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RRB NTPC 100+ Important Biology Questions & Answers 2021


RRB NTPC 2020 CBT 1 exam is starting from 28th December 2020 thus not leaving much time for the candidates to prepare well so we are giving RRB NTPC 100+ Important Biology Questions & Answers 2021 to boost the preparations. Since the exam is approaching soon, so we would advise the aspirants to start their revision for the exam. Also, if you haven’t taken RRB NTPC free mock test by now then attempt the test today so that you get to know your weak areas and where your preparation is lacking.

While revising for RRB NTPC CBT 1 exam make sure that no topic or concept is left un-revised and a proper revision plan should be drafted and a candidate should strictly follow that. As we all know that General Science is quite an important aspect of the RRB NTPC exam, thus we are here with a free Ebook to download comprising 300+ important general science questions for RRB NTPC. This PDF is completely free to download

This Free Ebook/PDF contains:

  • 100+ Chemistry Questions & Answers
  • 100+ Physics Questions & Answers
  • 100+ Biology Questions & Answers

100+ Biology Questions & Answers

1Use of disposable syringes is usually advised to prevent?AIDS
2DNA stands forDeoxyribonucleic Acid
3Blood groups was discovered by –Karl Landsteiner
4Dermatology is the study of?Human Skin
5An emergency hormone is known asAdrenaline
6The smallest bone in the human bodyStapes
7Which hormone control glucose levels in the body?Insulin
8Which part of eye is responsible for its colour?Iris
9What’s the name of tuberculosis’ vaccination?Bacille Calmette-Guérin (BCG)
10Which is the strongest bone in the human body?Femur
11Who gave the theory of evolution?Charles Darwin
12Plants which don’t have a differentiated plant body belong to which group?Thallophyta
13What joins one bone to another boneLigaments
14What’s the liquid part of blood known as?Plasma
15Which of the below has teeth?Mosquito
16Pupil is a part of which organ in the human body?Eye
17Which lens does Human eye have?Convex lens
18What is the primary sex hormone in men?Testosterone
19Jaundice disease affects which part of the human body?Liver
20What is the shape of Bacillus Bacteria?Rod-shaped
21The largest vein in the human bodyVena cava
22Which of the following is not a sensory organ?Brain
23Glucose is a Upper most layer of skin is called?Monosaccharide
24Number of bones a human skull hasEpidermis
25Alcoholic drink contains22
26Genes are made byEthyl Alcohol
27Leoprasy is also known asPolynucleotides
28Endocrine glands are also known asHansen’s disease
29What are Bryophytes?Ductless Glands
30What are Purkinje fibres associated with?Amphibious Plants
31What will be the outcome when fructose is combined with glucose?Heart
32Deficiency of Vitamin C leads toSucrose
33Which is the strongest muscle of the human body?Scurvy
34The study of the chemical reactions required for life to exist and function, usually a focus on the cellular levelMasseter muscle
35Transferrins are glycoproteins that control the level of what in biological fluids?Biochemistry
36Which blood group is the universal donor?Free Iron
37Which disease is caused by the deficiency of Vitamin B1?O-
38Cancer affects which part of the Bone marrow?Beriberi
39Which is the smallest gland in the human body?Multiple myeloma
40Who is the father of Genetics?Pineal gland
41What is the normal fetal heart rate?Gregor Mendel
42What’s the study of fungi?110 to 160 bpm
43Who gave the theory of ‘Survival of the Fittest’?Mycology
44Where is the Thyroid gland located in the Human body?Herbert Spencer
45Which among the following organs contributes to maintaining the balance of body?Neck
46Which chromosome is responsible for a baby boy?Ear
47What is known as ‘Suicidal bags of cell’?Y
48What is the PH value of milk?Lysosome
49The study of Trees is called?6.5
50Which among the following lens is used to correct Presbyopia?Dendrology
51The oral polio vaccine was discovered byBifocal lens
52Which creatures breathes through its skin?Albert Sabin
53What are the products formed during photosynthesis?amphibians
54Food poisoning is caused byGlucose and Oxygen
55Which is the largest gland in the human bodyClostrideam boutulium
56What is the smallest functional unit of a kidney?Liver
57Our bones and teeth are generally made ofNephron
58What is the normal BP of human body?Tricalcium phosphate
59Which is a broad-spectrum antibiotic120/80
60Deficiency of Iodine leads toAmpicillin
61Antihistamines are used to treat?Goitre
62Which vitamin helps in clotting of bloodAllergies
63In which form of blood cancer, white blood cells multiply abnormally and circulate through the bloodVitamin K
64What connects muscles to bones?Leukemia
65What kind of disease is ring worm?Tendons
66DNA is organized into dense protein-DNA complexes calledFungal infection
67A blood disorder in which the body makes an abnormal form or Inadequate amount of haemoglobinChromosomes
68Vitamin A deficiency causesThalassemia
69What is the master gland in the human body?Night Blindness
70What is the main storage site of calcium in the body?Pituitary gland
71What substance are nails made of?Bones
72What is the molecular shape of a DNA molecule?Keratin
73Brain contains microscopic cells calledDouble helix
74Most common blood disorder in humansNeurons
75White blood cells are also called asAnemia
76What kind of blood is carried through artery?Leukocytes
77Which hormone made by pancreas regulates the amount of glucose in the bloodOxygenated blood
78Which layer of the skin contain sweat glandsInsulin
79Most complex organ in the human body isDermis
80Name the soft, spongy tissue found in the centre of bonesBrain
81Deficiency of Vitamin D causesBone Marrow
82The branch of biology concerned with the study of the structure of organisms and their partsRickets
83Dental cavities are caused because of the deficiency of?Anatomy
84The two holes in your nose are called?Fluorine
85The pollination by snails is calledNostrils
86How many vertebrae are there in the human body?Malacophily
87The word gene was firstly used by33
88The study of the geographical distribution of living thingsWilhelm Johannsen
89Which metal is present in hemoglobin?Biogeography
90The study of fossils is calledIron
91System that Influences the function of the body using hormonesPaleontology
92The organ of the human body which stores the carbohydrates in the form of glycogen isEndocrine system
93The PH value of human blood is?Liver
94Area of the brain which controls the movements of the muscles7.4
95Which disease causes legs to swell?Cerebral cortex
96Our skeletal system consists of how many bones?Elephantiasis
97The largest artery in the human bodyAorta
98The study of cognition is calledCognitive biology
99Deficiency of iodine leads toEnlargement of Thyroid Gland
100Glucose is stored in which form by Animals?Glycogen
101Who discovered Blood groups?Karl Landsteiner
102What causes Ascariasis?Round Worm

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