Archaebacteria differ from eubacteria in
Show Hint
Archaebacteria have different cell membrane structures than other bacteria. The lipids in archaebacteria cell membranes are ether-linked compared to ester-linked in other bacteria. Archaebacteria are similar to bacteria in morphology, structure, shape, mode of reproduction, and nutrition.
- cell membrane structure
- mode of nutrition
- cell shape
- mode of reproduction.
The Correct Option is A
Solution and Explanation
Archaebacteria differ from eubacteria in cell membrane structure.
The archaebacteria are considered to be the 'ancient' bacteria that comprise extremophiles like methanogens, halophiles, and thermophiles. They represent some of the most ancient life forms that continue to exist today. Generally, archaebacteria have the same shape, size, nutrition, and appearance as bacteria. They multiply by the means of binary fission.
However, archaebacteria cell walls lack peptidoglycan. They also have different membrane lipid bonds in comparison to bacteria and eukarya. Archea membrane lipids have ether bonds whereas bacteria have ester-linked lipids.
Therefore, the correct answer is option A.
Top Questions on biological classification
- ICBN refers to?
- TS EAMCET - 2025
- Biology
- biological classification
- Which of the following microorganisms is used in the production of curd from milk?
- MHT CET - 2025
- Biology
- biological classification
- In a DNA molecule, which of the following base-pairings is correct?
- MHT CET - 2025
- Biology
- biological classification
- Which is not a prime element?
- MHT CET - 2025
- Biology
- biological classification
- Study the following and pick up the correct combinations:
- TS EAMCET - 2024
- Zoology
- biological classification
Questions Asked in NEET exam
- The plates of a parallel plate capacitor are separated by d. Two slabs of different dielectric constant \(K_1\) and \(K_2\) with thickness \(d/2\) and \(d/2\) respectively are inserted in the capacitor. Due to this, the capacitance becomes two times larger than when there is nothing between the plates. If \(K_1 = 1.25 K_2\), the value of \(K_2\) is :
- NEET (UG) - 2025
- Capacitors and Capacitance
- Two cities X and Y are connected by a regular bus service with a bus leaving in either direction every T min. A girl is driving scooty with a speed of 60 km/h in the direction X to Y. She notices that a bus goes past her every 30 minutes in the direction of her motion, and every 10 minutes in the opposite direction. Choose the correct option for the period T of the bus service and the speed (assumed constant) of the buses.
- NEET (UG) - 2025
- Relative Velocity
- A microscope has an objective of focal length \(f_o = 2\) cm and an eyepiece of focal length \(f_e = 4\) cm. The tube length of the microscope is \(L = 40\) cm. If the distance of distinct vision of eye is \(D = 25\) cm, the magnification in the microscope is:
- NEET (UG) - 2025
- Optical Instruments
- De-Broglie wavelength of an electron orbiting in the \(n = 2\) state of hydrogen atom is close to (Given Bohr radius = 0.052 nm):
- NEET (UG) - 2025
- de broglie hypothesis
- A uniform rod of mass 20 kg and length 5 m leans against a smooth vertical wall making an angle of \(60^\circ\) with it. The other end rests on a rough horizontal floor. The friction force that the floor exerts on the rod is (take \(g = 10\) m/s\(^2\)):
- NEET (UG) - 2025
- Common forces in mechanics
Concepts Used:
Biological Classification
The process of grouping living organisms into categories is called biological classification. The most modern 5-kingdom classification was put ahead by an eminent scientist R.H.Whittaker. The five-kingdom classification is based on the criteria like cell structure, mode of nutrition, body form, and reproduction. One of the most important characteristics of this system is that it follows the evolutionary sequence of living organisms. The organisms are classified into distinct taxa or levels like Kingdom, Phylum, Division, Class, Order, Family, Genus, and Species. The 5 kingdoms are as follows:
