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Biology Questions

Practice 243 Biology questions with detailed answers and explanations. Free MCQs, PYQs, and mock test questions for NEET, JEE, GATE, SSC and more.

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243
Total Questions
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30
Easy
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209
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4
Hard
Practice by Exam:General Science(74)General Awareness(40)Biology(39)Mathematics and Science(23)Science(22)General Studies(15)General Knowledge(10)General Knowledge and General Awareness(4)

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Q101mediummcqGeneral AwarenessPractice Test2026
Elephantiasis is caused by:
Q102mediummcqGeneral AwarenessSSC CGL2026
Acinonyx jubatus is the scientific name of ________.
Q103mediummcqGeneral StudiesCompetitive Exams2026
Target tissue of insulin is:
Q104mediummcqGeneral AwarenessSSC CGL2026
The pale yellow colour of urine is due to the presence of which pigment?
Q105mediummcqGeneral AwarenessSSC CGL2026
K-selected species are characterised by:
Q106mediummcqScienceSSC CGL2026
Which compound is used in Anti-malarial drug?
Q107mediummcqScienceSSC CGL2026
Name the respiratory organs of insects
Q108mediummcqGeneral ScienceStaff Selection Commission2026
Life on earth began in the oceans almost________ years ago.
Q109mediummcqGeneral ScienceSSC CGL2026
Grevillea Robusta is the scientific name of ______.
Q110mediummcqGeneral ScienceStaff Selection Commission2026
Which of the following diseases is caused by bacteria?
Q111mediummcqGeneral ScienceSSC CGL2026
When a Cuttlefish is described as a Molluscs, it is at which level of classification?
Q112mediummcqGeneral ScienceStaff Selection Commission2026
Which of the following statements about ‘Biological Magnification’ is FALSE?
Q113mediummcqGeneral ScienceUP Police Constable2026
Which of the following organs is capable of removing unused or damaged platelets?
Q114mediummcqGeneral AwarenessCompetitive Exams2026
Which of the following statements is NOT true about angiosperms?
Q115mediummcqGeneral ScienceSSC CGL2026
Which drug is used as an Anti-Anxiety drug?
Q116mediummcqGeneral StudiesCompetitive Exams2026
Darwin and Wallace were both strongly influenced by the book "An Essay on the Principle of Population" written by:
Q117mediummcqGeneral ScienceWBCS Prelims2026
Muscle fatigue experienced after strenuous physical exertion is primarily due to the accumulation of:
Q118mediummcqGeneral KnowledgeCompetitive Exams2026
Which of the following is a nocturnal animal?
Q119mediummcqGeneral ScienceSSC CGL2026
Equus burchellii is the scientific name of ________.
Q120easymcqGeneral AwarenessSSC Selection Post 2021 Matriculation Level2026
Cassowary, kiwi and rhea are examples of which of the following?
Q121mediummcqGeneral StudiesCompetitive Exam2026
What is called the powerhouse of the cell?
Q122easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2026
Which equation shows the balanced reaction of Photosynthesis ?
Q123mediummcqGeneral StudiesCompetitive Exam2026
Which type of muscles do the uterus, iris of the eye, and bronchi contain?
Q124mediummcqScienceSSC CHSL Previous Year Paper2026
What is the other name for Riboflavin?
Q125mediummcqGeneral ScienceCompetitive Exam Paper2026
Pollen is produced in which part of the flower?
Q126mediummcqGeneral ScienceSSC CGL2026
Sorters in the Wool industry sometimes get infected by a bacterium called ______, which causes a fatal blood disease called ‘Sorter’s Disease’.
Q127mediummcqGeneral ScienceCompetitive Exam Paper2026
Which bacteria are oval-shaped or spherical?
Q128mediummcqGeneral ScienceSSC CGL2026
Which of the following is a primary constituent of pearl?
Q129mediummcqGeneral ScienceCompetitive Exams2026
Which of the following disease is caused due to the deficiency of protein?
Q130mediummcqGeneral AwarenessUP Police Constable2026
The vascular tissue that transports water and nutrients in plants is called the ______.
