7151 to 7200 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.
If You like then share this to your friends and other social media.
If You have any question and suggestions then please Contact us Here
Questions 7151 to 7200
- Hormones
- Act as coenzyme
- Act as enzyme
- Influence synthesis of enzymes ✔
- Belong to B-complex group
- Hormone that binds to intracellular receptor is
- Adrenocorticotropic hormone
- Thyroxine ✔
- Follicle stimulating hormone
- Glucagon
- Hormone that bind to cell surface receptor and require the second messenger camp is
- Antidiuretic hormone ✔
- Cholecystokinin
- Calcitriol
- Gastrin
- A hormone secreted from anterior pituitary is
- Growth hormone ✔
- Vasopressin
- Oxytocin
- Epinephrine
- A hormone secreted from posterior pituitary is
- Vasopressin ✔
- Thyrotropic hormone
- Prolactin
- Adrenocorticotropic hormone
- The number of amino acids in human growth hormone is
- 91
- 151
- 191✔
- 291
- Growth hormone causes hyperglycemia. It is a result of
- Decreased peripheral utilization of glucose ✔
- Decreased hepatic production via gluconeogenesis
- Increased glycolysis in muscle
- Decrersed lipolysis
- Acromegaly results due to excessive release of
- Thyroxine
- Growth hormone ✔
- Insulin
- Glucagon
- Growth hormone is released by
- Somatostatin
- Growth hormone releasing hormone ✔
- Prolactin release inhibiting hormone
- Luteinizing releasing hormone
- The number of amino acids in prolactin is
- 134
- 146
- 172
- 199✔
- Adrenocorticotropic hormone (ACTH) is a single polypeptide containing
- 25 amino acid
- 39 amino acid ✔
- 49 amino acid
- 52 amino acid
- Biological activity of ACTH requires
- 10-N-terminal amino acid
- 24-N-terminal amino acid ✔
- 24-C-terminal amino acid
- 15-C-terminal amino acid
- ACTH stimulates the secretion of
- Glucocorticoids ✔
- Epinephrine
- Thyroxine
- Luteinizing hormone
- Excessive secretion of ACTH causes
- Cushing’s syndrome ✔
- Addison’s disease
- Myxoedema
- Thyrotoxicosis
- In Cushing’s syndrome-a tumour associated disease of adrenal cortex, there is
- Decreased epinephrine production
- Excessive cortisol production ✔
- Excessive epinephrine production
- Decreased cortsoil production
- ACTH induces rise in
- Cyclic AMP ✔
- Cyclic GMP
- Calcium
- Magnesium
- The circulating concentration of ACTH in plasma is
- 0.05 mµ/100 ml
- 0.1–2.0 mµ/100 ml ✔
- 2.5–3.5 mµ/100 ml
- 3.0–5.0 mµ/100 ml
- Hyperglycemic effect of glucocorticoids is due to
- Inactivation of protein phosphatase
- Inactivation of fructose 1,6-biphosphatase
- Stimulation of synthesis of pyruvate carboxylase ✔
- Stimulation of synthesis of eltroxykinase
- The predominant glucocorticoid is
- Cortisol ✔
- Aldosterone
- Dehydroephiandrosterone
- Androstenedione
- A specific cortisol binding protein, transcortin is a
- Albumin
- α1-Globulin ✔
- α2-Globulin
- β-Globulin
- Cortisol is synthesized in
- Zona fasiculata ✔
- Zona glomerulosa
- Zona reticularis
- Chromaffin cells
- All mammalian steroid hormones are formed from
- Purine
- Pyrimidine
- Cholesterol ✔
- Pyrrole
- A very efficient inhibitor of steroid biosynthesis is
- Aminoglutethimide ✔
- Aminoimidazole
- Aminoimidazolesuccinyl carboxamine
- Aminopterin
- In adrenal gland the cholesterol is stored
- Mostly in the free form
- Mostly in esterified form ✔
- Large amount of free form and less amount of esterified form
- Equal amounts of free and esterified form
- Aldosterone synthesis occurs in
- Zona reticularis
- Zona fasciculata
- Zona glomerulosa ✔
- Chromaffian cells
- In the biosynthesis of cortiol, the sequence of enzymes involved is
- Hydroxylase–dehydrogenase + isomerase – hydroxylase ✔
- Dehydrogenase–hydroxylase–isomerase
- Hydroxylase–lyase–dehydrogenase isomerase
- Isomerase–lyase–hydroxylase–dehydrogenase
- The defect in adrenal cortex responsible for lack of glucocorticoids and mineralcorticoids is
