Which of the following is a correct statement?
- Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.
- Bacteria are exclusively heterotrophic organisms
- Slime moulds are saprophytic organisms classified under Kingdom Monera.
- Mycoplasma have DNA, Ribosome and cell wall
The Correct Option is A
Solution and Explanation
To determine the correct statement, we need to evaluate each option based on biological knowledge:
- Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.
Cyanobacteria, also known as blue-green algae, are indeed a group of photosynthetic bacteria. They possess chlorophyll and can perform photosynthesis, making them autotrophic. Moreover, they are classified under the Kingdom Monera, which includes all prokaryotic organisms. This statement is correct.
- Bacteria are exclusively heterotrophic organisms.
This statement is incorrect. While many bacteria are heterotrophic and obtain their food from organic sources, others are autotrophic, such as the cyanobacteria mentioned above, which can produce their own food through photosynthesis or chemosynthesis.
- Slime moulds are saprophytic organisms classified under Kingdom Monera.
Slime moulds are indeed saprophytic, meaning they feed on decaying organic matter. However, they are not classified under the Kingdom Monera. Slime moulds belong to the Kingdom Protista, not Monera. Hence, this statement is incorrect.
- Mycoplasma have DNA, Ribosome and cell wall.
Mycoplasma is a genus of bacteria lacking a cell wall around their cell membrane, which makes them unique among bacterial species. They do have DNA and ribosomes, but the absence of a cell wall means this statement is incorrect.
Therefore, the correct statement is: Cyanobacteria are a group of autotrophic organisms classified under Kingdom Monera.
Top Questions on kingdom monera
- A specific organism [A] showing the lack of cell wall, survive without oxygen, pleomorphic. The other organism [B] has cell wall embedded with silica and indestructible. A and B respectively belong to
- AP EAPCET - 2023
- Botany
- kingdom monera
- All monerons
- JIPMER MBBS - 2017
- Biology
- kingdom monera
- Archaebacteria differ from eubacteria in:
- NEET (UG) - 2014
- Biology
- kingdom monera
- The motile bacteria are able to move by
- NEET (UG) - 2014
- Biology
- kingdom monera
- The most abundant prokaryotes helpful to humans in making curd from milk and in production of antibiotics are the ones categorised as
- NEET (UG) - 2012
- Biology
- kingdom monera
Questions Asked in NEET exam
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
- NEET (UG) - 2025
- Pendulums
- 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
- 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
- A wire of resistance \(R\) is cut into 8 equal pieces. From these pieces, two equivalent resistances are made by adding four of these together in parallel. Then these two are added in series. The net effective resistance of the combination is:
- NEET (UG) - 2025
- Resistance
- An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature \(27^\circ\)C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, \(R = \frac{100}{12} \text{ J mol}^{-1} \text{K}^{-1}\), and molecular mass of \(O_2 = 32 \text{ g/mol}\), 1 atm pressure = \(1.01 \times 10^5 \text{ N/m}^2\)]
- NEET (UG) - 2025
- Ideal-gas equation and absolute temperature
Concepts Used:
Kingdom Monera
Characteristics of Monera Kingdom
The organisms in this kingdom have the following characteristics: -
- Monerans are single-celled creatures.
- The cell wall is made up of peptidoglycan and is stiff.
- Binary fission is asexual reproduction.
- They have 70S ribosomes in them.
- The locomotory organ is the flagella.
- Organelles such as mitochondria, lys
- osomes, plastids, Golgi bodies, endoplasmic reticulum, centrosome, and others are not present.
- These are decomposers and mineralizers for the environment
