Chemical Coordination and Integration

Hypersecretion of Growth Hormone in adults does not cause further increase in height, because

• Growth Hormone becomes inactive in adults

• Epiphyseal plates close after adolescence

• Bones loose their sensitivity to Growth Hormone in adults

• Bones loose their sensitivity to Growth Hormone in adults

Which of the following is an amino acid derived hormone?

• Epinephrine

• Ecdysone

• Estriol

• Estradiol

Which of the following gastric cells indirectly help in erythropoiesis?

• Chief cells

• Mucous cells

• Parietal cells

• Goblet cells

Endemic goitre is a state of

• normal thyroid function

• moderate thyroid function

• increased thyroid function

• decreased thyroid function

Hormone responsible for the secretion of milk after parturition is

• ACTH

• LH

• ICSH

• Prolactin

Gigantism and acromegaly are due to

• Hypothyroidism

• Hyperthyroidism

• Hypopituitarism

• Hyperpituitarism

During the propagation of a nerve impulse, the action potential results from the movement of

• K⁺ ions from extracellular fluid to intracellular fluid

• Na⁺ ions from intracellular fluid to extracellular fluid

• K⁺ ions from intracellular fluid to extracellular fluid

• Na⁺ ions from extracellular fluid to intracellular fluid

Which of the following hormone secretes a gastric secretion?

• Entero gastrone

• Gastrin

• CCK-PZ

• Villikinin

 Steroid hormones work as

• They enter into target cells and binds with specific receptor and ativate4s specific genes to form protein

• They bind to cell membrane

• They catalyse formation of cAMP

•  None of the above

Adrenaline and noradrenaline are hormones that act as

• Energy producing agents

• Food storage materials

• Neurotransmitters

• Energy storing substances