How many organisms in the list given below are autotrophs?

Lactobacillus , Nostoc, Chara, Nitrosomonas, Nitrobacter, Streptomyces, Saccharomyces, Trypanosomes, Porphyra, Wolffia

  • Option 1)

    Four 

  • Option 2)

    Five 

  • Option 3)

    Six 

  • Option 4)

    Three 

 

Answers (2)
V Vakul

 

Cyano bacteria / Blue green algae -

  • Gram negative, photosynthetic, prokaryotes.
  • Contain chlorophyll – a, carotene, phycobilin.
  • Cell membrane lacks sterol.
  • Reserve food material is cyanophycin protein, Cyanophycean starch, lipid globules.
  • Non flagellate, moment by gliding motion,
  • Some of them can fix atmospheric nitrogen in heterocysts.

Eg. Nostoc and anabaena,

- wherein

Eg. Trichodesmium erythreum, Nostoc commune.

 

 Nitrosomonas and Nitrobacter are chemosynthetic autotrophs, and Nostoc, Chara, Porphyra and worffia are photosynthetic autotrophs


Option 1)

Four 

This is incorrect option

Option 2)

Five 

This is incorrect option

Option 3)

Six 

This is correct option

Option 4)

Three 

This is incorrect option

Six

Preparation Products

JEE Main Rank Booster 2021

This course will help student to be better prepared and study in the right direction for JEE Main..

₹ 13999/- ₹ 9999/-
Buy Now
Knockout JEE Main April 2021 (Subscription)

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 4999/-
Buy Now
Knockout JEE Main April 2021

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 22999/- ₹ 14999/-
Buy Now
Knockout JEE Main April 2022

An exhaustive E-learning program for the complete preparation of JEE Main..

₹ 34999/- ₹ 24999/-
Buy Now
Knockout BITSAT 2021

It is an exhaustive preparation module made exclusively for cracking BITSAT..

₹ 4999/- ₹ 2999/-
Buy Now
Exams
Articles
Questions