Thyroid function is determined by the use of isotopes: (A) Na24 (B) K42 (C) Ca45 (D) I131

Thyroid function is determined by the use of isotopes: (A) Na24 (B) K42 (C) Ca45 (D) I131
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Insulin like growth hormones are produced by (A) Hypophysis (B) Liver (C) Pancreas (D) Thyroid

Description : Insulin like growth hormones are produced by (A) Hypophysis (B) Liver (C) Pancreas (D) Thyroid

Last Answer : Answer : B

Hypthalamo _________ gonadal oxis, fill up the blank with the suitable word. (A) Adrenal (B) Thyroid (C) Hypophyseal (D) Pancreatic

Description : Hypthalamo _________ gonadal oxis, fill up the blank with the suitable word. (A) Adrenal (B) Thyroid (C) Hypophyseal (D) Pancreatic

Last Answer : Answer : C

Calcitomica is antagonist to (A) Serotonin (B) Thyroxine (C) Tri iodo thyronine (D) Para thyroid hormone

Description : Calcitomica is antagonist to (A) Serotonin (B) Thyroxine (C) Tri iodo thyronine (D) Para thyroid hormone

Last Answer : Answer : D

Protein bound iodine is _________ bound to protein. (A) Iodine (B) Thyroid hormones (C) Thyroxine (D) Tri iodo thyronine

Description : Protein bound iodine is _________ bound to protein. (A) Iodine (B) Thyroid hormones (C) Thyroxine (D) Tri iodo thyronine

Last Answer : Answer : B

High level of T3 and T4 and low TSH in serum indicates (A) Hyperthyroidism of pituitary origin (B) Hypothyroidism of pituitary origin (C) Hyperthyroidism of thyroid origin (D) Hypothyroidism of thyroid origin

Description : High level of T3 and T4 and low TSH in serum indicates (A) Hyperthyroidism of pituitary origin (B) Hypothyroidism of pituitary origin (C) Hyperthyroidism of thyroid origin (D) Hypothyroidism of thyroid origin

Last Answer : Answer : C

Administration of TSH increases serum T3 and T4 in (A) Hyperthyroidism of pituitary origin (B) Hyperthyroidism of thyroid origin (C) Hypothyroidism of pituitary origin (D) Hypothyroidism of thyroid origin

Description : Administration of TSH increases serum T3 and T4 in (A) Hyperthyroidism of pituitary origin (B) Hyperthyroidism of thyroid origin (C) Hypothyroidism of pituitary origin (D) Hypothyroidism of thyroid origin

Last Answer : Answer : C

Radioactive iodine uptake by thyroid gland is increased in (A) Endemic goitre (B) Hyperthyroidism (C) Myxoedema (D) Creatinism

Description : Radioactive iodine uptake by thyroid gland is increased in (A) Endemic goitre (B) Hyperthyroidism (C) Myxoedema (D) Creatinism

Last Answer : Answer : B

Radioactive iodine uptake by thyroid gland 24 hours of a test dose is (A) 1.5–15% of the test done (B) 15–20% of the test done (C) 20–40% of the test done (D) 50–70% of the test done

Description : Radioactive iodine uptake by thyroid gland 24 hours of a test dose is (A) 1.5–15% of the test done (B) 15–20% of the test done (C) 20–40% of the test done (D) 50–70% of the test done

Last Answer : Answer : C

Iodide uptake by thyroid gland is decreased by (A) Thicyanate (B) Thiouracil (C) Thiourea (D) Methimazole

Description : Iodide uptake by thyroid gland is decreased by (A) Thicyanate (B) Thiouracil (C) Thiourea (D) Methimazole

Last Answer : Answer : A

Parathyroid hormone (PTH) is synthesised in (A) Chief cells of parathyroid glands (B) Oxyphil cells of parathyroid glands (C) Para follicular cells of thyroid glands (D) Follicular cells of thyroid gland

Description : Parathyroid hormone (PTH) is synthesised in (A) Chief cells of parathyroid glands (B) Oxyphil cells of parathyroid glands (C) Para follicular cells of thyroid glands (D) Follicular cells of thyroid gland

Last Answer : Answer : A

Secretion of thyroid hormones is regulated by (A) Hypothalamus (B) Anterior pituitary (C) Feedback regulation (D) All of these 220 MCQs IN BIOCHEMISTRY

Description : Secretion of thyroid hormones is regulated by (A) Hypothalamus (B) Anterior pituitary (C) Feedback regulation (D) All of these 220 MCQs IN BIOCHEMISTRY

Last Answer : Answer : D

The most abundant thyroid hormone in blood is (A) Free T3 (B) T3 bound to TBG (C) Free T4 (D) T4 bound to TBG

Description : The most abundant thyroid hormone in blood is (A) Free T3 (B) T3 bound to TBG (C) Free T4 (D) T4 bound to TBG

Last Answer : Answer : D

The most powerful thyroid hormone is (A) Reverse T3 (B) DIT (C) T3 (D) T4

Description : The most powerful thyroid hormone is (A) Reverse T3 (B) DIT (C) T3 (D) T4

Last Answer : Answer : C

Receptors for thyroid hormones are present (A) On the cell membrane (B) Across the cell membrane (C) Inside the cells (D) In association with G-proteins

Description : Receptors for thyroid hormones are present (A) On the cell membrane (B) Across the cell membrane (C) Inside the cells (D) In association with G-proteins

Last Answer : Answer : C

Thyroid hormones are present in blood (A) In free form (B) In association with thyroxine binding globulin (TBG) (C) In association with thyroxine binding prealbumin (TBPA) (D) Mainly in association with TBG, partly in free form and sometimes in association with TBPA also

Description : Thyroid hormones are present in blood (A) In free form (B) In association with thyroxine binding globulin (TBG) (C) In association with thyroxine binding prealbumin (TBPA) (D) Mainly in association with TBG, partly in free form and sometimes in association with TBPA also

Last Answer : Answer : D

Thyroid gland takes up circulating iodine (A) By simple diffusion (B) By facilitated diffusion (C) By active uptake (D) In exchange for chloride

Description : Thyroid gland takes up circulating iodine (A) By simple diffusion (B) By facilitated diffusion (C) By active uptake (D) In exchange for chloride

Last Answer : Answer : C

Thyroperoxidase iodinates (A) Free tyrosine in thyroid gland (B) Tyrosine residues of thyroglobulin (C) Tyrosine residues of thyroxine binding globulin (D) Tyrosine residues of thyroxine binding prealbumin

Description : Thyroperoxidase iodinates (A) Free tyrosine in thyroid gland (B) Tyrosine residues of thyroglobulin (C) Tyrosine residues of thyroxine binding globulin (D) Tyrosine residues of thyroxine binding prealbumin

Last Answer : Answer : B

An enzyme required for the synthesis of thyroid hormones is (A) Iodinase (B) Deiodinase (C) Thyroperoxidase (D) Thyroxine synthetase

Description : An enzyme required for the synthesis of thyroid hormones is (A) Iodinase (B) Deiodinase (C) Thyroperoxidase (D) Thyroxine synthetase

Last Answer : Answer : C

An amino acid used for the synthesis of thyroid hormone is (A) Tyrosine (B) Tryptophan (C) Histidine (D) Proline

Description : An amino acid used for the synthesis of thyroid hormone is (A) Tyrosine (B) Tryptophan (C) Histidine (D) Proline

Last Answer : Answer : A

All the following statements about TSH are true except (A) It is a tropic hormone (B) It acts on para-follicular cells of thyroid glands (C) Its receptors are membrane-bound (D) Its second messenger is cyclic AMP

Description : All the following statements about TSH are true except (A) It is a tropic hormone (B) It acts on para-follicular cells of thyroid glands (C) Its receptors are membrane-bound (D) Its second messenger is cyclic AMP

Last Answer : Answer : B

Somatotropin is secreted by (A) Hypothalamus (B) Anterior pituitary (C) Posterior pituitary (D) Thyroid gland

Description : Somatotropin is secreted by (A) Hypothalamus (B) Anterior pituitary (C) Posterior pituitary (D) Thyroid gland

Last Answer : Answer : B

The leyding cell activity is controlled by (A) Intestitial cell stimulating hormone (B) Adernocortex stimulating hormone (C) Thyroid stimulating hormone (D) Melanocyte stimulating harmone

