5601 to 5650 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 5601 to 5650
- Kerasin consists of
- Nervonic acid
- Lignoceric acid✔
- Cervonic acid
- Clupanodonic acid
- Gangliosides are complex glycosphingolipids found in
- Liver
- Brain✔
- Kidney
- Muscle
- Unsaturated fatty acid found in the cod liver oil and containing 5 double bonds is
- Clupanodonic acid
- Cervonic acid
- Elaidic acid
- Timnodonic acid✔
- Phospholipid acting as surfactant is
- Cephalin
- Phosphatidyl inositol
- Lecithin✔
- Phosphatidyl serine
- An oil which contains cyclic fatty acids and once used in the treatment of leprosy is
- Elaidic oil
- Rapeseed oil
- Lanoline
- Chaulmoogric oil✔
- Unpleasant odours and taste in a fat (rancidity) can be delayed or prevented by the addition of
- Lead
- Copper
- Tocopherol✔
- Ergosterol
- Gangliosides derived from glucosylceramide contain in addition one or more molecules of
- Sialic acid✔
- Glycerol
- Diacylglycerol
- Hyaluronic acid
- ’Drying oil’, oxidized spontaneously by atmospheric oxygen at ordinary temperature and forms a hard water proof material is
- Coconut oil
- Peanut oil
- Rape seed oil
- Linseed oil✔
- Deterioration of food (rancidity) is due to presence of
- Cholesterol
- Vitamin E
- Peroxidation of lipids✔
- Phenolic compounds
- The number of ml of N/10 KOH required to neutralize the fatty acids in the distillate from 5 gm of fat is called
- Reichert-Meissel number✔
- Polenske number
- Acetyl number
- Non volatile fatty acid number
- Molecular formula of cholesterol is
- C27H45OH✔
- C29H47OH
- C29H47OH
- C23H41OH
- The cholesterol molecule is
- Benzene derivative
- Quinoline derivative
- Steroid✔
- Straight chain acid
- Salkowski test is performed to detect
- Glycerol
- Cholesterol✔
- Fatty acids
- Vitamin D
- Palmitic, oleic or stearic acid ester of cholesterol used in manufacture of cosmetic creams is
- Elaidic oil
- Lanoline✔
- Spermaceti
- Chaulmoogric oil
- Dietary fats after absorption appear in the circulation as
- HDL
- VLDL
- LDL
- Chylomicron✔
- Free fatty acids are transported in the blood
- Combined with albumin✔
- Combined with fatty acid binding protein
- Combined with β -lipoprotein
- In unbound free salts
- Long chain fatty acids are first activated to acetyl-CoA in
- Cytosol✔
- Microsomes
- Nucleus
- Mitochondria
- The enzyme acyl-CoA synthase catalyses the conversion of a fatty acid of an active fatty acid in the presence of
- AMP
- ADP
- ATP✔
- GTP
- Carnitine is synthesized from
- Lysine and methionine✔
- Glycine and arginine
- Aspartate and glutamate
- Proline and hydroxyproline
- The enzymes of β-oxidation are found in
- Mitochondria✔
- Cytosol
- Golgi apparatus
- Nucleus
- Long chain fatty acids penetrate the inner mitochondrial membrane
- Freely
- As acyl-CoA derivative
- As carnitine derivative✔
- Requiring Na dependent carrier
- An important feature of Zellweger ’s syndrome is
- Hypoglycemia
- Accumulation of phytanic acid in tissues
- Skin eruptions
- Accumulation of C26-C38 polyenoic acid in brain tissues✔
- An important finding of Fabry’s disease is
- Skin rash✔
- Exophthalmos
- Hemolytic anemia
- Mental retardation
- Gaucher’s disease is due to deficiency of the enzyme:
- Sphingomyelinase
- Glucocerebrosidase✔
- Galactocerbrosidase
- β-Galactosidase
- Character ist ic f ind ing in Gaucher ’s disease is
- Night blindness
- Renal failure
- Hepatosplenomegaly✔
- Deafness
- An important finding in Neimann-Pick disease is
- Leukopenia
- Cardiac enlargement
- Corneal opacity
