Q. Which amine is used in the preparation of dyes?
-
A.
Aniline
-
B.
Methylamine
-
C.
Dimethylamine
-
D.
Ethylamine
Solution
Aniline is widely used in the preparation of dyes due to its reactivity.
Correct Answer: A — Aniline
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Q. Which biomolecule is involved in catalyzing biochemical reactions? (2022)
-
A.
Carbohydrates
-
B.
Proteins
-
C.
Nucleic acids
-
D.
Lipids
Solution
Proteins, specifically enzymes, catalyze biochemical reactions.
Correct Answer: B — Proteins
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Q. Which biomolecule is involved in the formation of cell membranes? (2020)
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Lipids, particularly phospholipids, are essential for cell membrane structure.
Correct Answer: C — Lipids
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Q. Which biomolecule is known for its role in catalyzing biochemical reactions?
-
A.
Nucleic Acids
-
B.
Carbohydrates
-
C.
Proteins
-
D.
Lipids
Solution
Proteins, specifically enzymes, are known for their role in catalyzing biochemical reactions.
Correct Answer: C — Proteins
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Q. Which biomolecule is made up of fatty acids and glycerol? (2022)
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Lipids are composed of fatty acids and glycerol, forming structures like triglycerides.
Correct Answer: C — Lipids
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Q. Which biomolecule is made up of nucleotides? (2019)
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, are made of nucleotides.
Correct Answer: D — Nucleic acids
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Q. Which biomolecule is primarily involved in energy transfer? (2019)
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Carbohydrates are primarily involved in energy transfer.
Correct Answer: B — Carbohydrates
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Q. Which biomolecule is primarily involved in the structure of cell membranes?
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Nucleic Acids
-
D.
Phospholipids
Solution
Phospholipids are the main components of cell membranes, forming a bilayer.
Correct Answer: D — Phospholipids
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Q. Which biomolecule is primarily responsible for genetic information? (2023)
-
A.
Carbohydrates
-
B.
Proteins
-
C.
Lipids
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, store and transmit genetic information.
Correct Answer: D — Nucleic acids
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Q. Which biomolecule is primarily responsible for storing genetic information? (2023) 2023
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Lipids
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, are responsible for storing and transmitting genetic information.
Correct Answer: D — Nucleic acids
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Q. Which biomolecule is primarily used for energy in living organisms? (2019)
-
A.
Proteins
-
B.
Carbohydrates
-
C.
Nucleic acids
-
D.
Lipids
Solution
Carbohydrates are the primary source of energy for living organisms.
Correct Answer: B — Carbohydrates
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Q. Which biomolecule is primarily used for energy storage in animals?
-
A.
Glycogen
-
B.
Cellulose
-
C.
Chitin
-
D.
Starch
Solution
Glycogen is the primary energy storage molecule in animals.
Correct Answer: A — Glycogen
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Q. Which biomolecule is responsible for storing genetic information? (2023)
-
A.
Proteins
-
B.
Lipids
-
C.
Carbohydrates
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, are responsible for storing and transmitting genetic information.
Correct Answer: D — Nucleic acids
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Q. Which biomolecule is responsible for storing genetic information? (2023) 2023
-
A.
Proteins
-
B.
Lipids
-
C.
Carbohydrates
-
D.
Nucleic acids
Solution
Nucleic acids, such as DNA and RNA, are responsible for storing and transmitting genetic information.
Correct Answer: D — Nucleic acids
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Q. Which biotechnological application is used to produce insulin? (2018)
-
A.
Fermentation
-
B.
Gene cloning
-
C.
Cell culture
-
D.
Bioremediation
Solution
Gene cloning is used to produce insulin by inserting the human insulin gene into bacteria, which then produce insulin.
Correct Answer: B — Gene cloning
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Q. Which blood type is known as the universal donor? (2019)
-
A.
Type A
-
B.
Type B
-
C.
Type AB
-
D.
Type O
Solution
Type O blood is known as the universal donor because it lacks A and B antigens, making it safe for transfusion to any blood type.
Correct Answer: D — Type O
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Q. Which carboxylic acid has the highest boiling point?
-
A.
Formic acid
-
B.
Acetic acid
-
C.
Propanoic acid
-
D.
