Biology set 1 MCQs

Practice interactive objective questions for this topic. Select an option to instantly verify your answer and read detailed explanations.

Showing 605 questions
Q.1 Which of the following plants is used to cure cold and cough?
A Tulsi
B Babool
C Jamun
D Arjun
Discuss / Board
Q.2 Which of the following is a man-made ecosystem?
A Aquarium
B Desert
C Forest
D Grassland
Discuss / Board
Q.3 Which branch of ecology deals with the characteristics of ancient environment and their relationship with ancient plants and animals?
A Demecology
B Ichthyology
C Paleoecology
D Mycology
Discuss / Board
Q.4 Digestion of food is an important function of the animal body. In animals like lions, cows, humans, etc., the process involves use of various organs starting from the mouth and ending with the anus. The longest part of this canal is known as the .
A stomach
B large intestine
C oesophagus
D small intestine
Discuss / Board
Q.5 Which organisms are classified as Aves?
A Birds
B Reptiles
C Mammals
D Amphibians
Discuss / Board
Q.6 Filtration of waste products in humans happens in the kidneys. There is a large number of filtration units present inside the kidneys to help them in doing this job. These filtration units are called:
A Bowman's capsules
B nephrons
C capillaries
D alveoli
Discuss / Board
Q.7 Which set of diseases are caused by bacteria?
A Influenza, Dengue, Cholera
B Typhoid, Cholera, Tuberculosis
C Dengue, Malaria, Cholera
D Malaria, Common cold, Influenza
Discuss / Board
Q.8 Which of the following pairs is INCORRECTLY matched?.
A Lactose: Milk
B Starch: Egg yolk
C Fructose: Grapes
D Maltose: Wheat, cornmeal and barley
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Q.9 Match the points under Column A with those under Column B. Column A (Disease) Column B (Organism Responsible) i. Malaria a. Vibrio ii. Diarrhoea b. Salmonella iii. Typhoid c. Rotavirus iv. Cholera d. Plasmodium
A i-b, ii-a, iii-c, iv-d
B i-d, ii-c, iii-b, iv-a
C i-a, ii-c, iii-b, iv-d
D i-a, ii-b, iii-c, iv-d
Discuss / Board
Q.10 Which of the following is NOT a component of a flower?
A Androecium
B Corolla
C Spines
D Calyx
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Q.11 Which acid is used as a souring agent added to vinegar, pickled vegetables, and sauces, and as a raw material for seasoning?
A Citric acid
B Acetic acid
C Tartaric acid
D Formic acid
Discuss / Board
Q.12 Which of the following is a characteristic of both mammals and birds?
A Viviparity
B Pigmented skin
C Pneumatic bones
D Warm blooded
Discuss / Board
Q.13 Which of the following researchers observed densely stained reticular structures surrounding the nucleus (Hint: Figure)?
A William Harvey
B Francis Crick
C Camillo Golgi
D Louis Pasteur
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Q.14 Which among the following is NOT a classification criterion of drugs?
A Chemical structure
B Molecular target
C Behavioural condition
D Pharmacological effect
Discuss / Board
Q.15 Identify a spiral-shaped bacteria.
A Spirillum
B Bacillus
C Coccus
D Vibrio
Discuss / Board
Q.16 How many chambers are there in the heart of fishes?
A Four
B Three
C One
D Two
Discuss / Board
Q.17 Which of the following statements best defines the monoecious?
A A plant having both male and female reproductive organs on the same individual
B A flower with dithecous
C A flower with gynoecium only
D A flower with androecium only
Discuss / Board
Q.18 Which of the following characteristics is NOT of Aves?
A Presence of teeth
B Feathers
C Hollow bones
D Warm-bloodedness
Discuss / Board
Q.19 What are the five Fs of indirect transmission?
A Flies, fingers, fomites, food and fluid
B Fruit, fingers, flu, food and fluid
C Flies, fingers, friends, food and fruit
D Flies, fingers, fomites, food and fruit
Discuss / Board
Q.20 By which of the following methods do red algae reproduce?
A Grafting
B Cutting
C Micropropagation
D Fragmentation
Discuss / Board
Q.21 Name a common electrolyte disorder that occurs when the amount of sodium in your blood becomes abnormally low.
A Hyperkalemia
B Hypokalemia
C Hyponatremia
D Hypernatremia
Discuss / Board
Q.22 Which is a serious contagious bacterial infection that usually affects the mucous membranes of the nose and throat?
A Meningococcal
B Diphtheria
C Shigellosis
D Chlamydia
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Q.23 The organisms that do not have a defined nucleus or organelles are classified in to Kingdom.
A Fungi
B Protista
C Monera
D Plantae
Discuss / Board
Q.24 Which of the following does NOT belong to the category of Porifera?
A Hydra
B Sycon
C Spongilla
D Euplectella
Discuss / Board
Q.25 Which of the following classes includes the family of turtles?
A Chondrichthyes
B Reptilia
C Amphibia
D Aves
Discuss / Board
Q.26 What is the reason for the similar size of the vascular bundle in monocot leaves?
A Cubical venation
B Radial venation
C Rectangular venation
D Parallel venation
Discuss / Board
Q.27 Which of the following is an inactivated (killed) polio vaccine developed in 1952?
A Salk vaccine
B Imvanex vaccine
C HDCV vaccine
D TAB vaccine
Discuss / Board
Q.28 Which of the following is responsible for the red colour of beetroot?
A Curcumin
B Betanin
C Beta carotene
D Lycopene
Discuss / Board
Q.29 What is the name of the inflammatory condition that causes cracks, crusting and scaling at the corners of the mouth due to vitamin B2 deficiency?
A Scurvy
B Pellagra
C Angular cheilitis
D Rickets
Discuss / Board
Q.30 Which essential amino acid enhances calcium absorption and also plays an important role in the formation of collagen?
A Leucine
B Valine
C Tryptophan
D Lysine
Discuss / Board

Master Biology set 1 for All Competitive Exams 2026

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