Question:
Choose the correct statements regarding cell organelles and their inclusions.
A. The endomembrane system includes Golgi complex, endoplasmic reticulum and mitochondria.
B. Rough endoplasmic reticulum bears ribosomes on its surface.
C. Both mitochondria and plastids have circular DNA.
D. A network of microtubules, microfilaments and intermediate filaments present in the cytoplasm is called cytoskeleton.
E. Mitochondrion is a single membrane-bound structure.
Choose the correct answer from the options given below :
Choose the correct statements regarding cell organelles and their inclusions.
A. The endomembrane system includes Golgi complex, endoplasmic reticulum and mitochondria.
B. Rough endoplasmic reticulum bears ribosomes on its surface.
C. Both mitochondria and plastids have circular DNA.
D. A network of microtubules, microfilaments and intermediate filaments present in the cytoplasm is called cytoskeleton.
E. Mitochondrion is a single membrane-bound structure.
Choose the correct answer from the options given below :
A. The endomembrane system includes Golgi complex, endoplasmic reticulum and mitochondria.
B. Rough endoplasmic reticulum bears ribosomes on its surface.
C. Both mitochondria and plastids have circular DNA.
D. A network of microtubules, microfilaments and intermediate filaments present in the cytoplasm is called cytoskeleton.
E. Mitochondrion is a single membrane-bound structure.
Choose the correct answer from the options given below :
Show Hint
Logic Tip: The Endomembrane system acronym: \textbf{GERL-V} (Golgi, ER, Lysosome, Vacuole). Mitochondria are independent powerhouses, not part of this coordinated factory line. Knowing A is false eliminates options 1 and 2.
Updated On: May 3, 2026
- A, B and C only
- A and B only
- C, D and E only
- B, C and D only
Show Solution
Verified By Collegedunia
The Correct Option is D
Solution and Explanation
Concept:
Eukaryotic cells are highly compartmentalized with various organelles performing specific functions. Differentiating between organelles based on their membrane structure, components, and functional coordination is key.
Step 1:
The endomembrane system consists of organelles whose functions are coordinated. This includes the endoplasmic reticulum (ER), Golgi complex, lysosomes, and vacuoles. Mitochondria, chloroplasts, and peroxisomes are not part of the endomembrane system because their functions are not coordinated with the others. Statement A is incorrect.
Step 2:
The endoplasmic reticulum bearing ribosomes on its cytoplasmic surface is termed Rough Endoplasmic Reticulum (RER). The presence of ribosomes gives it a "rough" appearance under an electron microscope, and it is actively involved in protein synthesis. Statement B is correct.
Step 3:
Both mitochondria and plastids (like chloroplasts) are semi-autonomous organelles. According to the endosymbiotic theory, they possess their own genetic material, which is a single, circular, double-stranded DNA molecule, similar to bacterial DNA. Statement C is correct.
Step 4:
An elaborate network of filamentous proteinaceous structures consisting of microtubules, microfilaments, and intermediate filaments present in the cytoplasm is collectively referred to as the cytoskeleton. It provides mechanical support, motility, and maintenance of cell shape. Statement D is correct.
Step 5:
A mitochondrion is a double membrane-bound structure, possessing an outer continuous membrane and an inner membrane folded into cristae. It is not single membrane-bound. Statement E is incorrect.
Step 6:
The correct statements are B, C, and D. This corresponds to Option (4).
Eukaryotic cells are highly compartmentalized with various organelles performing specific functions. Differentiating between organelles based on their membrane structure, components, and functional coordination is key.
Step 1:
The endomembrane system consists of organelles whose functions are coordinated. This includes the endoplasmic reticulum (ER), Golgi complex, lysosomes, and vacuoles. Mitochondria, chloroplasts, and peroxisomes are not part of the endomembrane system because their functions are not coordinated with the others. Statement A is incorrect.
Step 2:
The endoplasmic reticulum bearing ribosomes on its cytoplasmic surface is termed Rough Endoplasmic Reticulum (RER). The presence of ribosomes gives it a "rough" appearance under an electron microscope, and it is actively involved in protein synthesis. Statement B is correct.
Step 3:
Both mitochondria and plastids (like chloroplasts) are semi-autonomous organelles. According to the endosymbiotic theory, they possess their own genetic material, which is a single, circular, double-stranded DNA molecule, similar to bacterial DNA. Statement C is correct.
Step 4:
An elaborate network of filamentous proteinaceous structures consisting of microtubules, microfilaments, and intermediate filaments present in the cytoplasm is collectively referred to as the cytoskeleton. It provides mechanical support, motility, and maintenance of cell shape. Statement D is correct.
Step 5:
A mitochondrion is a double membrane-bound structure, possessing an outer continuous membrane and an inner membrane folded into cristae. It is not single membrane-bound. Statement E is incorrect.
Step 6:
The correct statements are B, C, and D. This corresponds to Option (4).
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