- Hepatosplenomegaly✔
- Fucosidosis is characterized by
- Muscle spasticity✔
- Liver enlargement
- Skin rash
- Kidney failure
- Metachromatic leukodystrophy is due to deficiency of enzyme:
- α-Fucosidase
- Arylsulphatase A✔
- Ceramidase
- Hexosaminidase A
- A significant feature of Tangier disease is
- Impairment of chylomicron formation
- Hypotriacylglycerolmia
- Absence of Apo-C-II✔
- Absence of Apo-C-I
- A significant feature of Broad Beta disease is
- Hypocholesterolemia
- Hypotriacylglycerolemia
- Absence of Apo-D
- Abnormality of Apo-E✔
- Neonatal tyrosinemia improves on administration of
- Thiamin✔
- Riboflavin
- Pyridoxine
- Ascorbic acid
- Absence of phenylalanine hydroxylase causes
- Neonatal tyrosinemia
- Phenylketonuria✔
- Primary hyperoxaluria
- Albinism
- Plasma tyrosine level in Richner-Hanhart syndrome is
- 1–2 mg/dL
- 2–3 mg/dL
- 4–5 mg/dL✔
- 8–10 mg/dL
- Amount of phenylacetic acid excreted in the urine in phenylketonuria is
- 100–200 mg/dL
- 200–280 mg/dL
- 290–550 mg/dL✔
- 600–750 mg/dL
- Tyrosinosis is due to defect in the enzyme:
- Fumarylacetoacetate hydrolase✔
- p-Hydroxyphenylpyruvate hydroxylase
- Tyrosine transaminase
- Tyrosine hydroxylase
- An important finding in Histidinemia is
- Impairment of conversion of α-Glutamate to α-ketoglutarate
- Speech defect✔
- Decreased urinary histidine level
- Patients can not be treated by diet
- An important finding in glycinuria is
- Excess excretion of oxalate in the urine
- Deficiency of enzyme glycinase
- Significantly increased serum glycine level
- Defect in renal tubular reabsorption of glycine✔
- Increased urinary indole acetic acid is diagnostic of
- Maple syrup urine disease
- Hartnup disease✔
- Homocystinuia
- Phenylketonuria
- In glycinuria daily urinary excretion of glycine ranges from
- 100–200 mg
- 300–500 mg
- 600–1000 mg✔
- 1100–1400 mg
- An inborn error, maple syrup urine disease is due to deficiency of the enzyme:
- Isovaleryl-CoAhydrogenase
- Phenylalnine hydroxylase
- Adenosyl transferase
- α-Ketoacid decarboxylase✔
- Maple syrup urine disease becomes evident in extra uterine life by the end of
- First week✔
- Second week
- Third week
- Fourth week
- Alkaptonuria occurs due to deficiency of the enzyme:
- Maleylacetoacetate isomerase
- Homogentisate oxidase✔
- p-Hydroxyphenylpyruvate hydroxylase
- Fumarylacetoacetate hydrolase
- An important feature of maple syrup urine disease is
- Patient can not be treated by dietary regulation
- Without treatment death, of patient may occur by the end of second year of life✔
- Blood levels of leucine, isoleucine and serine are increased
- Excessive brain damage
- Ochronosis is an important finding of
- Tyrosinemia
- Tyrosinosis
- Alkaptonuria✔
- Richner Hanhart syndrome
- Phrynoderma is a deficiency of
- Essential fatty acids✔
- Proteins
- Amino acids
- None of these
- The percentage of linoleic acid in safflower oil is
- 73✔
- 57
- 40
- 15
- The percentage of polyunsaturated fatty acids in soyabean oil is
- 62✔
- 10
- 3
- 2
- The percentage of polyunsaturated fatty acids in butter is
- 60
- 37
- 25
- 3✔
- Dietary fibre denotes
- Undigested proteins
- Plant cell components that cannot be digested by own enzymes✔
- All plant cell wall components
- All non digestible water insoluble polysaccharide
- A high fibre diet is associated with reduced incidence of
- Cardiovascular disease✔
- C.N.S. disease
- Liver disease
- Skin disease
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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