Undergraduate
Q. What type of symmetry do most animals in the phylum Cnidaria exhibit? (2023)
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A.
Bilateral symmetry
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B.
Radial symmetry
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C.
Asymmetry
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D.
Spherical symmetry
Solution
Most cnidarians exhibit radial symmetry, allowing them to interact with their environment from all directions.
Correct Answer: B — Radial symmetry
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Q. What type of symmetry is exhibited by organisms in the phylum Cnidaria? (2019)
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A.
Bilateral symmetry
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B.
Radial symmetry
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C.
Asymmetry
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D.
Spherical symmetry
Solution
Organisms in the phylum Cnidaria, such as jellyfish and corals, exhibit radial symmetry.
Correct Answer: B — Radial symmetry
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Q. What type of symmetry is exhibited by organisms in the phylum Platyhelminthes? (2022)
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A.
Bilateral symmetry
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B.
Radial symmetry
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C.
Asymmetry
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D.
Spherical symmetry
Solution
Platyhelminthes, or flatworms, exhibit bilateral symmetry, which is a key characteristic of this phylum.
Correct Answer: A — Bilateral symmetry
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Q. What type of symmetry is exhibited by organisms in the phylum Porifera? (2021)
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A.
Bilateral symmetry
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B.
Radial symmetry
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C.
Asymmetry
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D.
Spherical symmetry
Solution
Organisms in the phylum Porifera, such as sponges, exhibit asymmetry.
Correct Answer: C — Asymmetry
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Q. What type of tissue is responsible for the transport of water in plants? (2019)
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A.
Phloem
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B.
Xylem
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C.
Parenchyma
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D.
Collenchyma
Solution
Xylem is the type of tissue responsible for the transport of water and minerals from the roots to the rest of the plant.
Correct Answer: B — Xylem
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Q. What type of wave is characterized by particle motion being parallel to wave motion? (2023)
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A.
Transverse wave
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B.
Longitudinal wave
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C.
Surface wave
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D.
Standing wave
Solution
In a longitudinal wave, the particle motion is parallel to the direction of wave propagation.
Correct Answer: B — Longitudinal wave
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Q. Which alcohol is commonly known as rubbing alcohol?
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A.
Ethanol
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B.
Isopropanol
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C.
Methanol
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D.
Butanol
Solution
Isopropanol, or 2-Propanol, is commonly referred to as rubbing alcohol.
Correct Answer: B — Isopropanol
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Q. Which alcohol is used as an antifreeze agent? (2022)
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A.
Ethanol
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B.
Methanol
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C.
Isopropanol
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D.
Butanol
Solution
Methanol is commonly used as an antifreeze agent due to its low freezing point.
Correct Answer: B — Methanol
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Q. Which alcohol is used as an antifreeze? (2022)
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A.
Methanol
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B.
Ethanol
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C.
Isopropanol
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D.
Butanol
Solution
Methanol is commonly used as an antifreeze due to its low freezing point.
Correct Answer: A — Methanol
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Q. Which alkaline earth metal has the highest melting point? (2022)
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A.
Beryllium
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B.
Magnesium
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C.
Calcium
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D.
Barium
Solution
Beryllium has the highest melting point among the alkaline earth metals.
Correct Answer: A — Beryllium
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Q. Which alkaline earth metal is used in fireworks for its bright flame? (2021)
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A.
Barium
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B.
Calcium
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C.
Strontium
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D.
Magnesium
Solution
Strontium (Sr) is used in fireworks to produce a bright red flame.
Correct Answer: C — Strontium
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Q. Which amine is a strong base due to steric hindrance? (2022)
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A.
Methylamine
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B.
Ethylamine
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C.
Tert-butylamine
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D.
Aniline
Solution
Tert-butylamine is a strong base due to steric hindrance that prevents protonation, making it more stable.
Correct Answer: C — Tert-butylamine
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Q. Which amine is known for its fishy odor?
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A.
Methylamine
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B.
Ethylamine
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C.
Trimethylamine
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D.
Aniline
Solution
Trimethylamine is known for its strong fishy odor, often associated with decaying fish.
Correct Answer: C — Trimethylamine
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Q. Which amine is used in the preparation of dyes?
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A.
Aniline
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B.
Methylamine
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C.
Dimethylamine
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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)
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A.
Carbohydrates
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B.
Proteins
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C.
Nucleic acids
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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)
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A.
Proteins
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B.
Carbohydrates
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C.
Lipids
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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?
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A.
Nucleic Acids
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B.
Carbohydrates
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C.
Proteins
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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 nucleotides? (2019)
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A.
Proteins
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B.
Carbohydrates
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C.
Lipids
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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 the structure of cell membranes?
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A.
Proteins
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B.
Carbohydrates
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C.
Nucleic Acids
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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)
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A.
Carbohydrates
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B.
Proteins
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C.
Lipids
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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
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A.
Proteins
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B.
Carbohydrates
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C.
Lipids
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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 storage in animals?
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A.
Glycogen
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B.
Cellulose
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C.
Chitin
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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)
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A.
Proteins
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B.
Lipids
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C.
Carbohydrates
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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
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A.
Proteins
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B.
Lipids
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C.
Carbohydrates
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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)
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A.
Fermentation
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B.
Gene cloning
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C.
Cell culture
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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)
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A.
Type A
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B.
Type B
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C.
Type AB
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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?
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A.
Formic acid
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B.
Acetic acid
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C.
Propanoic acid
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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'?
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A.
C3H6O2
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B.
C4H8O2
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C.
C5H10O2
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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?
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A.
Methanoic acid
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B.
Ethanoic acid
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C.
Propanoic acid
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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?
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A.
Formic acid
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B.
Acetic acid
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C.
Citric acid
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D.
Lactic acid
Solution
Acetic acid is commonly known as vinegar.
Correct Answer: B — Acetic acid
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