Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents

Your guest activity stays on this device

Sign in to save progress →
Sign in

Biological Classification question

2005 · Q25
Guest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
  1. PYQ Library
  2. /NEET
  3. /Biology
  4. /Biological Classification
  5. /2005 · Q25

Biological Classification question

2005 · Q25

NEETBiologyBiological ClassificationMCQ+4 / −1
There exists a close association between the alga and the fungus within a lichen. The fungus
  1. A
    provides protection, anchorage and absorption for the algae
  2. B
    provides food for the alga
  3. C
    fixes the atmospheric nitrogen for the alga
  4. D
    releases oxygen for the alga
View written solutionFree

Correct answer: A

Lichens (coined by Theophrastus) are composite or dual organisms which are formed by a fungus partner or mycobiont (mostly ascomycetes) and an algal partner (mostly blue green algae). Fungus forms the body of lichen as well as its attaching and absorbing structures. Algae performs photosynthesis and provides food to the fungus.

PreviousNext

More from Biological Classification

  • Which of the following statements is not true for retroviruses?2004 · MCQ
  • Viruses that infect bacteria multiply and cause their lysis, are called2004 · MCQ
  • Phenetic classification of organisms is based on2004 · MCQ
  • A free living nitrogen-fixing cyanobacterium which can also symbiotic association with the water ferm Azolla is2004 · MCQ
  • During replication of a bacterial chromosome DNA synthesis starts from a replication origin site and2004 · MCQ
  • Lichens are well known combination of an alga and a fungus where fungus has2004 · MCQ
  • Phenetic classification of organisms is based on2003 · MCQ
  • Chromosomes in a bactertial cell can be 1 − 3 in number and2003 · MCQ