Download App

STD 11 - 2. Biology classification — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 11 - 2. Biology classification4 Marks
MCQ
How many organisms in the list given below show autrophic nutrition method? Lactobacillus, Nostoc, Chara, wolffia, Nistrosomonas, Nitrobacter, porphyra Streptococus, Saccharomyces, Trypanosoma,
  • A
    Four
  • B
    Five
  • ✓
    Six
  • D
    Three
✓

Answer

Correct option: C.
Six
c
Autotrophic bacteria synthesize their cell constituents using carbon dioxide as the carbon

source.

From the list, autotrophic bacteria include a total of six as Chara, Nostoc, Porphyra, Wolfia, Nitrosomonas, Nitrobacter. Of these Chara, Nostoc, Porphyra, Wolfia is photoautotrophs while Nitrosomonas, Nitrobacter are chemoautotrophs. The other four (Lactobacillus, Streptomyces, Saccharomyces, Trypanosoma) are heterotrophs meaning they utilize organic compounds as a source of food.

Thus, the correct answer is option C.

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

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Plant growth is unique because
→
Statement I: The chemiosmotic hypothesis has been put forward to explain the mechanism of ATP synthesis in both respiration and photosynthesis
Statement II: Like in respiration, in photosynthesis too, ATP synthesis is linked to development of a proton gradient across a membrane
→
During the metaphase stage of mitosis, spindle fibres attach to chromosomes at
→
Statement I: Bark includes secondary phloem.
Statement II: Bark that is formed early in the season is called early or soft bark.
→
The main difference between active and passive transport across cell membrane is:
→
If natality rate is parallel to mortality rate then population
→
Which of the following is the least likely to be involved in stabilising the three­dimensional folding of most proteins?
→
$I.$ Biochemical adaptation are seen in organisms living in great depth of the ocean to face crushing pressure

$II.$ Allen's rule is explain mammals living in colder climates

$III.$ Altitude sickness is caused because of body not getting enough oxygen due to low atmospheric pressure at high altitude

$IV.$ Desert lizards lack behavioural means to manage to their body temperature

Choose the correct option for above adaptations

→
Pineapple can be made to flower in off season by
→
Use of bioresources by multinational companies and organisations without authorisation from the concerned country and its people is called
→