6101 to 6150 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 6101 to 6151
- All the following statements correctly describe ketone bodies except
- They may result from starvation
- They are present at high levels in uncontrolled diabetes
- They include—OH β-butyrate and acetone
- They are utilized by the liver during long term starvation ✔
- Which of the following features is predicted by the Nicolson–Singer fluid mosaic model of biological membranes?
- Membrane lipids do not diffuse laterally
- Membrane lipid is primarily in a monolayer form
- Membrane lipids freely flip-flop
- Membrane proteins may diffuse laterally ✔
- Oxidative degradation of acetyl CoA in the citric acid cycle gives a net yield of all the following except
- FADH2
- 3 NADH
- 2 ATP ✔
- 2CO2
- All the following correctly describe the intermediate 3-OH-3-methyl glutaryl CoA except
- It is generated enzymatically in the mitochondrial matrix
- It is formed in the cytoplasm
- It inhibits the first step in cholesterol synthesis ✔
- It is involved in the synthesis of ketone bodies
- Intermediate in the denovo synthesis of triacyl glycerols include all the following except
- Fatty acyl CoA
- CDP diacyl glycerol ✔
- Glycerol-3-phosphate
- Lysophosphatidic acid
- Mitochondrial α-ketoglutarate dehydrogenase complex requires all the following to function except
- CoA
- FAD
- NAD+
- NADP+ ✔
- Each of the following can be an intermediate in the synthesis of phosphatidyl choline except
- Phosphatidyl inositol ✔
- CDP-choline
- Phosphatidyl ethanolamine
- Diacylglycerol
- High iodine value of a lipid indicates
- Polymerization
- Carboxyl groups
- Hydroxyl groups
- Unsaturation ✔
- Cholesterol, bile salts, vitamin D and sex hormones are
- Mucolipids
- Glycolipids
- Phospholipids
- Isoprenoid lipids ✔
- Water soluble molecular aggregates of lipids are known as
- Micelle ✔
- Colloids
- Sphingol
- Mucin
- Hypoglycemia depresses insulin secretion and thus increases the rate of
- Hydrolysis
- Reduction
- Gluconeogenesis ✔
- Respiratory acidosis
- The process of breakdown of glycogen to glucose in the liver and pyruvate and lacate in the muscle is known as
- Glyogenesis
- Glycogenolysis ✔
- Gluconeogenesis
- Cellular degradation
- Across a membrane phospholipids act as carrier of
- Organic compounds
- Inorganic ions ✔
- Nucleic acids
- Food materials
- Osteomalacia can be prevented by the administration of calcium and a vitamin:
- A
- B
- C
- D ✔
- Milk sugar is known as
- Fructose
- Glucose
- Sucrose
- Lactose ✔
- The Instrinisic Factor (HCl and mucoproteins) present in the gastric juice help in the absorption of
- Vitamin B2
- Tocopherols
- Folic acid
- Vitmain B12 ✔
- Lipase can act only at pH:
- 2.5–4
- 3.5–5
- 4 to 5
- 5–7 ✔
- Bile is produced by
- Liver ✔
- Gall-bladder
- Pancreas
- Intestine
- Non-protein part of rhodopsin is
- Retinal ✔
- Retinol
- Carotene
- Repsin
- A pathway that requires NADPH as a cofactor is
- Extramitochondrial folic acid synthesis ✔
- Ketone body formation
- Glycogenesis
- Gluconeogenesis
- LCAT activity is associated with which of the lipo-protein complex?
- VLDL
- Chylomicrones
- IDL
- HDL ✔
- In β−oxidation of fatty acids which of the following are utilized as co-enzymes?
- NAD+ and NADP+
- FAD H2 and NADH + H+
- FAD and FMN
- FAD and NAD+ ✔
- The lipoprotein with the fastest electrophoretic mobility and lowest TG content are
- VLDL
- LDL
- HDL ✔
- Chylomicrones
- The essential fatty acids retard
- Atherosclerosis✔
- Diabetes mellitus
- Nepritis
- Oedema
- The majority of absorbed fat appears in the forms of
- HDL
- Chylomicrone ✔
- VLDL
- LDL
- Daily output of urea in grams is
- 10 to 20
- 15 to 25
- 20 to 30 ✔
- 35 to 45
- Uremia occurs in
- Cirrohsis of liver
- Nephritis ✔
- Diabetes mellitus
- Coronary thrombosis
- Carboxyhemoglobin is formed by
- CO ✔
- CO2
- HCO3
- HCN
- Methemoglobin is formed as a result of the oxidation of haemoglobin by oxidation agent:
- Oxygen of Air
- H2O2
- K4Fe(CN)6 ✔
- KMnO4
- Methemoglobin can be reduced to haemoglobin by
- Removal of hydrogen
- Vitamin C ✔
- Glutathione
- Creatinine
- Fats are solids at
- 10°C
- 20°C ✔
- 30°C
- 40°C
- Esters of fatty acids with higher alcohol other than glycerol are called as
- Oils
- Polyesters
- Waxes ✔
- Terpenoids
- The main physiological buffer in the blood is
- Haemoglobin buffer
- Acetate
- Phosphate
- Bicarbonate ✔
- All of the following substances have been used to estimate GFR except
- Inulin
- Creatinine
- Phenol red✔
- Mannitol
- Relationship between GFR and seum creatinine concentration is
- Non-existent
- Inverse ✔
- Direct
- Indirect
- Urine turbidity may be caused by any of the following except
- Phosphates
- Protein ✔
- RBC
- WBC
- Urine specific gravity of 1.054 indicates
- Excellent renal function
- Inappropriate secretion of ADH
- Extreme dehydration ✔
- Presence of glucose or protein
- In hemolytic jaundice, the urinary bilirubin is
- Normal
- Absent
- More than normal ✔
- Small amount is present
- The pH of blood is about 7.4 when the ratio between (NaHCO3) and (H2CO3) is
- 10 : 1
- 20 : 1 ✔
- 25 : 1
- 30 : 1
- The absorption of glucose is decreased by the deficiency of
- Vitamin A
- Vitamin D
- Thiamine ✔
- Vitamin B12
- For the activity of amylase which of the following is required as co-factor?
- HCO3
- Na+
- K+
- Cl ✔
- Which of the following hormone increases the absorption of glucose from G.I.T?
- Insulin
- Throid hormones ✔
- Glucagon
- FSH
- Predominant form of storage:
- Carbohydrates
- Fats ✔
- Lipids
- Both (Fats) and (Lipids )
- Degradations of Hb takes place in
- Mitochondrion
- Erythrocytes
- Cytosol of cell
- R.E. cells ✔
- Biluveridin is converted to bilirubin by the process of
- Oxidation
- Reduction ✔
- Conjugation
- Decarboxylation
- Amylase present in saliva is
- α-Amylase ✔
- β-Amylae
- γ -Amylase
- All of these
- Phospholipids are important cell membrane components since
- They have glycerol
- Form bilayers in water
- Have polar and non-polar portions ✔
- Combine covalently with proteins
- Which of the following is not a phospholipids?
- Lecithin
- Plasmalogen
- Lysolecithin
- Gangliosides ✔
- A fatty acid which is not synthesized in human body and has to be supplied in the diet is
- Palmitic acid
- Oleic acid
- Linoleic acid ✔
- Stearic acid
- Phospholipids occur in
- Myelin sheath
- Stabilizes chylomicrans
- Erythrocyte membrane
- All of these ✔
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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