Chapter 22 – Chemical Coordination And Integration

Class 11 Biology · 15 questions · 0 with answers

Questions

Q1Multiple choice

Select the right match of endocrine gland and their hormone among the options given below A. Pineal i. Epinephrine B. Thyroid ii. Melatonin C. Ovary iii. Estrogen D. Adrenal medulla iv. Tetraiodothyronine Options:

  • a.A-iv, B-ii, C-iii, D-i
  • b.A-ii, B-iv, C-i, D-iii
  • c.A-iv, B-ii, C-i, D-iii
  • d.A-ii, B-iv, C-iii, D-i
Q2Multiple choice

Which of the following hormones is not sereted by anterior pit?

  • a.Growth hormone
  • b.Follicle stimulating hormone
  • c.Oxytocin
  • d.Adrenocorticotrophic hormone
Q3Multiple choice

Mary is about to face an interview. But during the first five minutes before the interview she experiences sweating, increased rate of heart beat, respiration etc. Which of the following hormones are responsible for her restlessness?

  • a.Estrogen and progesterone
  • b.Oxytocin and vasopressin
  • c.Adrenaline and noradrenaline
  • d.Insulin and glucagon
Q4Multiple choice

The steroid responsible for balance of water and electrolytes in our body is

  • a.Insulin
  • b.Melatonin
  • c.Testosterone
  • d.Aldosterone
Q5Multiple choice

Thymosin is responsible for

  • a.Raising the blood sugar level
  • b.Raising the blood calcium level
  • c.Differentiation of T lymphocytes
  • d.Decrease in blood RBC
Q6Multiple choice

In the mechanism of action of a protein hormone, one of the second messengers is

  • a.Cyclic AMP
  • b.Insulin
  • c.T3
  • d.Gastrin
Q7Multiple choice

Leydig cells produce a group of hormones called

  • a.Androgens
  • b.Estrogens
  • c.Aldosterone
  • d.Gonadotropins
Q8Multiple choice

Corpus luteum secretes a hormone called

  • a.Prolactin
  • b.Progesterone
  • c.Aldosterone
  • d.Testosterone
Q9Multiple choice

Cortisol is secreted by

  • a.Pancrease
  • b.Thyroid
  • c.Adrenal
  • d.Thymus
Q10Multiple choice

A hormone responsible for normal sleep-wake cycle is

  • a.Epinephrine
  • b.Gastrin
  • c.Melatonin
  • d.Insulin CHEMICAL COORDINATION AND INTEGRATION 125
Q11Multiple choice

Hormones are called chemical signals that stimulate specific target tissues. Their action depends on the presenc3e of receptors on the respective target tissues. Which of the following is the correct location of the receptors in the case of protein hormones?

  • a.Extra cellular matrix
  • b.Blood
  • c.Plasma membrane
  • d.Nucleus
Q12Multiple choice

Choose the correct option among the following options Coloumn I Column II A. Epinephrine i. Stimulates muscle growth B. Testosterone ii. Decrease in blood pressure C. Glucagon iii. Breakdown of liver glycogen content D. Atrial natriuretic factor iv. Increases heart beat Options:

  • a.A-ii, B-i, C-iii, D-i
  • b.A-iv, B-i, C-iii, D-ii
  • c.A-i, B-ii, C-iii, D-iv
  • d.A-i, B-iv, C-ii, D-iii
Q13Multiple choice

Which of the following organs in mammals does not consist of a central incalcium balance in the human body?

  • a.Vitamin D
  • b.Parathyroid hormone
  • c.Thyrocalcitonin
  • d.Thymosin
Q14Multiple choice

Which of the following organs in mammals does not consist of a central meduallary’ region surrounded by a cortical region?

  • a.Ovary
  • b.Adrenal
  • c.Liver
  • d.Kidney
Q15Multiple choice

Which of the following conditions is not linked to deficiency of thyroid hormones?

  • a.Cretinism
  • b.Goitre
  • c.Myxedema
  • d.Exophthalmia