Q. Which of the following kingdoms includes organisms that can be both autotrophic and heterotrophic? (2019)
-
A.
Monera
-
B.
Fungi
-
C.
Plantae
-
D.
Protista
Solution
The kingdom Protista includes organisms that can be both autotrophic and heterotrophic.
Correct Answer:
D
— Protista
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Q. Which of the following kingdoms includes organisms that can be both unicellular and multicellular? (2022)
-
A.
Monera
-
B.
Fungi
-
C.
Plantae
-
D.
Protista
Solution
The kingdom Protista includes both unicellular and multicellular organisms.
Correct Answer:
D
— Protista
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Q. Which of the following kingdoms includes unicellular organisms? (2020)
-
A.
Animalia
-
B.
Plantae
-
C.
Fungi
-
D.
Protista
Solution
The kingdom Protista includes unicellular organisms.
Correct Answer:
D
— Protista
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Q. Which of the following levels of organization is the highest? (2020)
-
A.
Cell
-
B.
Tissue
-
C.
Organ
-
D.
Organism
Solution
The organism level of organization is the highest, as it encompasses all systems and structures functioning together as a single living entity.
Correct Answer:
D
— Organism
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Q. Which of the following materials has the highest tensile strength? (2020)
-
A.
Steel
-
B.
Aluminum
-
C.
Copper
-
D.
Rubber
Solution
Steel has the highest tensile strength among the given materials.
Correct Answer:
A
— Steel
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Q. Which of the following materials has the highest thermal conductivity? (2020)
-
A.
Copper
-
B.
Wood
-
C.
Glass
-
D.
Air
Solution
Copper has the highest thermal conductivity among the given materials.
Correct Answer:
A
— Copper
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Q. Which of the following materials is a common intrinsic semiconductor? (2020)
-
A.
Copper
-
B.
Silicon
-
C.
Aluminum
-
D.
Iron
Solution
Silicon is a common intrinsic semiconductor used in electronic devices.
Correct Answer:
B
— Silicon
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Q. Which of the following materials is a good conductor of electricity? (2019)
-
A.
Rubber
-
B.
Copper
-
C.
Glass
-
D.
Wood
Solution
Copper is a good conductor of electricity due to its high number of free electrons.
Correct Answer:
B
— Copper
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Q. Which of the following materials is commonly used as a dielectric in capacitors? (2023)
-
A.
Copper
-
B.
Glass
-
C.
Iron
-
D.
Aluminum
Solution
Glass is commonly used as a dielectric material in capacitors due to its high dielectric constant and insulating properties.
Correct Answer:
B
— Glass
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Q. Which of the following materials is considered a ferromagnetic material? (2021)
-
A.
Copper
-
B.
Aluminum
-
C.
Iron
-
D.
Gold
Solution
Iron is a ferromagnetic material, which means it can be magnetized and retains its magnetic properties.
Correct Answer:
C
— Iron
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Q. Which of the following materials is considered a good conductor of electricity? (2022)
-
A.
Rubber
-
B.
Copper
-
C.
Wood
-
D.
Glass
Solution
Copper is a good conductor of electricity due to its low resistance and high conductivity.
Correct Answer:
B
— Copper
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Q. Which of the following metals has the highest standard reduction potential? (2019)
-
A.
Gold
-
B.
Silver
-
C.
Copper
-
D.
Zinc
Solution
Gold has the highest standard reduction potential among the given metals.
Correct Answer:
A
— Gold
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Q. Which of the following methods is considered a permanent form of contraception? (2022)
-
A.
IUD
-
B.
Vasectomy
-
C.
Condoms
-
D.
Birth control pills
Solution
Vasectomy is a surgical procedure that provides a permanent form of contraception for males.
Correct Answer:
B
— Vasectomy
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Q. Which of the following microbes is commonly used in the fermentation of food? (2021)
-
A.
Bacteria
-
B.
Viruses
-
C.
Fungi
-
D.
All of the above
Solution
All of the mentioned microbes can be involved in fermentation processes, but bacteria and fungi are the most common.
Correct Answer:
D
— All of the above
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Q. Which of the following microbes is commonly used in the fermentation of yogurt? (2021)
-
A.
Lactobacillus
-
B.
Escherichia coli
-
C.
Staphylococcus
-
D.
Bacillus subtilis
Solution
Lactobacillus is the primary bacterium used in the fermentation process to produce yogurt.
Correct Answer:
A
— Lactobacillus
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Q. Which of the following microbes is used in the production of antibiotics? (2020)
-
A.
Bacteria
-
B.
Viruses
-
C.
Fungi
-
D.
Protozoa
Solution
Fungi, particularly the genus Penicillium, are used in the production of antibiotics like penicillin.
