Oligopeptides Definition, Formation and Structure Quiz
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Which of the following oligopeptides is conjugated with drugs to make them more soluble for excretion?
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Glutathione
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Ceruletide
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Tuftsin
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None of the above
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Oligopeptides are short peptides consisting of 2-20 amino acids. Play this informative quiz on Oligopetides definitions, formation, and structure to see how much you know about these. The quiz contains various questions based on the structure and functions of oligopeptides. This quiz will not only gauge your knowledge but will also enhance it. Take the quiz to know more. If you like the quiz, do share it with your peers. All the best!
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- 2.
Decapeptide found in the skin of Hyla caerulea
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Teprotide
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Ceruletide
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Pepstatin
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Leupeptin
Correct Answer
A. CeruletideExplanation
Ceruletide is the correct answer because it is a decapeptide that is found in the skin of Hyla caerulea, which is a species of tree frog. Ceruletide is known for its pharmacological effects on the gastrointestinal system, including stimulating the release of digestive enzymes and increasing the contraction of the gallbladder and pancreas. It is often used in medical treatments for various gastrointestinal disorders.Rate this question:
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- 3.
Ceruletide contains
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8 amino acids
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6 amino acids
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10 amino acids
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4 amino acids
Correct Answer
A. 10 amino acidsExplanation
Ceruletide contains 10 amino acids. Amino acids are the building blocks of proteins, and ceruletide is a peptide hormone that is derived from a larger protein called cholecystokinin. It is composed of a chain of 10 amino acids linked together. These amino acids are essential for the biological activity and function of ceruletide in the body.Rate this question:
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- 4.
The Cyclic peptides taken from carpophores of several different mushroom species is
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Netropsin
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Antipain
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Amanitin
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Glutathione
Correct Answer
A. AmanitinExplanation
Amanitin is a cyclic peptide found in the carpophores of several different mushroom species. It is known for its potent toxicity and is responsible for the majority of mushroom poisoning deaths worldwide. Amanitin inhibits RNA polymerase II, an enzyme involved in the transcription of DNA into RNA, leading to cell death.Rate this question:
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- 5.
Which of the following oligopeptides is produced from Amanita phalloides (death cap)?
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Antipain
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Glutathione
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Phalloidin
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Microcystins
Correct Answer
A. PhalloidinExplanation
Phalloidin is the correct answer because it is an oligopeptide that is produced from Amanita phalloides, commonly known as the death cap mushroom. Phalloidin is a toxic compound that binds to and stabilizes actin filaments, leading to disruption of cellular function and ultimately cell death. It is one of the main toxins responsible for the deadly effects of Amanita phalloides poisoning. Antipain, glutathione, and microcystins are not oligopeptides produced by Amanita phalloides.Rate this question:
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- 6.
Which of the following acts as a protease inhibitor?
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Tuftsin
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Glutathione
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Transferrin
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Leupeptin
Correct Answer
A. LeupeptinExplanation
Leupeptin acts as a protease inhibitor. Proteases are enzymes that break down proteins by cleaving peptide bonds. Leupeptin inhibits the activity of proteases by binding to them and preventing them from carrying out their function. This inhibition helps to regulate protease activity and prevent excessive protein degradation.Rate this question:
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- 7.
Which of the following oligopeptides is synthesized through Ribosomic pathways?
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Microcystins and cyclamides
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Cyclamides and microviridins
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Microcystins and microviridins
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Cyclamides and microviridins
Correct Answer
A. Microcystins and microviridinsExplanation
Microcystins and microviridins are both examples of oligopeptides that are synthesized through ribosomal pathways. Microcystins are cyclic peptides produced by cyanobacteria, and they are known for their hepatotoxic effects. They are synthesized by non-ribosomal peptide synthetases (NRPS) encoded by genes within the cyanobacteria. Microviridins are protease inhibitors produced by cyanobacteria. They inhibit serine proteases and are also synthesized through ribosomal pathways. The genes encoding microviridin biosynthesis are found in the genomes of the cyanobacteria.Rate this question:
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- 8.
Which of the following oligopeptides is isolated from Actinomycetes?
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Pepstatin
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Glutathione
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Antipain
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Leupeptin
Correct Answer
A. LeupeptinExplanation
Leupeptin is a protease inhibitor that is isolated from Actinomycetes, a group of bacteria known for producing various bioactive compounds. It is an oligopeptide with the ability to inhibit proteolytic enzymes, particularly serine and cysteine proteases. Leupeptin is commonly used in laboratory research to prevent protein degradation and proteolysis.Rate this question:
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- 9.
Which of the following is a synthetic nonapeptide?
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Pepstatin
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Microcystins
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Leupeptin
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Teprotide
Correct Answer
A. TeprotideExplanation
Teprotide is a synthetic nonapeptide because it is a peptide composed of nine amino acids that has been artificially created in a laboratory. It is not naturally occurring and is used as a medication for treating hypertension. Pepstatin, Microcystins, and Leupeptin are all naturally occurring peptides and not synthetic nonapeptides.Rate this question:
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- 10.
A tetrapeptide manufactured in the spleen is
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Glutathione
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Teprotide
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Tuftsin
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Pepstatin
Correct Answer
A. TuftsinExplanation
Tuftsin is a tetrapeptide that is manufactured in the spleen. It plays a crucial role in immune system regulation by stimulating the production of certain white blood cells called phagocytes. These phagocytes help in the elimination of foreign substances and pathogens from the body. Therefore, tuftsin is an important peptide involved in the immune response and is produced in the spleen.Rate this question:
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Quiz Review Timeline (Updated): Jan 30, 2024 +
Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.
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Current Version
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Jan 30, 2024Quiz Edited by
ProProfs Editorial Team -
Dec 05, 2022Quiz Created by
Amit Mangal
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