Description : The leyding cell activity is controlled by (A) Intestitial cell stimulating hormone (B) Adernocortex stimulating hormone (C) Thyroid stimulating hormone (D) Melanocyte stimulating harmone

Last Answer : Answer : A

Thyroid hormones are synthesized by the iodination of the amino acid: (A) Glycine (B) Phenylalanine (C) Alanine (D) Tyrosine

Description : Thyroid hormones are synthesized by the iodination of the amino acid: (A) Glycine (B) Phenylalanine (C) Alanine (D) Tyrosine

Last Answer : Answer : D

Thyroid stimulating hormone is a dimer. The α-subunits of TSH, LH, FSH are identical. Thus the biological specificity must therefore be β subunit in which the number of amino acids is (A) 78 (B) 112 (C) 130 (D) 199

Description : Thyroid stimulating hormone is a dimer. The α-subunits of TSH, LH, FSH are identical. Thus the biological specificity must therefore be β subunit in which the number of amino acids is (A) 78 (B) 112 (C) 130 (D) 199

Last Answer : Answer : B

A substance which competes with iodide uptake mechanism by thyroid gland is (A) Thiocynate (B) Iodoacetate (C) Fluoride (D) Fluoroacetate

Description : A substance which competes with iodide uptake mechanism by thyroid gland is (A) Thiocynate (B) Iodoacetate (C) Fluoride (D) Fluoroacetate

Last Answer : Answer : A

Excess secretion of thyroid hormones causes (A) Hyperthyroidism (B) Myxoedema (C) Cretinism (D) Cushing syndrome

Description : Excess secretion of thyroid hormones causes (A) Hyperthyroidism (B) Myxoedema (C) Cretinism (D) Cushing syndrome

Last Answer : Answer : A

All the following statements about endemic goiter are true except (A) It occurs in areas where soil and water have low iodine content (B) It leads to enlargement of thyroid gland (C) It results ultimately in hyperthyroidism (D) It can be prevented by consumption of iodised salt

Description : All the following statements about endemic goiter are true except (A) It occurs in areas where soil and water have low iodine content (B) It leads to enlargement of thyroid gland (C) It results ultimately in hyperthyroidism (D) It can be prevented by consumption of iodised salt

Last Answer : Answer : C

Iodine content of thyroid gland in an adult is about (A) 1–3 mg (B) 4–8 mg (C) 10–15 mg (D) 25–30 mg

Description : Iodine content of thyroid gland in an adult is about (A) 1–3 mg (B) 4–8 mg (C) 10–15 mg (D) 25–30 mg

Last Answer : Answer : C

Iodine is stored in (A) Thyroid gland as thyroglobulin (B) Liver (C) Intestine (D) Skin

Description : Iodine is stored in (A) Thyroid gland as thyroglobulin (B) Liver (C) Intestine (D) Skin

Last Answer : Answer : A

Prostaglandins are liberated in the circulation by the stimulation of (A) Anterior pituitary glands (B) Posterior pituitary glands (C) Adrenal gland (D) Thyroid gland

Description : Prostaglandins are liberated in the circulation by the stimulation of (A) Anterior pituitary glands (B) Posterior pituitary glands (C) Adrenal gland (D) Thyroid gland

Last Answer : Answer : C

Calcitonin is synthesised in (A) Parathyroid glands (B) Thyroid gland (C) Pars intermedia of pituitary (D) Adrenal cortex

Description : Calcitonin is synthesised in (A) Parathyroid glands (B) Thyroid gland (C) Pars intermedia of pituitary (D) Adrenal cortex

Last Answer : Answer : B

DOPA is an intermediate in the synthesis of (A) Thyroid hormones (B) Catecholamines (C) Melanin (D) Catecholamines and melanin

Description : DOPA is an intermediate in the synthesis of (A) Thyroid hormones (B) Catecholamines (C) Melanin (D) Catecholamines and melanin

Last Answer : Answer : D

All the following statements about phenylketonuria are correct except (A) Phenylalanine cannot be converted into tyrosine (B) Urinary excretion of phenylpyruvate and phenyllactate is increased (C) It can be controlled by giving a lowphenylalanine diet (D) It leads to decreased synthesis of thyroid hormones, catecholamines and melanin

