Railway RRB NTPC 2025 biology practice set The essential biology is designed to help prepare effectively for computer-based tests (CBT) by covering the subjects. This exercise set consists of a wide range of multi-class questions (MCQ) based on previous exam pattern and course requirements. It focuses on major concepts such as human anatomy, physiology, genetics, ecology and plant and animal biology, which ensures the intensive understanding of fundamental principles.
By practicing with this set, candidates can increase their knowledge, improve accuracy, and increase confidence for coming up RRB NTPC 2025 Examination Whether you are modifying important topics or testing your preparation level, this set serves as a valuable resource to excel in CBT exam.
Railway RRB NTPC 2025 Set for Biology Exercise CBT exam
1. Which group of organisms is associated with the breakdown of dead and decay organisms?
a) Consumer
B) manufacturer
C) scavenger
d) disruptive
2. Which of the following provides protein for development?
A) grain
B) Vegetables
C) pulses
d) Apple
3. What is the source of information for protein synthesis in living cells?
A) Nucleus
B) DNA
C) chromosome
d) ribosome
4. Which part of the nephron collects the initial filtering from the blood?
A) kidney vein
B) Boman’s capsules
C) glomerulus
d) Dact assemble
5. A) urea
B) oxygen
C) Carbon Dioxide
D) nitrogen
6. In the human body, which organ of the digestive system emit waste materials?
A) anal
B) large intestine
C) small intestine
d) Appendix
7. Which Indian institute developed the first biodegradable nanoparticle as an alternative to chemical pesticides to protect crops from bacteria and fungal diseases (2022)?
a) Indian Institute of Science, Bengaluru
B) Birla Institute of Technology and Science, Pilani
C) National Institute of Technology, Rourkela
d) Indian Institute of Technology, Kanpur
8. Match the following:
Natural source , Acid
I. Lemon – 1. Methanoic acid
ii. Netal Leaf Sting – 2. citric acid
iii. Tomato – 3. oxalic acid
a) I-2, II-1, III-3
B) I-1, II-2, III-3
C) I-3, II-2, III-1
d) I-3, II-1, III-2
9. Why do plants lack a specific emission system like mammalian kidneys?
A) Because there is a lack of a communication system in plants
B) Because plants only produce gaseous waste which spreads outside
C) they emit through their vegetative parts
d) Because plants do not produce waste
10. Which of the following converts acidic chime into a chile in the digestive system?
A) intestinal juice
B) pancreatic juice
C) Digestive juice
d) bile juice
11. What is rumon?
A) Esophagus like a bag
B) First part of a cow’s duodenum
C) An area of intestine where CUD is formed
D) A cans of stomach for food storage
12. In plants, which important event occurs during the day?
a) co) release
b) O₂ release
C) O ₂ absorption
d) cum release
13. In animals like horses and rabbits, where does cellulose digest by bacterial action?
a) Cecum
B) Esophagus
C) stomach
d) small intestine
14. Which of the following is not a part of the female reproductive system?
A) fallopian tube
B) urethra
C) uterus
D) ovary
15. Which hormone deficiency is responsible for diabetes mellitus?
A) Insulin
B) Thyroxin
C) oxytocin
D) adrenaline
16. What is the emission product of aquatic animals?
A) creatinine
B) urea
C) uric acid
D) ammonia
17. In addition to photosynthesis, what is the main exchange process occurring at night?
A) Oxygen
B) hydrogen
C) Carbon Dioxide
d) water
18. Which of the following is not an endocrine gland in our body?
A) Saliva -Granthi
B) adrenal gland
C) pituitary gland
D) thyroid gland
19. How much energy is released when the terminal bond of ATP breaks using water?
a) 37.2 kj/mol
B) 31.5 KJ/Mole
c) 35.6 kj/mol
d) 30.5 kj/mol
20. Who proposed that life must have originated from simple inorganic substances?
A) JBS Hurden
B) Stanley L. Miller
C) Charles Darwin
d) Gregor Mendel
Railway RRB NTPC 2025 Answer for Biology Exercise for CBT Examination
- d) disruptive
- C) pulses
- B) DNA
- B) Boman’s capsules
- B) oxygen
- B) large intestine
- a) Indian Institute of Science, Bengaluru
- a) I-2, II-1, III-3
- B) Because plants only produce gaseous waste which spreads outside
- d) bile juice
- C) An area of intestine where CUD is formed
- b) O₂ release
- a) Cecum
- B) urethra
- A) Insulin
- D) ammonia
- C) Carbon Dioxide
- A) Saliva -Granthi
- d) 30.5 kj/mol
- A) JBS Hurden
