The first paper will cover 40 questions from General Awareness subject from various sections such as History, Polity, Geography, Chemistry, Biology, Physics, etc. In the Biology section especially, at least 4-6 questions are put up from topics including Animal parts and their function, Human body parts and their function, etc.
Check also: RRB NTPC Exam Analysis 2020 (1st Shift) - 28th Dec
Here is the list of important topics for the Biology section in the RRB NTPC Exam:
Topics |
Human body parts and their functions |
Photosynthesis |
Plant parts and their functions |
Nitrogen Cycle |
Plant and Animal Kingdom |
Difference between Mitosis and Meiosis |
Environment |
Flora and Fauna |
Diseases and their prevention treatment and cure |
Human Digestive System |
Blood and its components |
Cells |
Evolution |
Heredity |
Biomolecules |
Students can download Biology PDFs in English and Hindi languages from the direct link given below:
Topic | Download PDF (Hindi/ English) |
100+ Biology Questions PDF | |
100+ जीव विज्ञान के प्रश्न |
Here is a sample of 100+ Biology Questions PDF
Q 1. How much quantity of salt is found in human body?
Solution:
* Human body contains around 0.4% salt of body’s weight.
* Human body occupy many salts, but sodium chloride is the most common. Excessive consumption of salt can lead to high blood pressure and stomach cancer like disorders.
* Salt in body do diverse vital functions like enhancing quality of blood, transmission of nerve signals, contract or expand muscles, for maintaining fluid balance in body etc.
Q 2. Who produces “like cures likes” homeopathic principle?
Solution:
* ‘Like Cure Like’ principle was produced by Samuel Hahnemann.
* He produced Pseudoscientific system of Alternative medicine called Homeopathy.
* The ‘Like Cure Like’ principle according to him refers that "that which can produce a set of symptoms in a healthy individual, can treat a sick individual who is manifesting a similar set of symptoms." This principle became foundational principle of Homeopathy.
* Hahnemann published essay ‘On the Effects of Coffee from Original Observations’ in 1803, in which he propounded the Coffee theory of disease which states that many diseases are caused by coffee.
Q 3. Which of the following is an example for marsupials?
Solution:
- Marsupials are mammalian infraclass members. Kangaroo is an example of Marsupials. These are endemic to Australia and America.
- The most distinctive feature of this class is that they carry the young ones in a pouch.
- kangaroos, wallabies, koalas, phalangeriformes, opossums, wombats, and Tasmanian devils are most common examples of this class. dunnarts, potoroos and cuscuses are some not so common marsupials. ● The word marsupial comes from marsupium, the technical term for the abdominal pouch. It, in turn, is borrowed from Latin.
Q 4. Which of the following is vertebrate animal?
Solution:
* Vertebrate animals are those animals included in any animal of the subphylum Vertebrata. They have backbones, from which they derive their name.
* They also poses a Muscular system and a central nervous system.
* The subphylum is one of the best known of all groups of animals. Its members include the classes Agnatha, Chondrichthyes, and Osteichthyes, Amphibia; Reptilia; Aves ; and Mammalia.
Q 5. Which of the following bacteria is a nitrogen fixing bacteria?
Solution:
- Salmonella is bacteria typically live in animal and human intestines and are shed through faeces. Humans become infected through contaminated water or food.
- Escherichia coli are bacteria found in the atmosphere, food, and intestines of human and animals.
- Pseudomonas is a type of bacteria, which can create infections in the body under certain circumstances.
- Rhizobium is a nitrogen fixating bacteria. Nitrogen fixation is a process by which molecular nitrogen in the air is converted into ammonia or related nitrogenous compounds in soil.
Q 6. UHT process is used for the production of:
Solution:
- UTH or Ultra High Temperature Bacteria processing is used in production of Milk. It is basically a food processing technology that sterilizes milk.
- UHT milk was first developed in the 1960s and now a significant percentage of milk in USA is UHT treated organic food.
- The UTH process is also used for fruit juices, cream, soy milk, yogurt, wine, soups, honey, and stews.
- UHT milk's protein structure is different from that of pasteurized milk, which prevents it from separating in cheese making.
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