NTSE Biology Application Biology MCQs Set A

Question: Chlorellin, an antibiotic is obtained from

• a) a blue green algae
• b) a green algae
• c) a fungi
• d) a bacteria

Answer: a green algae

Question: 'Liver fluke’ is a example of

• a) Flatworms
• b) Roundworms
• c) Segmented worms
• d) None of these

Answer: Flatworms

Question: Nucleic acid is fragmented by enzyme -

• a) Ligases
• b) Pro teases
• c) Nucleases
• d) Polymerases

Answer: Nucleases

Question: Callus is

• a) material used in healing in phloem
• b) secondary tissue developed by woody plants
• c) an undifferentiated mass of calls
• d) a cultural medium

Answer: an undifferentiated mass of calls

Question: Deficiency of vit-C (Ascorbic acid) is called as -

• a) Pellagra
• b) Anaemia
• c) Scurvy
• d) Rickets

Answer: Scurvy

Question: What does Bt stands for in popular crop Bt cotton

• a) Biotechnology
• b) Bacillus thuringesis
• c) Best type
• d) Best tested

Answer: Bacillus thuringesis

Question: I sonography the waves are produced by

• a) Electric effect
• b) Piezoelectric effect
• c) Sound effect
• d) X - Ray

Answer: Piezoelectric effect

Question: Antibiotics are

• a) drugs that kills the micro - organisms
• b) micro - organisms used to destroy other micro - organisms
• c) drugs derived from microorganism and are used to destroy other micro - organisms
• d) None of these are correct

Answer: drugs derived from microorganism and are used to destroy other micro - organisms

Question: The most common type of hemophilia results from the congenital absence of

• a) Factor II
• b) Factor V
• c) Factor XI
• d) Factor VII

Answer: Factor VII

Question: Which of the following pair of bacteria is involved into step conversion of NH₂ into nitrate -

• a) Azotobacter and Nitrosomonas
• b) Pseudomonas and Nitrobacter
• c) Azotobacter and Achromabacter
• d) Nitrosomanas and Nitrobacter

Answer: Nitrosomanas and Nitrobacter

More Questions.....................

Question: Infective stage of Plasmodium is

• a) Trophozoite
• b) Merozoite
• c) Schizont
• d) Sporozoite

Answer: Sporozoite

Question: Viruses are

• a) obligate parasites
• b) obligate saprophytes
• c) partial parasites
• d) facultative parasites

Answer: obligate parasites

Question: Quinine is extracted from

• a) Bark of Cannamomus
• b) Leaves of Ocimum
• c) Leaves of Cinnamomum
• d) Bark of Cinchona

Answer: Bark of Cinchona

Question: X - rays was discovered by

• a) De veries
• b) Syre
• c) Curtis
• d) Roengten

Answer: Roengten

Question: Typhoid is caused by

• a) Escherichia
• b) Shigella
• c) Salmonella
• d) Giardia

Answer: Salmonella

Question: Rabies is caused by

• a) bacteria and it affects the nervous system
• b) virus and it affects the cardiovascular system
• c) virus and it affected the nervous system
• d) bacteria and it affects the cardiovascular system

Answer: virus and it affected the nervous system

Question: In case of jaundice the target organ is

• a) Spleen
• b) Stomach
• c) Pancreas
• d) Liver

Answer: Liver

Question: Hemophilia is a hereditary disease carried by :

• a) Males and expressed by females
• b) Females and expressed by males
• c) Females and expressed by females
• d) Males and expressed by males

Answer: Females and expressed by males

Question: Match :

            List - I                                      List - II

            a. Deforestation                        1. Vacuoles

            b. Cellular structure                   2. Maize

            c. Pollination                             3. Soil erosion

            d. Nitrogen fixation                    4. Legumes 

• a) 4 1 2 3
• b) 1 2 4 3
• c) 3 1 2 4
• d) 2 3 4 1

Answer: 3 1 2 4

Question: Organ which is most affected by alcohol is

• a) Heart
• b) Cerebrum
• c) Liver
• d) Cerebellum

Answer: Liver

Question: Effects of nicotine on human body include

• a) Release of adrenaline and hence increase blood pressure and heart beat
• b) Stimulation of nerve impulse and muscle relaxation
• c) Decreased fetal growth
• d) All the above are correct

Answer: All the above are correct

Question: The carcinogenic ingredient of tobacco smoke is

• a) Nicotine
• b) Poly cyclic aromatic hydrocarbon
• c) Both A and B are correct
• d) None of these are correct

Answer: Nicotine

Question: Bio patents are granted for

• a) an inventions
• b) a concept or design
• c) both A and B are correct
• d) none of these are correct

Answer: both A and B are correct

Question: Which set is of beneficial insects, to man

• a) Honey bee, Lac insect, cochineal insect
• b) Silk worm, honey bee, wasp
• c) Honey bee, silk worm, cockroach
• d) None of the above

Answer: Honey bee, Lac insect, cochineal insect

Question: Food poisoning is caused by

• a) Clostridium botulism
• b) Clostridium tumiaceae
• c) Solmonella typhosa
• d) Synchytrium endobioticum

Answer: Clostridium botulism

Question: A medicinal plant is

• a) Cryptostegia grandiflora
• b) Coffea arabica
• c) Rauwolfia serpentia
• d) Brassica oleracea

Answer: Rauwolfia serpentia

Question: Botanical name of Bajra is

• a) Triticum aestivum
• b) Pennisetum typhoides
• c) Zea mays
• d) Sorghum vulgare

Answer: Pennisetum typhoides

Question: Wheat grain is

• a) Fruit
• b) Seed
• c) Thalamus
• d) Embryo

Answer: Seed

Question: Morphine is obtained from

• a) Aconitum napellus
• b) Papaver somniferum
• c) Rauwolfia sepentina
• d) Cinchona officialism

Answer: Papaver somniferum

Question: The antigen present in pathogen is.

• a) a specific protein involved in metabolism
• b) polysacchoride synthesized by it is the host
• c) a specific protein or polyacrylamide present on its cot
• d) Any of the two, A or B.

Answer: a specific protein or polyacrylamide present on its cot