6301 to 6350 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 6301 to 6350
- Pantothenic acid contains an amino acid which is
- Aspartic acid
- Glutamic acid
- β-Alanine ✔
- β-Aminoisobutyric acid
- Coenzyme A contains a nitrogenous base which is
- Adenine ✔
- Guanine
- Choline
- Ethanolamine
- The following is required for the formation of coenyzme A:
- ATP ✔
- GTP
- CTP
- None of these
- Coenzyme A is required for catabolism of
- Leucine
- Isoleucine
- Valine
- All of these ✔
- Deficiency of pantothenic acid in human beings can affect
- Nervous system
- Digestive system
- Both (Nervous system ) and (Digestive system) ✔
- None of these
- Pyridoxal phosphate is a coenzyme for
- Glutamate oxaloacetate transaminase
- Glutamate pyruvate transaminase
- Tyrosine transaminase
- All of these ✔
- Pyridoxal phosphate is required as a coenzyme in
- Transamination
- Transulphuration
- Desulphydration
- All of these ✔
- Pyridoxal phosphate is a coenzyme for
- Glycogen synthetase
- Phosphorylase ✔
- Both (Glycogen synthetase) and (Phosphorylase)
- None of these
- Pyridoxine deficiency can be diagnosed by measuring urinary excretion of
- Pyruvic acid
- Oxaloacetic acid
- Xanthurenic acid ✔
- None of these
- Pyridoxine deficiency can be diagnosed by measuring the urinary excretion of xanthurenic acid following a test dose of
- Glycine
- Histidine
- Tryptophan ✔
- Pyridoxine
- Pyridoxine requirement depends upon the intake of
- Carbohydrates
- Proteins ✔
- Fats
- None of these
- Anti-egg white injury factor is
- Pyridoxine
- Biton ✔
- Thiamin
- Liponic acid
- When eggs are cooked
- Biotin is destroyed but avidin remains unaffected
- Avidin is inactivated but biotin remains unaffected ✔
- Both avidin and biotin are inactivated
- Both avidin and biotin remain unaffected
- Biotin is required as a coenzyme by
- Anaerobic dehydrogenases
- Decarboxylases
- Aerobic dehydrogenases
- Carboxylases ✔
- Biotin is a coenzyme for
- Pyruvate carboxylase
- Acetyl CoA carboxylase
- Propionyl CoA carboxylase
- All of these ✔
- Lipoic acid is a conenzyme for
- Pyruvate dehydrogenase
- α-Ketoglutarate dehydrogenae
- Both (Pyruvate dehydrogenase) and (α-Ketoglutarate dehydrogenae) ✔
- None of these
- Chemically, lipoic acid is
- Saturated fatty acid
- Unsaturated fatty acid
- Amino acid
- Sulphur containing fatty acid ✔
- Folic acid contains
- Pteridine
- p-Amino benzoic acid
- Glutamic acid
- All of these ✔
- Conversion of folate into tetrahydrofolate requires
- NADH
- NADPH ✔
- FMNH2
- FADH2
- Riboflavin deficiency symptoms are
- Glossitis
- stomatis
- Vomitting
- Both (Glossitis) and (stomatis) ✔
- Vitamin B12 forms coenzymes known as
- Cobamide ✔
- Transcobalamin I
- Transcobalamin II
- Both (Cobamide ) and (Transcobalamin I)
- Methylcobalamin is required for formation of
- Serin from glycine
- Glycine from serine
- Methionine from homocysteine ✔
- All of these
- Absorption of Vitamin B12 requires the presence of
- Pepsin
- Hydrochloric acid
- Intrinsic factor
- Boh (Hydrochloric acid) and (Intrinsic factor) ✔
- Intrinsic factor is chemically a
- Protein
- Glycoprotein ✔
- Mucopolysaccaride
- Peptide
- Chemically, Extrinsic Factor of Castle is a
- Mucoprotein
- Glycoprotein ✔
- Mucopolysaccharide
- Cyanocobalaminm
- Vitamin B12 is
