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.
RRB JE Biology MCQ
Start practicing RRB JE Biology PYQs with answers and explanations and strengthen your General Science preparation for the RRB JE exam.
91
Which cell organelle detoxifies toxins and drugs?
A
Ribosomes
B
Mitochondria
C
Golgi bodies
D
Endoplasmic reticulum
▼ View Solution
✓ Answer:
D
Endoplasmic reticulum
The endoplasmic reticulum, especially smooth ER, participates in detoxification of drugs and toxins.
92
Cytoplasm is a jelly-like fluid that is present between:
A
Nucleus and organelles
B
Fats and tissues
C
Nerves and cells
D
Nucleus and cell membrane
▼ View Solution
✓ Answer:
D
Nucleus and cell membrane
Cytoplasm occupies the region between the cell membrane and nucleus and contains many cellular organelles.
93
Name the phase of mitosis during which the chromosomes of the dividing cell lie on equatorial plate?
A
Anaphase
B
Telophase
C
Metaphase
D
Prophase
▼ View Solution
✓ Answer:
C
Metaphase
During metaphase, condensed chromosomes align at the equatorial plate before being separated.
94
Why are mitochondria considered as a 'weird' organelle?
A
Because they can digest microorganisms
B
Because they contain ribosomes and DNA
C
Because they are the power-house of the cell
D
Because they are the store of cellular contents
▼ View Solution
✓ Answer:
B
Because they contain ribosomes and DNA
Mitochondria are unusual because they possess their own DNA and ribosomes in addition to being semi-autonomous energy-producing organelles.
95
Alignment of chromosomes in the center of the cell at the equatorial plate constitutes which stage of mitosis?
A
Telophase
B
Prophase
C
Metaphase
D
Anaphase
▼ View Solution
✓ Answer:
C
Metaphase
During metaphase, chromosomes align at the cell's equatorial or metaphase plate.
96
Who discovered a cell?
A
Theodor Schwann
B
Robert Hooke
C
Matthias Schleiden
D
Rudolf Virchow
▼ View Solution
✓ Answer:
B
Robert Hooke
Robert Hooke observed cork under a microscope in 1665 and introduced the term 'cell' for the small compartments he saw.
97
Apart from nucleus of the cell, which two cell organelles have their own DNA and ribosomes?
A
Plastids and Mitochondria
B
Mitochondria and Lysosomes
C
Plastids and Golgi bodies
D
Mitochondria and Golgi bodies
▼ View Solution
✓ Answer:
A
Plastids and Mitochondria
Plastids and mitochondria contain their own DNA and ribosomes and are partly independent of the nuclear genome.
98
Which of the following cell organelles are responsible for transfer, packaging, and modification of protein and lipids in vesicles?
A
Rough endoplasmic reticulum
B
Smooth endoplasmic reticulum
C
Ribosome
D
Golgi apparatus
▼ View Solution
✓ Answer:
D
Golgi apparatus
The Golgi apparatus modifies, sorts and packages proteins and lipids into vesicles for transport or secretion.
99
In plant cells, vacuoles are membrane-bound structures. What is their main role in supporting the function and structure of a cell?
A
Protein Synthesis
B
Controlling cell division
C
DNA replication
D
Providing rigidity and turgidity to the cell
▼ View Solution
✓ Answer:
D
Providing rigidity and turgidity to the cell
Plant cell vacuoles help maintain turgidity and store substances such as water, salts, minerals, pigments and proteins.
100
Which of the following cellular components are known as the protein factories of a cell?
A
Ribosomes
B
Chloroplasts
C
Mitochondria
D
Golgi bodies
▼ View Solution
✓ Answer:
A
Ribosomes
Ribosomes are the cellular structures where amino acids are assembled into proteins.
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