Description : All the following statements about phenylketonuria are correct except (A) Phenylalanine cannot be converted into tyrosine (B) Urinary excretion of phenylpyruvate and phenyllactate is increased (C) It ... diet (D) It leads to decreased synthesis of thyroid hormones, catecholamines and melanin

Last Answer : Answer : D

Tryptophan could be considered as precursor of (A) Melanotonin (B) Thyroid hormones (C) Melanin (D) Epinephrine

Description : Tryptophan could be considered as precursor of (A) Melanotonin (B) Thyroid hormones (C) Melanin (D) Epinephrine

Last Answer : Answer : A

Low uptake of 123I on the thyroid uptake scan would be an expected finding in: 1) A solitary toxic nodule 2) A multi-nodular toxic goitre 3) Amiodarone induced thyrotoxicosis type 1 4) DeQuervain's thyroiditis 5) Graves' thyrotoxicosis

Description : Low uptake of 123I on the thyroid uptake scan would be an expected finding in: 1) A solitary toxic nodule 2) A multi-nodular toxic goitre 3) Amiodarone induced thyrotoxicosis type 1 4) DeQuervain's thyroiditis 5) Graves' thyrotoxicosis

Last Answer : Answers-4 DeQuervain's thyroiditis is classically associated with low or absent 123I (the 131 radioactive isotope of iodine) uptake. The others will have high or normal uptake. In particular type ... may be distinguished from the thyroiditis of type 2 by the normal or high uptake scan.

What is the function of the thyroid gland?

Description : What is the function of the thyroid gland?

Last Answer : A: The thyroid gland produces hormones that regulate metabolism, growth, and development in the body.

What is the function of the thyroid gland?

Description : What is the function of the thyroid gland?

Last Answer : A: The thyroid gland is responsible for producing and releasing thyroid hormones, which play a role in regulating metabolism, growth, and development.

What is a function of the thyroid gland?

Description : What is a function of the thyroid gland?

Last Answer : Regulates calcium in blood

What is the function of thyroid gland ?

Description : What is the function of thyroid gland ?

Last Answer : : This gland normally controls the work of metabolism. It helps in normal growth of human body and growth of genitals.

Thyroid function tests?

Description : Thyroid function tests?

Last Answer : DefinitionThyroid function tests are common tests used to tell how well your thyroid is working.See the following articles for details:T3 testT3 resin uptakeT4 testThyroid scanTSH testReferencesLadenson P, Kim M. ... D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders; 2007:chap 244.

Which of the following statement(s) is/are true concerning oxygen consumption (O2)? a. O2 is normally 100–120 cc2/m2/min b. Resting O2 is controlled by the level of thyroid and catecholamine hormones c. Under steady state conditions the amount of oxygen consumed exceeds the amount of oxygen taken up by the pulmonary capillaries d. O2 is dependent on the status of pulmonary function

Description : Which of the following statement(s) is/are true concerning oxygen consumption (O2)? a. O2 is normally 100-120 cc2/m2/min b. Resting O2 is controlled by the level of thyroid and catecholamine ... of oxygen taken up by the pulmonary capillaries d. O2 is dependent on the status of pulmonary function

Last Answer : Answer: a, b Oxygen consumed in the process of metabolism is expressed as the volume of oxygen per minute (O2). O2 is normally 100-120 cc2/m2/min, or 200 cc/min for a typical adult. ... , so we measure O2 across the lung and assume that it is exactly the amount consumed in the systemic metabolism

Iodized salt is beneficial for – (1) lowering of blood pressure (2) prevention of dehydration (3) thyroid function (4) salivary glands

Description : Iodized salt is beneficial for – (1) lowering of blood pressure (2) prevention of dehydration (3) thyroid function (4) salivary glands

Last Answer : (3) thyroid function Explanation: Iodized salt (also spelled iodised salt) is table salt mixed with a minute amount of various salts of the element iodine. The ingestion of iodide prevents iodine ... can be cheaply addressed by purposely adding small amounts of iodine to the sodium chloride salt.

