5551 to 5600 MCQs for Lab Technician and Technologist Exam Preparation
5000 Plus MCQs for Lab Technician and Technologists are designed to test the knowledge and proficiency of laboratory professionals who work in the field of clinical laboratory science. These questions cover a wide range of topics related to laboratory science, including anatomy, physiology, microbiology, chemistry, and hematology.
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Questions 5551 to 5600
- Lymphocytes are responsible for the formation of
- Serum
- Plasma
- Antibody✔
- Calcium
- Platelets contain an enzyme which has important role in clotting in blood. This enzyme is known as
- Cholinesterase
- Transaminase
- Decarboxylase
- Thrombokinase✔
- Treatment of pentoses with a concentrated mineral acid yields a cyclic aldehyde known as
- Pentaldehyde
- Cyclopental
- Hexaldehyde
- Furfural✔
- Isoelectric pH is that pH at which protein is electrically:
- Neutral✔
- Anionic
- C ationic
- None of these
- About 6.25 g of haemoglobin is produced and destroyed in the body each day and the total amount of haemoglobin in a normal healthy 70 kg weighing male adult is
- 250 g
- 150 g✔
- 100 g
- 70 g
- Pancreatic juice contains all of the following except
- Trypsinogen
- Lipase
- Cholecystokinin✔
- Chymnotrypsinogen
- The milk protein in the stomach in an adult is digested by
- Pepsin✔
- Rennin
- HCl
- Chymotrypsinogen
- Carboxypeptidase, an enzyme of pancreatic juice, contains
- Mn
- Zinc✔
- Magnesium
- Manganese
- The zymogen from trypsinogen of pancreatic juice is converted to active trypsin by
- Peisin
- Enterocrinin
- Enterokinase✔
- Rennin
- Inactive zymogens are precursors of all the following gastrointestinal enzymes except
- Carboxypeptidase
- Pepsin
- Amino peptidase✔
- Chymotrypsin
- Rennin acts on casein of milk in infants in presence of
- Mg++
- Zn++
- Co++
- Ca++✔
- All the following are true about phenylketonuria except
- Deficiency of phenylalanine hydroxylase
- Mental retardation
- Increased urinary excretion of p-hydroxyphenyl pyruvic acid
- Decrease serotonin formation✔
- Which of the amino acid produces a vasodilator on decarboxylation?
- Glutamin acid
- Histidine✔
- Ornithine
- Cysteine
- Neutral amino acid is
- Leucine✔
- Lysine
- Aspartic acid
- Histidine
- The amino acid containing hydroxy group:
- Glycine
- Isoleucine
- Arginine
- Thereonine✔
- The amino acid which synthesizes many hormornes:
- Valine
- Phenylalanine✔
- Alanine
- Histidine
- Insulin degradation of disulfide bond formation is effected by
- Pyruvate dehydrogenase
- Xylitol reductase
- Gutathione reductase✔
- Xanthine oxidase
- A protein reacts with biuret reagent which indicates 2 or more
- Blood clotting
- Peptide bond✔
- Disulphide bonds
- Hydrophobic bonds
- In many proteins the hydrogen bonding produces a regular coiled arrangement which is called as
- β-Helix
- α-Helix✔
- Both (β-Helix ) and (α-Helix)
- Spiral
- The milk protein in the stomach of the infants is digested by
- Pepsin
- Trypsin
- Chymotrypsin
- Rennin✔
- Protein anabolism is stimulated by
- ACTH
- Testosterone✔
- Glucagon
- Epinephrine
- The number of helices present in a collagen molecule is
- 1
- 2
- 3✔
- 4
- Which bond is present in the primary structure of protein?
