓ Answer:DDiffusion
Oxygen and carbon dioxide move across membranes by diffusion, down their partial-pressure gradients.
823
Glucose in the cytoplasm is broken down into pyruvic acid. By which process is this pyruvic acid converted into ethanol and carbon dioxide?
Yeast converts pyruvate into ethanol and carbon dioxide during alcoholic fermentation in the absence of oxygen. Options B and C are identical in the source.
824
Which of the following is the common product produced during aerobic and anaerobic respiration initially in the first step?
RRB Group-D
23/08/2022 (Shift-II)
2022
✓ Answer:APyruvate
Glycolysis is the common initial pathway and produces pyruvate from glucose in the cytoplasm.
825
In humans, the respiratory pigment is:
RRB ALP & Technician
30/08/2018 (Shift-I)
2018
✓ Answer:DHaemoglobin
Haemoglobin is the iron-containing respiratory pigment in red blood cells that carries oxygen from the lungs to tissues.
826
Which life process converts chemical energy into heat energy?
RRB Group-D
01/10/2018 (Shift-I)
2018
✓ Answer:CRespiration
Cellular respiration releases the chemical energy stored in nutrients. Some is captured in ATP and some is released as heat.
827
The breakdown of glucose to pyruvate takes place in the _____ during energy production.
RRB ALP & Technician
30/08/2018 (Shift-III)
2018
✓ Answer:CCytoplasm
Glycolysis occurs in the cytoplasm and converts one glucose molecule into two pyruvate molecules.
828
What is aerobic respiration?
RRB JE
23/05/2019 (Shift-I)
2019
✓ Answer:BRespiration in the presence of oxygen
Aerobic respiration uses oxygen to release energy from food molecules.
829
The trachea is part of which of the following human systems?
RRB NTPC (Stage-I)
31/07/2021 (Shift-I)
2021
✓ Answer:DRespiratory system
The trachea is the windpipe. It conducts air from the larynx toward the bronchi and lungs as part of the respiratory system.
830
Where does the breakdown of pyruvic acid occur, using energy?
RRB Group-D
24/09/2018 (Shift-II)
2018
✓ Answer:CMitochondria
Aerobic oxidation of pyruvate occurs in mitochondria. The wording 'using energy' is imprecise: the overall pathway releases energy that can be captured in ATP.
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