Q. Which organ is responsible for filtering blood in the human body? (2020)
A.
Liver
B.
Heart
C.
Kidneys
D.
Lungs
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Solution
The kidneys are responsible for filtering blood, removing waste products and excess substances to form urine.
Correct Answer: C — Kidneys
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Q. Which organ is responsible for pumping blood throughout the body? (2021)
A.
Lungs
B.
Heart
C.
Liver
D.
Kidneys
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Solution
The heart is responsible for pumping blood throughout the body.
Correct Answer: B — Heart
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Q. Which organ is responsible for the production of insulin?
A.
Liver
B.
Pancreas
C.
Kidneys
D.
Stomach
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Solution
The pancreas produces insulin, which helps regulate blood sugar levels in the body.
Correct Answer: B — Pancreas
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Q. Which organelle contains digestive enzymes to break down waste materials? (2020)
A.
Peroxisome
B.
Lysosome
C.
Vesicle
D.
Ribosome
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Solution
Lysosomes contain digestive enzymes that break down waste materials and cellular debris.
Correct Answer: B — Lysosome
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Q. Which organelle is found only in plant cells and is responsible for photosynthesis?
A.
Mitochondria
B.
Chloroplast
C.
Ribosome
D.
Lysosome
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Solution
Chloroplasts contain chlorophyll and are responsible for converting sunlight into energy through photosynthesis.
Correct Answer: B — Chloroplast
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Q. Which organelle is involved in the digestion of waste materials in the cell? (2023)
A.
Lysosome
B.
Peroxisome
C.
Ribosome
D.
Vesicle
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Solution
Lysosomes contain digestive enzymes that break down waste materials and cellular debris.
Correct Answer: A — Lysosome
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Q. Which organelle is involved in the modification and packaging of proteins? (2020)
A.
Lysosome
B.
Golgi Apparatus
C.
Endoplasmic Reticulum
D.
Nucleus
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Solution
The Golgi apparatus modifies, sorts, and packages proteins for secretion or delivery to other organelles.
Correct Answer: B — Golgi Apparatus
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Q. Which organelle is involved in the synthesis of lipids? (2020)
A.
Rough endoplasmic reticulum
B.
Smooth endoplasmic reticulum
C.
Lysosome
D.
Peroxisome
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Solution
The smooth endoplasmic reticulum is involved in the synthesis of lipids and detoxification processes.
Correct Answer: B — Smooth endoplasmic reticulum
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Q. Which organelle is involved in the synthesis of ribosomal RNA?
A.
Nucleus
B.
Nucleolus
C.
Rough endoplasmic reticulum
D.
Golgi apparatus
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Solution
The nucleolus is responsible for synthesizing ribosomal RNA (rRNA) and assembling ribosomes.
Correct Answer: B — Nucleolus
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Q. Which organelle is known for detoxifying harmful substances in the cell? (2022)
A.
Lysosome
B.
Peroxisome
C.
Ribosome
D.
Nucleus
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Solution
Peroxisomes are organelles that detoxify harmful substances and break down fatty acids.
Correct Answer: B — Peroxisome
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Q. Which organelle is known for its role in digestion within the cell? (2019)
A.
Lysosome
B.
Peroxisome
C.
Mitochondria
D.
Ribosome
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Solution
Lysosomes are known for their role in digestion within the cell, containing enzymes that break down waste materials and cellular debris.
Correct Answer: A — Lysosome
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Q. Which organelle is responsible for energy production in the cell?
A.
Nucleus
B.
Ribosome
C.
Mitochondria
D.
Endoplasmic Reticulum
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Solution
Mitochondria are known as the powerhouse of the cell, where ATP is produced through cellular respiration.
Correct Answer: C — Mitochondria
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Q. Which organelle is responsible for packaging and modifying proteins? (2021)
A.
Lysosome
B.
Golgi apparatus
C.
Nucleus
D.
Chloroplast
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Solution
The Golgi apparatus modifies, sorts, and packages proteins for secretion or delivery to other organelles.
Correct Answer: B — Golgi apparatus
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Q. Which organelle is responsible for photosynthesis in plant cells?
A.
Mitochondria
B.
Chloroplast
C.
Ribosome
D.
Endoplasmic reticulum
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Solution
Chloroplasts are the organelles responsible for photosynthesis, converting light energy into chemical energy.
Correct Answer: B — Chloroplast
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Q. Which organelle is responsible for producing ATP?
