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Chemical Coordination and Integration · Question 51

AIPMT 2010 (Prelims)MCQEasy📈 Topic in 12% papers+4−1
1

Which one of the following pairs is incorrectly matched?

  1. Glucagon – Beta cells (source)
  2. Somatostatin – Delta cells (source)
  3. Corpus luteum – Relaxin (secretion)
  4. Insulin – Diabetes mellitus (disease)

Answer

(1) Glucagon – Beta cells (source)

Solution

As per NCERT, the islets of Langerhans have α-cells, which secrete glucagon, and β-cells, which secrete insulin.

⇒ So glucagon is not secreted by beta cells; pair (1) is incorrectly matched.

⇒ Somatostatin is secreted by delta cells, the corpus luteum secretes relaxin (besides progesterone), and deficiency of insulin causes diabetes mellitus; pairs (2), (3) and (4) are correct.

Answer: (1)

AIPMT 2010 (Prelims)

Keep practising — Chemical Coordination and Integration

2

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

  1. toxic goitre
  2. cretinism
  3. simple goitre
  4. thyrotoxicosis
AIPMT 2010 (Prelims)
3

Select the correct matching of a hormone, its source and function.

  1. array|l|l|l| Hormone & Source & Function \ Vasopressin & Posterior pituitary & Increases loss of \ & & water through urine \ array
  2. array|l|l|l| Hormone & Source & Function \ Norepinephrine & Adrenal medulla & Increases heart beat, \ & & rate of respiration and \ & & alertness \ array
  3. array|l|l|l| Hormone & Source & Function \ Glucagon & Beta-cells of Islets of & Stimulates glycogenolysis \ & Langerhans & \ array
  4. array|l|l|l| Hormone & Source & Function \ Prolactin & Posterior pituitary & Regulates growth \ & & of mammary glands \ & & and milk formation in \ & & females \ array
AIPMT 2010 (Prelims)
4

A health disorder that results from the deficiency of thyroxine in adults and characterised by (i) a low metabolic rate, (ii) increase in body weight and (iii) tendency to retain water in tissues is

  1. simple goitre
  2. myxoedema
  3. cretinism
  4. hypothyroidism.
AIPMT 2009
5

Which one of the following pairs of organs includes only the endocrine glands?

  1. Thymus and testes
  2. Adrenal and ovary
  3. Parathyroid and adrenal
  4. Pancreas and parathyroid
AIPMT 2008
6

The blood calcium level is lowered by the deficiency of

  1. both calcitonin and parathormone
  2. calcitonin
  3. parathormone
  4. thyroxine
AIPMT 2008
7

In human adult females oxytocin:

  1. causes strong uterine contractions during parturition
  2. stimulates pituitary to secrete vasopressin
  3. stimulates growth of mammary glands
  4. is secreted by anterior pituitary
AIPMT 2008
8

Feeling the tremors of an earthquake a scared resident of seventh floor of a multistoreyed building starts climbing down the stairs rapidly. Which hormone initiated this action?

  1. Adrenaline
  2. Glucagon
  3. Gastrin
  4. Thyroxine
AIPMT 2007
9

A person is having problems with calcium and phosphorus metabolism in his body. Which one of the following glands may not be functioning properly?

  1. Parotid
  2. Pancreas
  3. Thyroid
  4. Parathyroid
AIPMT 2007
10

Compared to a bull a bullock is docile because of:

  1. Lower levels of adrenalin/noradrenalin in its blood
  2. Lower levels of blood testosterone
  3. Higher levels of thyroxin
  4. Higher levels of cortisone
Out of syllabusAIPMT 2007
11

Which hormone causes dilation of blood vessels, increased oxygen consumption and glucogenesis?

  1. Glucagon
  2. ACTH
  3. Insulin
  4. Adrenaline
AIPMT 2006

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