I. All cells possess cell wall.
II. All cells have ribosomes present inside.
III. All cells have well-organized nucleus.
IV. All cells have linear DNA molecules present in them.
Which of the statements given above is/are correct?
The question asks to identify the correct statements regarding cell structures applicable to all cells.
Cell Structure Statements Analysis
Let's analyze each statement:
- Statement I: All cells possess cell wall. This statement is incorrect. While plant cells, fungal cells, and bacterial cells have cell walls, animal cells do not.
- Statement II: All cells have ribosomes present inside. This statement is correct. Ribosomes are essential organelles responsible for protein synthesis and are found in virtually all living cells, both prokaryotic and eukaryotic.
- Statement III: All cells have well-organized nucleus. This statement is incorrect. Only eukaryotic cells possess a well-organized, membrane-bound nucleus. Prokaryotic cells, like bacteria, have their genetic material in a region called the nucleoid, which is not enclosed by a membrane.
- Statement IV: All cells have linear DNA molecules present in them. This statement is incorrect. Prokaryotic cells typically contain a single, circular DNA molecule. Eukaryotic cells contain multiple, linear DNA molecules organized into chromosomes within the nucleus.
Conclusion on Cell Statements
Based on the analysis, only Statement II is true for all cells.
Therefore, the correct option identifies Statement II as the only correct statement.
Important Questions from Cells
- Magnesium is a constituent metal of __________.
Which of the following substances can move across the cell membrane by diffusion?
Which of the following is NOT an example of osmosis?
The full form of SER, a cell organelle, which helps in the manufacture of fat molecules, or lipids, important for cell function is
In which of the following are CFCs NOT used?