A.
Nucleus
B.
Ribosome
C.
Mitochondria
D.
Endoplasmic Reticulum
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Solution
Mitochondria are known as the powerhouse of the cell, where ATP is produced through cellular respiration.
Correct Answer: C — Mitochondria
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Q. Which organism is commonly used as a host for cloning human genes? (2022)
A.
E. coli
B.
Yeast
C.
Mice
D.
All of the above
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Solution
E. coli is the most commonly used host for cloning human genes due to its rapid growth and well-understood genetics, but yeast and mice are also used in specific contexts.
Correct Answer: D — All of the above
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Q. Which organization was established to promote economic cooperation in Europe after World War II? (1993)
A.
NATO
B.
EU
C.
OECD
D.
IMF
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Solution
The European Union (EU) was established to promote economic cooperation and integration among European countries after World War II.
Correct Answer: B — EU
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Q. Which organization was formed in 1995 to promote free trade among member countries? (1995)
A.
NAFTA
B.
WTO
C.
EU
D.
ASEAN
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Solution
The World Trade Organization (WTO) was formed in 1995 to promote free trade among member countries.
Correct Answer: B — WTO
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Q. Which p-block element is essential for the formation of DNA? (2023) 2023
A.
Oxygen
B.
Nitrogen
C.
Phosphorus
D.
Sulfur
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Solution
Phosphorus is essential for the formation of DNA as it is part of the backbone structure.
Correct Answer: C — Phosphorus
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Q. Which p-block element is known for forming a stable +4 oxidation state?
A.
Carbon
B.
Silicon
C.
Germanium
D.
Tin
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Solution
Tin (Sn) is known for forming a stable +4 oxidation state.
Correct Answer: D — Tin
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Q. Which p-block element is known for forming strong covalent bonds?
A.
Nitrogen
B.
Oxygen
C.
Fluorine
D.
All of the above
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Solution
All of the listed elements (Nitrogen, Oxygen, Fluorine) are known for forming strong covalent bonds.
Correct Answer: D — All of the above
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Q. Which p-block element is known for its ability to form multiple allotropes?
A.
Carbon
B.
Phosphorus
C.
Sulfur
D.
Arsenic
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Solution
Phosphorus can exist in several allotropes, including white, red, and black phosphorus.
Correct Answer: B — Phosphorus
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Q. Which p-block element is known for its allotropes including diamond and graphite?
A.
Silicon
B.
Carbon
C.
Phosphorus
D.
Boron
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Solution
Carbon is known for its allotropes, including diamond and graphite.
Correct Answer: B — Carbon
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Q. Which p-block element is known for its allotropes including diamond and graphite? (2020) 2020
A.
Carbon
B.
Silicon
C.
Germanium
D.
Tin
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Solution
Carbon is known for its allotropes, including diamond and graphite.
Correct Answer: A — Carbon
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Q. Which part of speech can describe the manner of an action? (2023)
A.
Adjective
B.
Noun
C.
Adverb
D.
Pronoun
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Solution
An adverb can describe the manner of an action, answering questions like how, when, where, and to what extent.
Correct Answer: C — Adverb
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Q. Which part of speech can function as the subject of a sentence? (2019)
A.
Adverb
B.
Noun
C.
Conjunction
D.
Interjection
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Solution
A noun can function as the subject of a sentence, representing a person, place, thing, or idea.
Correct Answer: B — Noun
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Q. Which part of speech can indicate time, manner, place, or degree? (2023)
A.
Noun
B.
Adverb
C.
Adjective
D.
Conjunction
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Solution
An adverb can indicate time, manner, place, or degree.
Correct Answer: B — Adverb
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Q. Which part of speech can replace a noun in a sentence? (2021)
A.
Adverb
B.
Pronoun
C.
Conjunction
D.
Adjective
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Solution
A pronoun can replace a noun in a sentence.
Correct Answer: B — Pronoun
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Q. Which part of speech expresses strong emotion or surprise? (2019)
A.
Noun
B.
Verb
C.
Interjection
D.
Adverb
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Solution
An interjection expresses strong emotion or surprise.
Correct Answer: C — Interjection
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Q. Which part of speech expresses strong emotion?
A.
Interjection
B.
Noun
C.
Verb
D.
Adjective
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Solution
An interjection expresses strong emotion.
Correct Answer: A — Interjection
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