- Ester
- Hydrogen
- Ionic bond
- Peptide✔
- Sakaguchi reaction is specific for
- Guanidine group✔
- Phenolic group
- Carboxylic group
- None of these
- In protein structure the α-helix and βpleated sheets are example of
- Primary structure
- Secondary structure✔
- Tertiary structure
- Quaternary structure
- An essential amino acid in man is
- Proline
- Threonine✔
- Asparagine
- Tyrosine
- An amino acid that does not form an αhelix is
- Asparagine
- Tyrosine
- Tryptophan
- Proline✔
- The protein present in hair is
- Elastin
- Prolamine
- Keratin✔
- Gliadin
- Plasma protein can be separated by
- Salting out with (NH4)2SO4
- Ultracentrifugation
- Immuno electrophoresis
- All of these✔
- RNA does not contain
- Uracil
- Adenine
- Hydroxy methyl cytosine✔
- Phosphate
- In mammalian cells, ribosomal RNA is produced mainly in the
- Nucleus
- Nucleolus✔
- Ribosome
- Golgi apparatus
- Which co-enzyme is not involved in oxidative decarboxylation of pyruvic acid?
- TPP
- Mg++
- Biotin✔
- CoA-SH
- A polymeric unit of starch which has a branched structure is
- Glucose
- Amylopectin✔
- Isomaltose
- Amylose
- The repeating unit in hyaluronic acid is
- Glucuronic acid and Galactosamine
- Glucuronic acid are glucosamine
- Glucuronic acid and N-acetyl glucosamine✔
- Glucuronic acid and N-acetyl galactosamine
- The repeat ing d isacchar ide un it in celluslose is
- Sucrose
- Maltose
- Dextrose
- Cellobiose✔
- An example of a hydroxy fatty acid is
- Ricinoleic acid✔
- Crotonic acid
- Butyric acid
- Oleic acid
- An example of a saturated fatty acid is
- Palmitic acid✔
- Oleic acid
- Linoleic acid
- Erucic acid
- If the fatty acid is esterified with an alcohol of high molecular weight instead of glycerol, the resulting compound is
- Lipositol
- Plasmalogen
- Wax✔
- Cephalin
- A fatty acid which is not synthesized in the body and has to be supplied in the diet is
- Palmitic acid
- Lauric acid
- Linolenic acid✔
- Palmitoleic acid
- Essential fatty acid:
- Linoleic acid
- Linolenic acid
- Arachidonic acid
- All these✔
- The fatty acid present in cerebrosides is
- Lignoceric acid✔
- Valeric acid
- Caprylic acid
- Behenic acid
- The number of double bonds in arachidonic acid is
- 1
- 2
- 4✔
- 6
- In humans, a dietary essential fatty acid is
- Palmitic acid
- Stearic acid
- Oleic acid
- Linoleic acid✔
- A lipid containing alcoholic amine residue is
- Phosphatidic acid
- Ganglioside
- Glucocerebroside
- Sphingomyelin✔
- Cephalin consists of
- Glycerol, fatty acids, phosphoric acid and choline
- Glycerol, fatty acids, phosphoric acid and ethanolamine✔
- Glycerol, fatty acids, phosphoric acid and inositol
- Glycerol, fatty acids, phosphoric acid and serine
- In mammals, the major fat in adipose tissues is
- Phospholipid
- Cholesterol
- Sphingolipids
- Triacylglycerol✔
- Glycosphingolipids are a combination of
- Ceramide with one or more sugar residues✔
- Glycerol with galactose
- Sphingosine with galactose
- Sphingosine with phosphoric acid
- The importance of phospholipids as constituent of cell membrane is because they possess
- Fatty acids
- Both polar and nonpolar groups✔
- Glycerol
- Phosphoric acid
- In neutral fats, the unsaponificable matter includes
- Hydrocarbons✔
- Triacylglycerol
- Phospholipids
- C holsestero
- Higher alcohol present in waxes is
- Benzyl
- Methyl
- Ethyl
- Cetyl✔
The questions are typically designed to assess the technical skills and knowledge required for the laboratory profession, including the ability to analyze laboratory test results, perform laboratory procedures, and maintain laboratory equipment.
To prepare for these MCQs, candidates should have a thorough understanding of the key concepts and principles of laboratory science. They should also be familiar with common laboratory equipment and procedures, as well as laboratory safety protocols.
Candidates may also benefit from studying specific laboratory science textbooks or taking online courses that cover the material tested in the MCQs. Additionally, practicing sample MCQs and reviewing the answers can help candidates identify areas where they may need to improve their knowledge or skills.
Overall, the MCQs for lab technologists are designed to be challenging and comprehensive, requiring candidates to demonstrate a high level of proficiency in the field of laboratory science.
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