MCQ
‘Pathogens' are
  • A
    Substances produced against any disease causative
  • B
    Chemical substances produced by the host cells to kill the parasite animal
  • Disease spreading factors
  • D
    Cells which kill the parasites

Answer

Correct option: C.
Disease spreading factors
c
(c) Any disease producing agent or micro-organism is termed pathogen.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Assertion: The Leydig cells present outside the seminiferous tubules.
Reason: Leydig cells synthesise and secrete testicular hormones called androgens.
Match the following enzymes with their functions:
Column - lColumn - ll
(a) Restriction endonuclease(i) joins the DNA fragments
(b) Exonuclease(ii) extends primers on genomic DNA template
(c) DNA ligase(iii) cuts DNA at specific position
(d) Taq polymerase(iv) removes nucleotides from the ends of DNA
Select the correct option from the following: 
The largest part of the fallopian tube is
Anaphylactic shock is due to
One of the following does the same work as is done by nephridia in earthworm
In humans, the excretory system consists of a pair of kidneys, one pair of ureters, a urinary bladder and a urethra. Select correct option for kidneys:
(i) Kidneys are oval- shaped structures which are situated between the levels of last thoracic and third lumbar vertebra.
(ii) Through hilum ureter, blood vessels and nerves enter in kidney.
(iii) Inner to the hilum is a broad funnel – shaped space called the renal pelvis with projections called calyces.
(iv) The outer layer of kidney is a tough capsule.
(v) The medulla is divided into a few pyramids projecting into the calyx.
(vi) The medulla extends in cortex called columns of Bertini.
Members of class Reptilia are
Which one of the following is the correct statement for respiration in humans?
Ovulation takes place in/on
Which of the following hormones is responsible for hoarseness in voice, beard, mustaches etc. in males