Mast cells secrete from Biology Human Health and Disease

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 Multiple Choice QuestionsMultiple Choice Questions

51.

Consider the following four measure (A-D) that could be taken to successfully grow chickpea in an area where bacterial blight disease is common

A) spray with Bordeaux mixture

B) control of the insect vector of the disease pathogen

C) Use of only disease-free seeds

D) Use of varieties resistant to the disease

Which two fo the above measures can control the disease?

  • B and C

  • A and B

  • C and D

  • C and D

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52.

Which one of the following is the correct statement regarding the particular psychotropic drug specified

  • Hashish cause alter thought perceptions and hallucinations

  • Opium stimulates nervous system and cause hallucinations

  • Morphine leds to delusions and disturbed emotions

  • Morphine leds to delusions and disturbed emotions

247 Views

53.

To which type of barriers under innate immunity, do the saliva in the mouth and the tears the eyes, belong?

  • Cytokine barriers

  • cellular barriers

  • Physiological barriers

  • Physiological barriers

293 Views

54.

Human insulin is being commericially produced from a transgenic species of 

  • Escherichia

  • Mycobacterium 

  • Rhizobium

  • Rhizobium

352 Views

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55.

Ascaris is characterised by 

  • the absence of true coelom but the presence of metamerism

  • the presence of neither true coelom nor metamerism

  • the presence of true coelom but the absence of metamerism

  • the presence of true coelom but the absence of metamerism

474 Views

56.

If you suspect major deficiency of antibodies in a person, to which of the following would you look for confirmatory evidence?

  • Serum albumins

  • Serum globulins

  • Fibrinogen in the plasma

  • Fibrinogen in the plasma

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57.

The 'blue baby' syndrome results from

  • excess of chloride

  • methaemoglobin

  • excess of dissolved oxygen

  • excess of dissolved oxygen

459 Views

58.

A person showing unpredictable moods, outbursts of emotion, quarrelsome behaviour and conflicts with others is suffering from

  • schizophrenia

  • borderline personality disorder (BPD)

  • mood disorders

  • mood disorders

1130 Views

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59.

Mast cells secrete

  • hippurin

  • myoglobin

  • histamine

  • histamine


C.

histamine

Histamine is a protein, acting as a vasodilator (widening of blood vessels) in inflammatory and allergic reactions and also increases the permeability of small vessels. It is secreted from the mast cells which widely occur in the aerolar connective tissue.
Two other active substances secreted by mast cells are Heparin, a proteoglycan, which prevents coagulation of blood vessels and serotonin, a protein, which acts as vasoconstrictor to stop bleeding and to increase blood pressure.

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60.

HIV that causes AIDS, first starts destroying

  • B-lymphocytes

  • leucocytes

  • thrombocytes

  • thrombocytes

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