The molecule shown below is a/an:

1. Amino acid
2. Lipid
3. Polysaccharide
4. Protein

Subtopic:  Lipids |
 82%
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What are thymidine, uridine, and cytidine? 
1. Purines
2. Pyrimidines 
3. Nucleosides 
4. Nucleotides 
Subtopic:  Element Analysis | Nucleic Acid: Nucleotides |
 61%
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Which group of enzymes catalyze the chemical reaction where there is linking together of two compounds? 
1. Lyases 
2. Transferases 
3. Isomerases 
4. Ligases 
Subtopic:  Enzymes Classification |
 90%
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Consider the given two statements:
Assertion (A): The effect of competitive inhibition can be overcome by increasing
the substrate of the enzyme.
Reason (R): The presence of a competitive inhibitor can decrease the rate of
enzyme-catalyzed reaction by blocking the substrate from binding to the enzyme.
 
1. Both (A) and (R) are True and (R) correctly explains (A)
2. Both (A) and (R) are True but (R) does not correctly explain (A)
3. (A) is True but (R) is False
4. (A) is False but (R) is True
Subtopic:  Enzyme Inhibition: Introduction | Enzyme Inhibition |
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Which of the following describes the substrate concentration at which an enzyme-catalyzed reaction achieves half Vmax?
1. Km value 
2. Kcat value
3. pKa value
4. Q10

Subtopic:  Factors Affecting Enzyme Catalysis Reaction |
 94%
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Consider the given two statements 

Assertion (A): In the absence of carbonic anhydrase, carbon dioxide will not react with water to produce carbonic acid. 
Reason (R): Enzymes are the cause for the reactions to take place. 
 
1. Both (A) and (R) are True and (R) correctly explains (A)
2. Both (A) and (R) are True but (R) does not correctly explain (A)
3. (A) is True, (R) is False. 
4. (A) is False, (R) is False. 
Subtopic:  Enzymes |
 65%
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Chitin:
I: is a long-chain polymer of N-acetylglucosamine.
II: is a primary component of cell walls in fungi.
1. Only I is correct
2. Only II is correct
3. Both I and II are correct
4. Both I and II are incorrect
Subtopic:  Carbohydrates: Cellulose, Chitin, Inulin & Agar |
 94%
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Consider the given two statements:
I: All enzymes are proteins.
II: All proteins are enzymes.
1. Only is true.
2. Only II is true.
3. Both I and II are true.
4. Neither I nor II are true.
Subtopic:  Enzymes |
 55%
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Which of the following best describes the role of secondary metabolites in plants?
1. They are primarily involved in growth and development.
2. They are essential for the plant's primary metabolic processes.
3. They play a key role in the plant's defense mechanisms.
4. They are directly involved in photosynthesis.
Subtopic:  Primary & Secondary Metabolites |
 88%
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Which of the following is not a component of a nucleotide?
1. Phosphate group
2. Ribose sugar
3. Fatty acid
4. Nitrogenous base
Subtopic:  Nucleic Acid |
 95%
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