- Not stored in the body
- Stored in bone marrow
- Stored in liver ✔
- Stored in RE cells
- Vitamin B12 is transported in blood by
- Albumin
- Transcortin
- Transcobalamin I
- Transcobalamin II ✔
- Vitamin B12 is synthesized by
- Bacteria only ✔
- Plants only
- Animals only
- Both (Bacteria only) and (Plants only)
- Deficiency of vitamin B12 can occur because of
- Decreased intake of vitamin B12
- Atrophy of gastric mucosa
- Intestinal malabsorption
- All of these ✔
- Deficiency of vitamin B12 can be diagonised by
- Carr-Price reaction
- Ames assay
- Watson-Schwartz test
- Schilling test ✔
- Gastyrectomy leads to megaloblastic anaemia within a few
- Days
- Weeks
- Months
- Years ✔
- Ascorbic acid is required to synthesise all of the following except
- Collagen
- Bile acids
- Bile pigments ✔
- Epinephrine
- Vitamin C enhances the intestinal absorption of
- Potassium
- Iodine
- Iron ✔
- None of these
- Vitamin C activity is present in
- D-Ascorbic acid
- D-Dehydroascorbic acid
- L-Ascorbic acid
- Both (D-Ascorbic acid) and (D-Dehydroascorbic acid)✔
- Vitamin C is required for the synthesis of
- Bile acids from cholesterol ✔
- Bile salts from bile acids
- Vitamin D from cholesterol
- All of these
- Deficiency of vitamin C causes
- Beriberi
- Pellagra
- Pernicious anaemia
- Scurvy ✔
- Daily requirement of vitamin C in adults is about
- 100 mg
- 25 mg
- 70 mg ✔
- 100 mg
- The vitamin having the highest daily requirement among the following is
- Thiamin
- Ribovflavin
- Pyridoxine
- Ascorbic acid ✔
- Anaemia can occur due to the deficiency of all the following except
- Thiamin ✔
- Pyridoxine
- Folic acid
- Cyanocobalamin
- A vitamin which can be synthesized by human beings is
- Thiamin
- Niacin ✔
- Folic acid
- Cyanocobalamin
- Laboratory diagnosis of vitamin B12 deficiency can be made by measuring the urinary excretion of
- Xanthurenic acid
- Formiminoglutamic acid
- Methylmalonic acid ✔
- Homogentisic acid
- The molecule of vitamin A1 contains
- Benzene ring
- β-Ionone ring ✔
- β-Carotene ring
- None of these
- Precursor of Vitamin A is
- α-Carotene
- β-Carotene
- γ-Carotene
- All of these ✔
- Two molecules of vitamin A can be formed from 1 molecule of
- α-Carotene
- β-Carotene ✔
- γ-Carotene
- All of these
- Conversion of β-carotene into retinal requires the presence of
- β-Carotene dioxygenase
- Bile salts
- Molecular oxygen
- All of these ✔
- Conversion of retinal into ritonal requires the presence of
- NADH
- NADPH ✔
- FADH2
- Lipoic acid
- Vitamin A absorbed in intestine is released into
- Portal circulation
- Lacteals ✔
- Both (Portal circulation) and (Lacteals)
- None of these
- Vitamin A is stored in the body in
- Liver
- Adipose tissue
- Reticuloendothelial cells
- All of these ✔
- Rhodopsin contains opsin and
- 11-cis-retinal ✔
- 11-trans-retinal
- All-cis-retinal
- All trans-retinal
- When light falls on rod cells
- All-cis-retinal is converted into all-trans-retinal
- 11-cis-retinal is converted into 11-trans-retinal
- 11-trans-retinal is converted into all-transretinal
- 11-cis-retinal is converted into all-trans-retinal ✔
- Conversion of all-trans-retinal into alltrans-retinol requires
- NAD
- NADH
- NADP
- NADPH ✔
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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