Q131mediummcqGeneral SciencePractice Test2026
What is the branch of science dealing with the study of living things called?
Q132mediummcqGeneral ScienceCompetitive Exam2026
Which one is antibiotic?
Q133mediummcqGeneral AwarenessUP Police Constable2026
Out of the following options, choose the name of a spore-producing plant:
Q134mediummcqGeneral KnowledgeCompetitive Exams2026
For a patient suffering from COPD, the ‘C’ stands for:
Q135mediummcqGeneral StudiesCompetitive Exams2026
Which of the following dense connective tissues serves to connect a bone directly to another bone?
Q136mediummcqGeneral AwarenessPractice Paper2026
Which pigment is responsible for the green colour of plants?
Q137mediummcqGeneral AwarenessSSC CGL2026
Respiratory failure is a condition in which your blood doesn't have enough _______ or has too much _______.
Q138mediummcqGeneral AwarenessStaff Selection Commission2026
The 'Blood Sugar' disease is also known as:
Q139easymcqGeneral ScienceCompetitive Exam2026
_______ is the tissue consisting mainly of fat cells.
Q140mediummcqGeneral ScienceCompetitive Exams2026
ECG records
Q141easymcqGeneral ScienceStaff Selection Commission2026
A plant cell wall is mainly composed of:
Q142mediummcqGeneral AwarenessUP Police Constable2026
In plants/trees, after fertilisation the ovary matures to form the:
Q143mediummcqSciencePractice Paper2026
Complete the analogy:
'Otitis media' : 'ear' :: 'Cataracts' :
Q144mediummcqGeneral StudiesUP Police Assistant Operator Exam2026
Blood clot is formed because of the presence of certain cells in the blood, called:
Q145mediummcqGeneral AwarenessUP Police Constable2026
______ propounded the inheritance of acquired character.
Q146mediummcqGeneral StudiesUP Police Assistant Operator Exam2026
An adult human being normally passes about 1 to _________ of urine in 24 hours.
Q147mediummcqGeneral StudiesUP Police Assistant Operator Exam2026
A resting person normally has a pulse rate between _________ beats per minute.
Q148mediummcqGeneral StudiesUP Police Assistant Operator Exam2026
During fertilization in living beings, fusion of male and female gametes takes place to form a cell called:
Q149mediummcqGeneral ScienceCompetitive Exams2026
Triple Antigen provides immunity to children against all of the following diseases, except:
Q150mediummcqGeneral StudiesUP Police Assistant Operator Exam2026
Nobel prize for inventing Vitamin K in 1943 was given to _________ .
Q151mediummcqGeneral AwarenessSSC Combined Graduate Level Exam2026
Which of the following items has a high fibre content?
Q152mediummcqScience and TechnologyCompetitive Exam2026
Which of the following medicines is widely used in India to treat malaria?
Q153mediummcqGeneral ScienceCompetitive Exam2026
Chloroquinine is a drug to control
Q154mediummcqGeneral ScienceStaff Selection Commission2026
Which drug is used as a Nonsteroidal anti-inflammatory drug?
Q155mediummcqMental Ability and ReasoningUP Police Assistant Operator Exam2026
Choose the word which is different from the rest.
Q156mediummcqGeneral Science & BiologyGeneral Awareness Practice Set2026
Which of the following is the cause of Melanornia (skin cancer)?
Q157mediummcqBiologySSC CGL2026
Which of the following represents the CORRECT scheme of sub-groups at various levels in classification?
Q158mediummcqGeneral ScienceGeneral Awareness Practice Set2026
Which of these is considered to be the hardest substance in the human body?
Q159mediummcqGeneral AwarenessIndian Competitive Exam2026
The following are three processes of reproduction in plants:(a) Vegetative,(b) Sexual,(c) AsexualWhich of them is adopted by algae?
Q160mediummcqGeneral AwarenessSSC CGL2026
Identify the correct statement about cell membranes.
Q161mediummcqGeneral ScienceWBCS Prelims2026
A carcinoma is a specific form of cancer originating from:
Q162mediummcqGeneral Science@NUM: 36SSC CGL2026
Human Beings belong to which category of the ecosystem?