Correct Answer:
C
— Fungi
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Q. Which of the following microbes is used in the production of biofertilizers? (2022)
-
A.
Rhizobium
-
B.
Streptococcus
-
C.
Clostridium
-
D.
Bacillus cereus
Solution
Rhizobium is a bacterium that forms symbiotic relationships with legumes and is used in biofertilizers for nitrogen fixation.
Correct Answer:
A
— Rhizobium
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Q. Which of the following microbes is used in the production of biofuels? (2023)
-
A.
Bacteria
-
B.
Viruses
-
C.
Fungi
-
D.
All of the above
Solution
Bacteria are commonly used in the production of biofuels through fermentation processes.
Correct Answer:
A
— Bacteria
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Q. Which of the following microbes is used in the production of insulin? (2023)
-
A.
Bacteria
-
B.
Viruses
-
C.
Fungi
-
D.
Algae
Solution
Genetically modified bacteria are used in the production of insulin for diabetes treatment.
Correct Answer:
A
— Bacteria
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Q. Which of the following microbes is used in the production of yogurt? (2021)
-
A.
Lactobacillus
-
B.
Escherichia coli
-
C.
Staphylococcus
-
D.
Bacillus subtilis
Solution
Lactobacillus is the primary bacterium used in the fermentation of milk to produce yogurt.
Correct Answer:
A
— Lactobacillus
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Q. Which of the following muscles is responsible for the flexion of the forearm? (2019)
-
A.
Biceps brachii
-
B.
Triceps brachii
-
C.
Deltoid
-
D.
Pectoralis major
Solution
The biceps brachii muscle is primarily responsible for flexing the forearm at the elbow.
Correct Answer:
A
— Biceps brachii
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Q. Which of the following mutations does NOT change the amino acid sequence of a protein? (2022)
-
A.
Missense mutation
-
B.
Nonsense mutation
-
C.
Silent mutation
-
D.
Frameshift mutation
Solution
A silent mutation does not change the amino acid sequence of a protein despite a change in the DNA sequence.
Correct Answer:
C
— Silent mutation
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Q. Which of the following organelles contains chlorophyll? (2022)
-
A.
Mitochondria
-
B.
Chloroplast
-
C.
Nucleus
-
D.
Golgi apparatus
Solution
Chloroplasts contain chlorophyll, which is essential for photosynthesis in plant cells.
Correct Answer:
B
— Chloroplast
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Q. Which of the following organelles contains digestive enzymes? (2023)
-
A.
Peroxisome
-
B.
Lysosome
-
C.
Ribosome
-
D.
Vesicle
Solution
Lysosomes contain digestive enzymes that break down waste materials and cellular debris.
Correct Answer:
B
— Lysosome
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Q. Which of the following organelles is involved in photosynthesis? (2022)
-
A.
Mitochondria
-
B.
Chloroplast
-
C.
Ribosome
-
D.
Golgi apparatus
Solution
Chloroplasts are the organelles responsible for photosynthesis in plant cells, converting light energy into chemical energy.
Correct Answer:
B
— Chloroplast
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Q. Which of the following organisms can reproduce both sexually and asexually? (2023)
-
A.
Fungi
-
B.
Starfish
-
C.
Hydra
-
D.
All of the above
Solution
Many organisms, including fungi, starfish, and Hydra, can reproduce both sexually and asexually depending on environmental conditions.
Correct Answer:
D
— All of the above
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Q. Which of the following organisms is an example of a cnidarian? (2021)
-
A.
Jellyfish
-
B.
Earthworm
-
C.
Lobster
-
D.
Starfish
Solution
Jellyfish belong to the phylum Cnidaria, which is known for its stinging cells called cnidocytes.
Correct Answer:
A
— Jellyfish
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Q. Which of the following organisms is classified as a prokaryote? (2019)
-
A.
Yeast
-
B.
E. coli
-
C.
Mushroom
-
D.
Paramecium
Solution
E. coli is a prokaryotic organism, while the others are eukaryotic.
Correct Answer:
B
— E. coli
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Q. Which of the following organisms is classified under the kingdom Protista? (2022)
-
A.
Mushrooms
-
B.
Euglena
-
C.
Lichens
-
D.
Corals
Solution
Euglena is classified under the kingdom Protista, which includes diverse unicellular organisms.
Correct Answer:
B
— Euglena
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Q. Which of the following organisms is known for its ability to reproduce both sexually and asexually? (2021)
-
A.
Yeast
-
B.
Mammals
-
C.
Birds
-
D.
Reptiles
Solution
Yeast can reproduce both sexually through spores and asexually through budding.
Correct Answer:
A
— Yeast
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