MCQ On Archaebacteria for NEET

MCQ On Archaebacteria for NEET |MCQ On NEET Biology class 11th |MCQ Questions for class 11 Biology chapter 2 , with answer | Check the below NCERT MCQ question for class 11 Biology Chapter 2 based Archaebacteria with answers.

MCQ Questions for class 11 Biology with Answers were prepared based on the latest pattern. We have provided class 11 Biology MCQ questions on Archaebacteria with answers to help students understand the concept very well.

Archaebacteria

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Introduction:-

Archaebacteria are a group of the most primitive prokaryotes found in most harsh habitats. Archaebacteria are of three major types : methanogens, halophiles and thermoacidophiles. Methanogens are obligate anaerobes found in gut of serval ruminant animals like cows and buffaloes. These bacteria are responsible for production of methane ( biogas ) from the dung of these animals. Halophiles are “salt -loving bacteria” as they are found to live in environment with a very high salt concentration. Thermoacidophiles are found in hot sulphur springs. Archaebacteria differ from other bacteria in having a different cell wall structure.

MCQ ON Archaebacteria for NEET 

Here are 15 multiple-choice questions (MCQs) related to Archaebacteria, along with their answers:

1. What domain do Archaebacteria belong to?
a) Eukarya
b) Bacteria
c) Archaea
d) Protista

Answer: c) Archaea

2. Which of the following environments is commonly inhabited by Archaebacteria?
a) Freshwater lakes
b) Human intestines
c) Extreme heat and acid conditions
d) Forest soil

Answer: c) Extreme heat and acid conditions

3. What is the cell wall composition of Archaebacteria?
a) Peptidoglycan
b) Cellulose
c) Chitin
d) Pseudopeptidoglycan

Answer: d) Pseudopeptidoglycan

4. Which of the following Archaebacteria is known for its ability to thrive in extreme saline environments?
a) Methanogens
b) Halophiles
c) Thermophiles
d) Sulfolobus

Answer: b) Halophiles

5. Archaebacteria are often referred to as “ancient bacteria” because:
a) They were the first life forms on Earth
b) They resemble the earliest known life forms
c) They are found only in ancient rock layers
d) They have been extinct for millions of years

Answer: b) They resemble the earliest known life forms

6. Which group of Archaebacteria is involved in methane production and found in anaerobic environments like the digestive tracts of animals?
a) Halophiles
b) Thermophiles
c) Methanogens
d) Psychrophiles

Answer: c) Methanogens

7. Archaebacteria are often classified into three main groups based on their preferred temperature ranges. Which of the following is NOT one of these groups?
a) Thermophiles
b) Psychrophiles
c) Mesophiles
d) Halophiles

Answer: d) Halophiles

8. Which of the following is a unique feature of Archaebacteria compared to other domains of life?
a) Presence of a true nucleus
b) Lack of membrane-bound organelles
c) Use of DNA for genetic information
d) Cell membrane composition

Answer: d) Cell membrane composition

9. Where can you commonly find Archaebacteria that thrive in extreme heat, such as hot springs?
a) Deep ocean trenches
b) Polar ice caps
c) Volcanic vents
d) Desert sand dunes

Answer: c) Volcanic vents

10. Which of the following is not a characteristic shared by all Archaebacteria?
a) Prokaryotic cells
b) Circular DNA
c) Lack of a cell wall
d) Ability to survive in extreme conditions

Answer: c) Lack of a cell wall

Conclusion :-

MCQ On Archaebacteria for NEET |What is the cell wall composition of Archaebacteria? a) Peptidoglycan , b) Cellulose , c) Chitin , d) Pseudopeptidoglycan , Answer: d) Pseudopeptidoglycan