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Quiz 17
Mdcat-past-papers - ETEA Quiz
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Board: ETEA |
321. Secondary structure of protein is found in:
Trypsin
Keratin
Insulin
Glucagon
322. The structure of fibrous protein comprises a polypeptide chain in the form of:
Clusters
Flat uncoiled chains
Spherical
Long strands or fibrils
323. In glycine R is _.
Fatty acid
Ethane
Hydrogen
Methane
324. All enzymes are-
Fibrous proteins
Low molecular weight proteins
Lipoproteins
Globular Proteins
325. Unique three-dimensional shape of the fully folded polypeptide, constitutes:
primary structure of protein
secondary structure of protein
tertiary structure of protein
Quaternary structure of protein
326. A disulphide bridge is found in which biomolecule?
Enzyme
Protein
Carbohydrate
Lipid
327. Two amino acids form a dipeptide through:
Condensation reaction
Ionic bond formation
Hydrolysis
Hydrogen bonding
328. A haemoglobin molecule consists of -------amino acids:
874
474
574
574
329. Proteins are macromolecules formed of units known as amino acids. The amino acids which the variable group R is represented by an H atom is:
Lysine
Phenylalanine
Glycine
Alanine
330. For globular proteins which structure is important?
Primary
Secondary
Tertiary
Quaternary
331. Which level of protein structure can be achieve by two polypeptide chains?
Primary
Secondary
Tertiary
All can be present
332. Proteins with tertiary structure are helpful in:
Carrying messages from glands to target organs
Maintaining epithelial lining of skin
Making the matrix of connective tissue
Helping muscle contraction
333. Which of the following combination of base pair is absent in DNA?
A—T
C—G
A—U
T—U
334. The four types of fundamental biological molecules present in cytoplasm are carbohydrates, proteins, lipids and:
Enzymes
Hormones
Nucleic acids
Alkaloids
335. MD is an example of:
Mononucleotide
Trinucleotide
Dinucleotide
Tetranucleotide
336. ___ are made by ___
Ribosomes nucleus
Proteins mRNA
DNA nucleolus
Chromatin – nucleolus
337. The non-protein part of protein which is covalently and permanently bounded to enzyme is known as:
Prosthetic group
Co-Factor
Co-Enzyme
Activator
338. If the detachable co-factor is an inorganic ion then it is designated as:
Co-factor
Holoenzyme
Prosthetic group
Activator
339. Which enzyme is different from others?
Pepsin
Chymotrypsin
Trypsin
Lactase
340. A co-enzyme constitute about certain ---% portion of entire enzyme:
5%
1%
2%
3%
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