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CBSE

Subject

Biology
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NEET Biology : Chemical Coordination and Integration

Multiple Choice Questions

21.

A temporary endocrine gland in the human body is

  • Pineal gland

  • Corpus cardiacum

  • Corpus luteum

  • Corpus luteum



22.

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

  • Anterior pituitary gland and stimulates secretion of LH and oxytocin

  • Anterior pituitary gland and stimulates secretion of LH and FSH

  • Posterior pituitary gland and stimulates secretion of oxytocin and FSH

  • Posterior pituitary gland and stimulates secretion of oxytocin and FSH



23.

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

  • Parathyroid

  • Parotid

  • Pancreas

  • Pancreas



24.

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

  • ACTH

  • Insulin

  • Adrenalin

  • Adrenalin



25.

Which of the following is an accumulation and release centre of neurohormones?

  • Posterior pituitary lobe

  • Intermediate lobe of the pituitary

  • Hypothalamus

  • Hypothalamus



26.

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

  • Thyroxin

  • Adrenaline

  • Glucagon

  • Glucagon



27.

Which one of the following is not a second messenger in hormone action?

  • cGMP

  • Calcium

  • Sodium

  • Sodium



28.

Compared to a bull a bullock is docile because of

  • higher levels of thyroxin

  • higher levels of cortisone

  • lower levels of blood testosterone

  • lower levels of blood testosterone



29.

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

  • Renin

  • Atrial Natriuretic Factor

  • Aldosterone

  • Aldosterone



30.

A steroid hormone which regulates glucose metabolism is

  • cortisol

  • corticosterone

  • 11-deoxycorticosterone

  • 11-deoxycorticosterone



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