Butanoic acid
Solution
Butanoic acid has the highest boiling point due to its longer carbon chain.
Correct Answer: D — Butanoic acid
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Q. Which carboxylic acid is commonly known as 'butyric acid'?
-
A.
C3H6O2
-
B.
C4H8O2
-
C.
C5H10O2
-
D.
C2H4O2
Solution
Butyric acid has the molecular formula C4H8O2.
Correct Answer: B — C4H8O2
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Q. Which carboxylic acid is commonly known as formic acid?
-
A.
Methanoic acid
-
B.
Ethanoic acid
-
C.
Propanoic acid
-
D.
Butanoic acid
Solution
Formic acid is the common name for Methanoic acid.
Correct Answer: A — Methanoic acid
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Q. Which carboxylic acid is commonly known as vinegar?
-
A.
Formic acid
-
B.
Acetic acid
-
C.
Citric acid
-
D.
Lactic acid
Solution
Acetic acid is commonly known as vinegar.
Correct Answer: B — Acetic acid
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Q. Which carboxylic acid is found in citrus fruits? (2023)
-
A.
Acetic acid
-
B.
Citric acid
-
C.
Lactic acid
-
D.
Formic acid
Solution
Citric acid is the carboxylic acid found in citrus fruits, contributing to their sour taste.
Correct Answer: B — Citric acid
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Q. Which carboxylic acid is found in vinegar?
-
A.
Citric acid
-
B.
Acetic acid
-
C.
Lactic acid
-
D.
Formic acid
Solution
Acetic acid is the main component found in vinegar.
Correct Answer: B — Acetic acid
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Q. Which carboxylic acid is known for its role in the Krebs cycle? (2019)
-
A.
Citric acid
-
B.
Acetic acid
-
C.
Lactic acid
-
D.
Formic acid
Solution
Citric acid plays a crucial role in the Krebs cycle, which is a key metabolic pathway.
Correct Answer: A — Citric acid
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Q. Which carboxylic acid is known for its use in the production of biodiesel? (2023)
-
A.
Palmitic acid
-
B.
Stearic acid
-
C.
Oleic acid
-
D.
Linoleic acid
Solution
Oleic acid is commonly used in the production of biodiesel due to its favorable properties.
Correct Answer: C — Oleic acid
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Q. Which carboxylic acid is known for its use in the production of nylon? (2019)
-
A.
Adipic acid
-
B.
Citric acid
-
C.
Lactic acid
-
D.
Acetic acid
Solution
Adipic acid is used in the production of nylon, particularly nylon 6,6.
Correct Answer: A — Adipic acid
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Q. Which carboxylic acid is responsible for the sour taste in citrus fruits? (2020)
-
A.
Citric acid
-
B.
Acetic acid
-
C.
Lactic acid
-
D.
Formic acid
Solution
Citric acid is responsible for the sour taste in citrus fruits.
Correct Answer: A — Citric acid
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Q. Which carboxylic acid is responsible for the sour taste in sour milk? (2020)
-
A.
Lactic acid
-
B.
Acetic acid
-
C.
Citric acid
-
D.
Formic acid
Solution
Lactic acid is produced during the fermentation of lactose in sour milk, giving it a sour taste.
Correct Answer: A — Lactic acid
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Q. Which carboxylic acid is used in the production of nylon? (2023)
-
A.
Hexanoic acid
-
B.
Adipic acid
-
C.
Citric acid
-
D.
Acetic acid
Solution
Adipic acid is used in the production of nylon, specifically nylon-6,6.
Correct Answer: B — Adipic acid
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Q. Which checkpoint in the cell cycle ensures that DNA is not damaged before replication? (2023)
-
A.
G1 checkpoint
-
B.
G2 checkpoint
-
C.
M checkpoint
-
D.
S checkpoint
Solution
The G1 checkpoint assesses the cell's size and DNA integrity before it enters the S phase for replication.
Correct Answer: A — G1 checkpoint
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Q. Which class of animals is characterized by having scales and laying eggs on land? (2022)
-
A.
Amphibia
-
B.
Reptilia
-
C.
Aves
-
D.
Mammalia
Solution
Reptiles are characterized by having scales and typically lay eggs on land.
Correct Answer: B — Reptilia
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