- Androstenedione deficiency
- 17 α -OH progesterone deficiency
- C-21 hydroxylase deficiency ✔
- Testosterone deficiency
- 3-β-Hydroxysteroid dehydrogenase and ∆5,4 isomerase catalyse the conversion of the weak androgen DHEA to
- Androstenedione✔
- Testosterone
- Progesterone
- Estrone
- In the resting state plasma concentration of cortisol is
- 0.4–2.0 µg/100 ml
- 2.0–4.0 µg/100 ml
- 5.0–15.0 µg/100 ml ✔
- 18.0–25.0 µg/100 ml
- The most important effect of aldosterone is to
- Increase the rate of tubular reabsorption of sodium ✔
- Decrease the rate of tubular reabsorption of potassium
- Decrease the reabsorption of chloride
- Decrease the renal reabsorption of sodium
- One of the potent st imu lators of aldosterone secretion is
- Increased sodium concentration
- Decreased potassium concentration
- Increased potassium concentration✔
- Increased ECF volume
- In the rennin-angiotensin system the primary hormone is
- Angiotensinogen
- Angiotensin I
- Angiotensin II ✔
- Angiotensin III
- Aldosterone release is stimulated by
- α2-Globulin
- Renin
- Angiotensin II ✔
- Growth hormone
- In the synthesis of Angiotensin I, rennin acts on Angiotensinogen and cleaves the
- Leucine – leucine at 10 and 11 position ✔
- Valine – tyrosine at 3 and 4 position
- Isoleucine – histidine at 5 and 6 position
- Proline – histidine at 7 and 8 position
- Catecholamine hormones are synthesized in the
- Chromaffin cells of adrenal medulla ✔
- Zona glomerulosa of adrenal cortex
- Zona fasciculate of adrenal cortex
- Zona reticularis of adrenal cortex
- Catecholamine hormones are
- 3, 4-Dihydroxy derivatives of phenylethylamine ✔
- p-Hydroxy derivatives of phenylacetate
- p-Hydroxy derivatives of phenylpyruvate
- p-Hydroxy derivatives of phenyllactate
- The sequential steps in the conversion of tyrosine to epinephrine are
- Ring hydroxylation-decarboxylation-side chain hydroxylation-N-methylation ✔
- Side chain hydroxylation-decarboxylation-ring hydroxylation N-methylation
- Decarboxylation-ring hydroxylation-side chain hydroxylation-N-methylation
- N-methylation-decarboxylation-ring and side chain hydroxylation
- The hormone required for uterine muscle contraction for child birth is
- Progesterone
- Estrogen
- Oxytocin ✔
- Vasopressin
- The number of amino acids in the hormone oxytocin is
- 7
- 9 ✔
- 14
- 18
- Vasopressin and oxytocin circulate unbound to proteins and have very short plasma half lives, on the order of
- 1–2 minutes ✔
- 2–4 minutes
- 5–8 minutes
- 10–12 minutes
- Give me correct answar Melanogenesis is stimulated by
- MSH ✔
- FSH
- LH
- HCG
- The number of amino acids in antidiuretic hormone is
- 9 ✔
- 18
- 27
- 36
- ADH
- Reabsorbs water from renal tubules ✔
- Excretes water from renal tubules
- Excretes hypotonic urine
- Causes low specific gravity of urine
- Increased reabsorption of water from the kidney is the major consequence of the secretion of the hormone?
- Cortisol
- Insulin
- Vasopressin ✔
- Aldosterone
- An increase in the osmolality of extracellular compartment will
- Inhibit ADH secretion
- Stimulate ADH secretion ✔
- Cause no change in ADH secretion
- Stimulate the volume and osmoreceptor and inhibit ADH secretion
- For Catecholamine biosynthesis the rate limiting enzyme is
- DOPA decarboxylase
- DOPAMINE β-hydroxylase
- Tyrosine hydroxylase ✔
- Phenylalanine hydroxylase
- A hormone which cannot cross the blood brain barrier is
- Epinephrine
- Aldosterone
- ACTH ✔
- TSH
- The plasma level of epinephrine is less than
- 0.1 ng/ml ✔
- 0.2 ng/ml
- 0.4 ng/ml
- 0.8 ng/ml
- Epinephrine is rapidly metabolized by
- Monoamine oxidase ✔
- Deaminase
- Transminase
- Decarboxylase
- Pheochromocytomas are tumours of
- Adrenal cortex
- Adrenal medulla ✔
- Pancreas
- Bone
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.
Possible References Used
