NEET Biology - New - Chemical Coordination and Integration

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Question - 1

Which of the following hormones can play a significant role in osteoporosis?

  • A Estrogen and Parathyroid hormone
  • B Progesterone and Aldosterone
  • C Aldosterone and Prolactin
  • D Parathyroid hormone and Prolactin

Question - 2

Name a peptide hormone which acts mainly on hepatocytes, adipocytes and enhances cellular glucose uptake and utilisation.

  • A Insulin
  • B Glucagon
  • C Secretin
  • D Gastrin

Question - 3

The posterior pituitary gland is not a true endocrine gland because:

  • A It is provided with a duct
  • B it only stores and releases hormones
  • C It is under the regulation of hypothalamus
  • D It secretes enzymes

Question - 4

The amino acid tryptophan is the precursor for the synthesis of :

  • A Cortisol and Cortisone
  • B Melatonin and Serotonin
  • C Thyroxine and Tri-iodothyronine
  • D Melatonin and Progesterone

Question - 5

Which one of the following hormones though synthesised elsewhere, is stored and released by the master gland?

  • A Melanocyte stimulating hormone
  • B  Antidiuretic hormone
  • C Luteinzing hormone
  • D Prolactin

Question - 6

Which one of the following hormone is not involved in sugar metabolism?

  • A Glucagon
  • B Cortisone
  • C Aldosterone
  • D Insulin

Question - 7

A chemical signal that has both endocrine and neural roles is:

  • A Melatonin
  • B Calcitonin
  • C Epinephrine
  • D Cortisol

Question - 8

In a normal pregnant woman, the amount of total gonadotropin activity was assessed. The result expected was :

  • A High level of circulating FSH and LH in the uterus to stimulate implantation of the embryo
  • B High level of circulating HCG to stimulate endometrial thickening
  • C High level of FSH and LH in uterus to stimulate endometrial thickening
  • D High level of circulating HCG to stimulate oestrogen and progesterone synthesis

Question - 9

A person entering an empty room suddenly finds a snake right in front of an opening the door. Which one of the following is likely to happen in his neuro-hormonal control system?

  • A Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla
  • B Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse
  • C Hypothalamus activates the parasympathetic division of brain
  • D Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex

Question - 10

  • A Corpus luteum-Relaxin (Secretion
  • B Insulin-Diabetes mellitus (disease
  • C Glucagon-Beta cells (source)
  • D Somatostatin-Delta cells (Source