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.
801
Which of the following statements related to respiration is/are correct? (i) Pyruvate is converted into ethanol and carbon dioxide during fermentation in yeast. (ii) Breakdown of pyruvate using oxygen takes place in chloroplasts. (iii) In muscle cells, pyruvate is converted into lactic acid.
Statements (i) and (iii) are correct. Aerobic oxidation of pyruvate occurs in mitochondria, not chloroplasts; muscle cells can convert pyruvate into lactate when oxygen supply is insufficient.
802
Which of the following is required for the breakdown of glucose in human cells to provide energy?
RRB Group-D
16/09/2022 (Shift-II)
2022
✓ Answer:AOxygen
The intended answer is oxygen, which is required for aerobic glucose oxidation. Some ATP can also be generated through anaerobic glycolysis.
803
In humans, air enters through the nostrils and from there flows through the larynx into the lungs. Which of the following ensures that the airway does not collapse in the larynx?
Cartilage supports the airway. The larynx has supporting cartilages, including the ring-shaped cricoid cartilage; the trachea is supported by C-shaped cartilage rings.
804
Through which organ is air taken into the body of human beings?
RRB Group-D
16/09/2022 (Shift-II)
2022
✓ Answer:CNostrils
Nostrils are the external openings through which air normally enters the nasal cavities.
805
Which of the following statements related to respiration is/are correct? (i) Exchange of gases takes place in the alveoli. (ii) The walls of the alveoli contain an extensive network of blood vessels. (iii) In humans, the respiratory pigment is haemoglobin.
All three statements are correct. Alveoli exchange gases with surrounding capillaries, and haemoglobin in red blood cells transports oxygen.
806
Where in a human body can anaerobic respiration take place?
RRB Group-D
30/09/2022 (Shift-II)
2022
✓ Answer:CIn the cytoplasm of cells
Anaerobic glycolysis and lactate formation occur in the cytoplasm, not in mitochondria.
807
The full form of ATP is _____.
RRB Group-D
27/09/2022 (Shift-II)
2022
✓ Answer:CAdenosine Triphosphate
ATP stands for adenosine triphosphate. It is an energy-carrying molecule used in cellular processes.
808
During the process of respiration, how many oxygen molecules combine with one molecule of glucose?
RRB Group-D
08/09/2022 (Shift-II)
2022
✓ Answer:CSix
The overall aerobic respiration equation is C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O + energy. Thus six oxygen molecules are used per glucose molecule.
809
Which of the following are the three-carbon molecules formed during respiration?
RRB Group-D
27/09/2022 (Shift-III)
2022
✓ Answer:CLactic acid and pyruvate
Pyruvate and lactic acid each contain three carbon atoms. Ethanol contains two carbon atoms.
810
Which of the following statements is FALSE?
RRB Group-D
17/08/2022 (Shift-III)
2022
✓ Answer:BIn the mitochondria, acetic acid is broken down utilising oxygen.
The intended mitochondrial substrate is pyruvate, which is converted into acetyl-CoA and further oxidised. The source statement naming acetic acid is incorrect in this context.
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