Match the source gland with its respective hormone and function and select the correct option. Source Hormone Function gland (a) Anterior Oxytocin Contraction of uterus pituitary muscles during child birth (b) Posterior Vasopressin Stimulates pituitary reabsorption of water in the distal tubules in the nephron (c) Corpus Estrogen Supports pregnancy luteum (d) Thyroid Thyroxine Regulates blood calcium level

Description : Match the source gland with its respective hormone and function and select the correct option. Source Hormone Function gland (a) Anterior Oxytocin Contraction of uterus pituitary muscles during ... (c) Corpus Estrogen Supports pregnancy luteum (d) Thyroid Thyroxine Regulates blood calcium level

Last Answer : (b) Posterior Vasopressin Stimulates pituitary reabsorption of water in the distal tubules in the nephron

Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/deficiency symptom. Endocrine Hormone Function/ gland Deficiency symptoms (a) Thyroid Thyroxine Lack of iodine gland in diet results in goitre (b) Corpus Testo- Stimulates luteum sterone spermatogenesis (c) Anterior Oxytocin Stimulates pituitary uterus contraction during child birth (d) Posterior Growth Oversecretion pituitary hormone stimulates (GH) abnormal growth

Description : Select the answer which correctly matches the endocrine gland with the hormone it secretes and its function/deficiency symptom. Endocrine Hormone Function/ gland Deficiency symptoms (a) ... child birth (d) Posterior Growth Oversecretion pituitary hormone stimulates (GH) abnormal growth

Last Answer : (a) Thyroid Thyroxine Lack of iodine gland in diet results in goitre

A 20 yr. old female patient presents with pain in thyroid region of the neck since few days. She gives recent history of mumps. On palpation thyroid is tender and her thyroid function test reveals raised levels of T3, T4 and low TSH. Iodine uptake is also low. Probable diagnosis in this case is:

Description : Which of the following is the most common cause of Hypothyroidism in iodine sufficient area? Options: 1) Iatrogenic hypothyroidism 2) Post-partum thyroiditis 3) Autoimmune thyroiditis 4) Thyroid aplasia

Last Answer : Correct Answer: 3) Autoimmune thyroiditis

A 20 yr. old female patient presents with pain in thyroid region of the neck since few days. She gives recent history of mumps. On palpation thyroid is tender and her thyroid function test reveals raised levels of T3, T4 and low TSH. Iodine uptake is also low. Probable diagnosis in this case is:1) de Quervain’s thyroiditis 2) Silent thyroiditis 3) Primary thyrotoxicosis 4) Hashimoto’s thyroiditis

Description : A 20 yr. old female patient presents with pain in thyroid region of the neck since few days. She gives recent history of mumps. On palpation thyroid is tender and her thyroid function ... 1) de Quervain's thyroiditis 2) Silent thyroiditis 3) Primary thyrotoxicosis 4) Hashimoto's thyroiditis

Last Answer : Correct Answer: 1) de Quervain’s thyroiditis

Which of the following glands has both an endocrine and an exocrine function? A) mammary gland B) pancreas C) pituitary D) adrenal gland E) thyroid gland

Description : Which of the following glands has both an endocrine and an exocrine function? A) mammary gland B) pancreas C) pituitary D) adrenal gland E) thyroid gland

Last Answer : B) pancreas

Iodized salt is beneficial for (1) lowering of blood pressure (2) prevention of dehydration (3) thyroid function (4) salivary glands

Description : Iodized salt is beneficial for (1) lowering of blood pressure (2) prevention of dehydration (3) thyroid function (4) salivary glands

Last Answer : thyroid function

Do different isotopes of the same element bond differently?

Description : Do different isotopes of the same element bond differently?

Last Answer : answer:So, at the most basic level, the main difference is the energies of the bonds themselves, especially the vibrational energies. Since isotopes are either slightly larger or smaller than the ... for heavier atoms, though you naturally need better and better equipment to tell the difference.

Defi ne isotopes and isobars and also give examples. -Science

Description : Defi ne isotopes and isobars and also give examples. -Science

Last Answer : So, we can say that isobars are those elements which have a different atomic number but the same mass number. ... The example of two Isotopes and Isobars is iron and nickel. Both have the same mass number which is 58 whereas the atomic number of iron is 26, and the atomic number of nickel is 28.