Home
Class 12
BIOLOGY
Cyanobacteria are...

Cyanobacteria are

A

heterotrophs

B

chemotrophs

C

autotrophs

D

organotrophs

Text Solution

Verified by Experts

The correct Answer is:
C
Cyanobacteria are photosynthetic, Gram negative prokaryotes. They have chlorophyll a and are probably major primary producers in the world's oceans. Hence, they are autotrophs.
Promotional Banner

Similar Questions

Explore conceptually related problems

Assertion (A) : Cyanobacteria are photosynthetic blue green algae which produce oxygen. Reason (R) : Cyanobacteria played a key role in the changes of atmospheric oxygen levels from So anaerobic to acerobic during the geologic periods.

Which of the following statements is/are incorrect ? (i) Cyanobacteria are autotrophic microbes widely distributed in aquatic and terrestrial habitats. (ii) Anabaena, Nostoc and Oscillatoria are photosynthetic N_(2) -fixing cyanobacteria. (iii) Tolypothrix (BGA) can increase rice production by about 20% (iv) BGA add organic matter to the soil and increase its fertility. (v) In our country, biofertilisers are not available commercially in the markets for farmers.

Identify the correct statements from the below I. Thermus aquatics is a bacterium which can tolerate high temperatures. (II) The first DNA polymerase enzyme was isolated from thermus aquatics. (III) T. aquatics used in polymerase chain reaction (PCR) for DNA amplification. (IV) Cyanobacteria are photosynthetic blue green algae.

Cyanobacteria is the main source of ................... .

Cyanobacteria is a biofertilizer-Justify.

What is the significance of cyanobacteria as a biofertilizer ?

Write a brief note on Cyanobacteria & its significances.

Cyanobacteria plays a major role in our ecology. Discuss.

What is the role of Cyanobacteria during early geologic periods?

Write notes on the association between cyanobacteria and coralloid root.