5151 to 5200 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 5151 to 5200
- MHC class II proteins are present on the surface of
- All cells
- B lymphocytes only
- Macrophages only
- Macrophages and B lymphocytes✔
- MHC Class II proteins, in conjunction with antigens, are recognised by
- Cytotoxic T cells
- Helper T cells✔
- Suppressor T cells
- Memory T cells
- CD 8 is a transmembrane glycoprotein present in
- Cytotoxic T cells✔
- Helper T cells
- Suppressor T cells
- Memory T cells
- CD 4 is a transmembrane glycoprotein present in
- Cytotoxic T cells
- Helper T cells✔
- Suppressor T cells
- Memory T cells
- CD 3 complex and p 56lck proteins are present in
- Cytotoxic T cells
- Helper T cells
- Both (Cytotoxic T cells ) and (Helper T cells)✔
- None of these
- Cytotoxic T cells release
- Perforins✔
- Interleukins
- Colony stimulating factors
- Tumour necrosis factor
- Helper T cells release
- Interleukins
- Colony stimulating factors
- Tumour necrosis factor
- All of these✔
- MHC Class III proteins include
- Immunoglobulins
- Components of complement system✔
- T cells receptors
- CD4 and CD8 proteins
- Human immunodeficiency virus destroys
- Cytotoxic T cells
- Helper T cells✔
- B cells
- Plasma cells
- In allergic diseases, the concentration of the following is increased in plasma:
- IgA
- IgG
- IgD
- IgE✔
- IgE has a tendency to attach to
- Basophils
- Mast cells
- Both (Basophils ) and (Mast cells)✔
- None of these
- Reaginic antibody is
- IgA
- IgG
- IgD
- IgE✔
- Active immunity can be produced by administration of
- Killed bacteria or viruses
- Live attenuated bacteria or viruses
- Toxoids
- All of these✔
- Passive immunity can be produced by administration of
- Pure antigens
- Immunoglobulins✔
- Toxoids
- Killed bacteria or viruses
- Helper T cells release all the following except
- Interleukins
- Colony stimulating factors
- Perforins✔
- Tumour necrosis factor
- IgG cleaved by papain into
- Two light and two heavy chains
- Two Fab and one Fc fragments✔
- Two pairs of one light and one heavy chain each
- One Fab and two Fc fragments
- Bence-Jones protein is
- An immunoglobulin
- A dimer of heavy chains
- A dimer of light chains✔
- A dimer of one heavy and one light chains
- Bence-Jones proteins possess all the following properties except
- They are dimers of light chains
- Their amino acids sequences are identical✔
- Their N-terminal halves have variable amino acid sequences
- Their C-terminal halves have constant amino acid sequences
- A Zwitterion is
- Positive ion
- Negative ion
- Both (Positive ion) and (Negative ion)✔
- None of these
- After accounting for SDA, the net gain of energy from 25 gm of proteins is about
- 70 kcal
- 100 kcal✔
- 130 kcal
- 200 kcal
- After accounting for SDA, the net gain of energy from 25 gm of carbohydrates is about
- 70 kcal
- 95 kcal✔
- 100 kcal
- 105 kcal
- After accounting for SDA, the net gain of energy from 100 gm of fat is about
- 600 kcal
- 780 kcal✔
- 900 kcal
- 1020 kcal
- If proteins, carbohydrates and fats are consumed together:
- The total SDA is the sum of individual SDAs of proteins, carbohydrates and fats
- The total SDA is more than the sum of individual SDAs of proteins, carbohydrates and fats✔
- Carbohydrates and fats lower the SDA of proteins
- Proteins raise the SDA of carbohydrates and fats
- After calculating the energy requirement of a person:
- 10% kcal are subtracted on account of SDA
- 10% kcal are added on account of SDA✔
- 20% kcal are subtracted on account of SDA
- 20% kcal are subtracted on account of SDA
- The recommended energy intake for an adult sedentary Indian man is
- 1,900 kcal/day
- 2,400 kcal/day✔
- 2,700 kcal/day
- 3,000 kcal/day
- The recommended energy intake for an adult sedentary Indian woman is
- 1,900 kcal/day✔
- 2,200 kcal/day
- 2,400 kcal/day
- 2,700 kcal/day
- During pregnancy, the following should be added to the calculated energy requirement:
- 300 kcal/day✔
- 500 kcal/day
- 700 kcal/day
- 900 kcal/day
- During first six months of lactation, the following increment in energy intake is recommended:
- 200 kcal/day
- 300 kcal/day
- 550 kcal/day✔
- 1,000 kcal/day
- The proximate principles of diet are
- Vitamins and minerals
- Proteins
- Carbohydrates and fats
- Carbohydrates, fats and proteins✔
- The limiting amino acid in wheat is
- Leucine
- Lysine✔
- Cysteine
- Methionine
- The limiting amino acid in pulses is
- Leucine
- Lysine
- Tryptophan
- Methionine✔
- Maize is poor in
- Lysine
- Methionine
- Tryptophan
- Lysine and tryptophan✔
- The percentage of ingested protein/ nitrogen absorbed into blood stream is known as
- Net protein utilisation
- Protein efficiency ratio
- Digestibility coefficient✔
- Biological value of protein
- Biological value of a protein is
- The percentage of ingested protein/nitrogen absorbed into circulation
- The percentage of ingested protein/nitrogen in the body
- The percentage of ingested protein utilised for protein synthesis in the body✔
- The gain in body weight (gm) per gm of protein ingested
- Net protein utilisation depends upon
- Protein efficiency ratio
- Digestibility coefficient
- Digestibility coefficient and protein efficiency ratio
- Digestibility coefficient and biological value✔
- The gain in body weight (gm) per gm of protein ingested is known as
- Net protein utilisation
- Protein efficiency ratio✔
- Digestibility coefficient
- Biological value of protein
- The following is considered as reference standard for comparing the nutritional quality of proteins:
- Milk proteins
- Egg proteins✔
- Meat proteins
- Fish proteins
- Biological value of egg proteins is about
- 70 %
- 80 %
- 86 %
- 94 %✔
- The following has the highest protein efficiency ratio:
- Milk proteins
- Egg proteins✔
- Meat proteins
- Fish proteins
- The following has the lowest protein efficiency ratio:
- Maize proteins✔
- Wheat proteins
- Milk proteins
- Rice proteins
- Protein content of egg is about
- 10%
- 13%✔
- 16%
- 20%
- Protein content of meat is about
- 10%
- 13%
- 16%
- 20%✔
- Protein content of rice is about
- 7%✔
- 12%
- 15%
- 20%
- The calorific value of wheat is about
- 2.5 kcal/gm
- 3.5 kcal/gm✔
- 4.5 kcal/gm
- 5.5 kcal/gm
- For vegetarians, pulses are an important source of
- Carbohydrates
- Proteins✔
- Fat
- Iron
- The amino acids present in pulses can supplement the limiting amino acids of
- Cereals✔
- Milk
- Fish
- Nuts and beans
- Milk is a good source of all of the following except
- Essential amino acids
- Vitamin C✔
- Galactose
- Calcium and phosphorous
- Milk is poor in
- Cholesterol
- Retinol
- Calcium
- Iron✔
- Egg is rich in all of the following except
- Cholesterol
- Saturated fatty acids
- Ascorbic acid✔
- Calcium
- A phosphoprotein present in egg is
- Casein
- Albumin
- Ovoglobulin
- Ovovitellin✔
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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