chemical coordination - Details

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51 questions

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Treatment with alloxan destroys

Beta-cells of langerhans

Addison's disease result from

Hyposecretion of adrenal gland

The development of adult characteristics in a moulting insect is promoted by

Ecdysone

Steroid hormones are similar in structure to

Cholestrol

A person passes much urine and drinks much water put his blood glucose level normal. this conition may be the result off

A reduction in vasopressin secretion from posterior pituitary

The source of somatostatin is same as that of

Insulin and glucagon

Starts undergoing atropy after puberty

Thymus

The glucose level is commonly expressed as

Milligram per decilitre

The pituitary gland by virtue of its tropic hormones controls the secretory activity of other endocrine glands. which one of the following endocrine gland can function independently of the pituitary gland ?

Parathyroid

Which gland is concerned with salt equilibrium in body

Adrenal

Gonadotropin activity in a normal pregnant female

A high level of hCG stimulates the synthesis of estrogen and progesterone

GnRH, a hypothalamic hormone, needed in reproduction, acts on

Anterior pituitary gland and stimulates secretion of LH and FSH

What are the antagonistic of these hormones; parathormone, insulin, aldosterone

Calcitonin, glucagon and atrial natriuretic factor

Changes in GnRH pulse frequency in females is controlled by circulating levels of

Estrogen and progesterone

Which one of the following hormones is not involved in sugar metabolism

Aldosterone

Which hormone is not involved in sugar metabolism

Aldosterone

Which hormone though synthesised elsewhere is stored and released by the master gland

Antidiuretic hormone

Pineal gland, regulates the normal rhythm of sleepwake cycle

Melatoin

Nonepinephrine

Is released by sympathetic fibres and increase the heart rate

Injury to adrenal cortex is not likely to effect the secretion of which hormone

Adrenaline

Somatostatin source is

Delta cells

Toxic agents present in food which interfere with thyroxine synthesis lead to the development of

Simple goitre

A health disorder that results from the deficiency of thyroxine in adults and characterised by 1)a low metabolic rate 2)tendency to retain water in tissues is

Myxoedema

The blood calcium level is lowered by the deficiency of

Parathormone

Which part of ovary in mammals acts as an endocrine gland after ovulation

Graafian follicle

A person is having problems with calcium and phosphorus metabolism in his body. which gland may not be functioning properly

Parathyroid

Sertoli cells are regulated by the pituitary hormone known as

FSH

Hormone secretion product of placenta

Progesterone, human chorionic gonadotropin, estrogen

Deficiency of prolactin causes

Cretinism

Which type of hormones control the menstrual cycle in human beings

FSH, LH, estrogen

Acromegaly is caused by

Excess of G.H.

Oxytocin helps in

Child birth

A candidate vaccine for male contraception is based on

Testosterone

Insulin differs from growth hormone in that it

Stimulates hormone sensitive lipase in fat cells

Hormones,thyroxine,adrenaline and the pigment melanin are formed from

Tyrosine

Nicotine acts as a stimulant, because it mimics the effect of

Acetylcholine

Which endocrine gland stores its secretion in the extracellular space before discharging it into the blood

Thyroid

Function of enterogastrone is

Inhibition of gastric secretion

Ovulation occurs under the influence to

Testosterone is produced by

Leydig's cells

Male hormone is produced in the testis by cells of

Leydig

Addition of a trace of thyroxine or iodine in water containing tadpoles will be

Hasten their metamorphosis

MSH of pars intermedia of middle pituitary is responsible for

Darkening of skin in lower vertebrates

Which hormone possesses ani-insulin effect?

Cortisol

A decrease in blood pressure/ volume will not cause the release of

Atrial natriuretic factor

Identify the correct statement on inhibin

Is prduced by granulose cells in ovary and inhibits the secretion of LSH

Parkinson's disease (characterised by tremors and progressive rigidity of limbs) is caused by degenration of brain neurons that are involved in movement control and make use of neurotransmitter

Dopamine

Chemically hormones are

Protiens, steroids and biogenic amines

Which hormone is a modified amino acid

Epinephrine

Which steroid is used for microbial transformation

Cholesterol

The technique used for estimation of minute amounts of hormones and drugs is called

Radioimmunoassay

chemical coordination

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