Q163mediummcqGeneral ScienceCompetitive Exams2026
Which type of protein is found in milk?
Q164mediummcqEnvironmental StudiesUPTET 2021 Memory Based Paper 12026
Which of the following organisms possesses chlorophyll?
Q165mediummcqGeneral AwarenessSSC CGL2026
Bambusa dendrocalmus is the scientific name of ________.
Q166mediummcqGeneral AwarenessSSC CGL2026
Which of the following classes has the largest number of animals?
Q167mediummcqGeneral ScienceWBCS Prelims2026
A type of muscle whose movement can be consciously controlled by an organism is known as:
Q168mediummcqGeneral Knowledge and General AwarenessPrepp2026
What are the thin filamentous extensions that the motile bacterial cells have from their cell wall called?
Q169mediummcqEnvironmental StudiesUPTET 2021 Memory Based Paper 12026
What is the end product of anaerobic respiration in plants/yeast?
Q170mediummcqChild Development and PedagogyUPTET Paper 2 (Maths & Science)2026
Cholecystokinin is a hormone which when injected in human body
Q171easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2026
Scurvy is caused due to deficiency of
Q172mediummcqScienceSSC CGL2026
Which of these is not a macronutrient for Plants?
Q173mediummcqSciencePractice Test2026
Which of the following is not a mode of asexual reproduction?
Q174mediummcqGeneral ScienceSSC CGL2026
Which disease is caused due to deficiency of Iodine?
Q175mediummcqGeneral ScienceCompetitive Exam2026
Deficiency of Vitamin D results in:
Q176hardmcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2026
Which scientist developed the 'key' for identification of Animals?
Q177mediummcqGeneral ScienceCompetitive Exams2026
The double-helix structure of DNA was discovered by whom?
Q178mediummcqGeneral ScienceStaff Selection Commission2026
Which of the following is NOT an amphibian?
Q179mediummcqGeneral ScienceCompetitive Exam Previous Year Paper2026
Which organ in the human body produces insulin?
Q180mediummcqGeneral Knowledge and General AwarenessCompetitive Exam2026
Which protein is found in grains?
Q181mediummcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2026
Seedless fruits are of no use in
Q182mediummcqGeneral ScienceSSC CGL2026
Ficus benghalensis is the scientific name of ________.
Q183hardmcqGeneral AwarenessSSC Selection Post 2021 Matriculation Level2026
The inability to effectively use voluntary motor abilities in all aspects of life, from play to structured skilled tasks, is called _______.
Q184mediummcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2026
Fibres of cotton are obtained from
Q185easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2026
Silk is obtained from which stage of silkworm?
Q186mediummcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2026
Vivipary germinations are found in
Q187mediummcqGeneral KnowledgeUP Police Constable Previous Year Paper2026
The blood group system was discovered by __________.
Q188mediummcqGeneral Intelligence & ReasoningWBCS Prelims 20212026
Find the odd one out:
Measles, Rubella, Pneumonia, Rabies
Q189mediummcqGeneral ScienceGeneral Knowledge Competitive Exams2026
Which of the following cell organelles is involved in apoptosis?
Q190mediummcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2026
HIV mainly infects
Q191mediummcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2026
Down’s syndrome is caused due to
Q192mediummcqGeneral ScienceGeneral Knowledge Competitive Exams2026
Which of the following groups represents essential amino acids?
Q193mediummcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2026
Which one of the following plants keep its stomata open during the night and close during the day ?
Q194easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2018
Ginger is the modification of
Q195easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2018
True fruits develop from
Q196easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2018
Plant which reproduces by means of spores instead of seeds is
Q197easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2018
The element, essential for synthesis of protein in plants, is
Q198easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2018
Which one of the following is not a non-communicable disease?
Q199easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2018
Penicillin antibiotic is obtained from
Q200easymcqMathematics and ScienceUPTET Paper 2 (Maths & Science)2018
Which one of the following is not a source of energy?
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