Class 11 Biology MCQ

Test your knowledge with important Class 11 Biology MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Class 11 Biology MCQs at Bissoy

• The receptor for estrogen is intracellular. True or false?
  ক

  True

  খ

  False
• Which of these functions is not regulated by intracellular hormone-receptor complexes?
  ক

  Regulation of gene expression

  খ

  Regulation of chromosome function

  গ

  Interaction with the genome

  ঘ

  Regulation of K+ entry into the cell
• IP3 is a(n) _____
  ক

  secondary messenger

  খ

  membrane receptor

  গ

  intracellular receptor

  ঘ

  nuclear receptor
• Which of these is a secondary messenger?
  ক

  Ca2+

  খ

  Mg2+

  গ

  Na+

  ঘ

  K+
• Adrenaline is derived from ______
  ক

  lipopolysaccharides

  খ

  amino acids

  গ

  lipids

  ঘ

  sugars
• Hypothalamic hormones are ______
  ক

  peptides

  খ

  steroids

  গ

  iodothyronines

  ঘ

  amino acid derivates
• What type of hormone is glucagon?
  ক

  Iodothyronines

  খ

  Steroids

  গ

  Peptide

  ঘ

  Amino acid derivatives
• Which of these is false regarding receptors?
  ক

  Intracellular receptors are present within the cell

  খ

  Receptors form complexes with hormones

  গ

  Receptors disintegrate after contact with hormones

  ঘ

  Receptors are specific
• Hormone receptors are ______
  ক

  glycolipids

  খ

  lipids

  গ

  polysaccharides

  ঘ

  proteins
• Which of these functions is reduced by GIP?
  ক

  Spermatogenesis

  খ

  GI motility

  গ

  Oogenesis

  ঘ

  Melanin production
• Which hormone reduces the secretion of the gastric hormones?
  ক

  GIP

  খ

  CCK

  গ

  PRL

  ঘ

  FSH
• Secretin acts on _____
  ক

  delta cells of pancreas

  খ

  beta cells of pancreas

  গ

  exocrine cells of pancreas

  ঘ

  alpha cells of pancreas
• Which of these hormones stimulates the secretion of bile?
  ক

  MSH

  খ

  GIP

  গ

  CCK

  ঘ

  PRL
• Which of these hormones stimulates secretion of water and bicarbonate ions?
  ক

  MSH

  খ

  CCK

  গ

  Gastrin

  ঘ

  Secretin
• CCK is a peptide hormone. True or false?
  ক

  True

  খ

  False
• Hydrochloric acid secretion is stimulated by ______
  ক

  GIP

  খ

  CCK

  গ

  gastrin

  ঘ

  secretin
• Pepsinogen secretion is stimulated by ______
  ক

  GIP

  খ

  CCK

  গ

  secretin

  ঘ

  gastrin
• Which of these hormones is not produced by the GI tract?
  ক

  MSH

  খ

  CCK

  গ

  GIP

  ঘ

  Secretin
• Which part of kidney produces erythropoietin?
  ক

  PCT

  খ

  DCT

  গ

  Juxtaglomerular apparatus

  ঘ

  Loop of Henle
• Which hormone is produced in the kidney?
  ক

  Angiotensinogen

  খ

  Erythropoietin

  গ

  Thrombopoietin

  ঘ

  Somatostatin
• Which of these hormones reduce blood pressure?
  ক

  Atrial natriuretic factor

  খ

  Adrenaline

  গ

  Noradrenaline

  ঘ

  Somatotropin
• What is the effect of secretion of ANS?
  ক

  Increases urination frequency

  খ

  Constricts blood vessels

  গ

  Dilates blood vessels

  ঘ

  Decreases urination frequency
• Which hormone is secreted by the heart?
  ক

  MSH

  খ

  CCK

  গ

  ANF

  ঘ

  PRL
• Which of these structures of heart secrete hormones?
  ক

  Bundle of His

  খ

  Ventricle

  গ

  SA node

  ঘ

  Atrium
• What is the name of the outer layer of the adrenal cortex?
  ক

  Zona reticularis

  খ

  Zona glomerulosa

  গ

  Zona fasciculata

  ঘ

  Zona pellucida
• Which of these substances does norepinephrine not stimulate the breakdown of?
  ক

  Glucose

  খ

  Lipids

  গ

  Proteins

  ঘ

  Glycogen
• Which of these is not an effect of catecholamine secretion?
  ক

  Piloerection

  খ

  Pupillary dilation

  গ

  Glycogen formation

  ঘ

  Increase in heart rate
• Which of these hormones would be rapidly secreted in a man if he was being chased by a dog?
  ক

  Somatostatin

  খ

  Somatotropin

  গ

  Epinephrine

  ঘ

  Prolactin
• Catecholamines are secreted by the ______
  ক

  posterior pituitary

  খ

  anterior pituitary

  গ

  adrenal cortex

  ঘ

  adrenal medulla
• T-lymphocytes provide cell-mediated immunity. True or false?
  ক

  True

  খ

  False