Question 2 of 10beginner🧠 RememberVery Short1 mark
What is the nature of cell-walls in diatoms?
Correct Answer
The cell walls in diatoms form two thin overlapping shells that fit together like a soap box. These walls are embedded with silica, which makes them indestructible.
Exercise: EXERCISES | Q: 3 | (Page 13)
For More Understanding
Explanation
According to NCERT Biology textbook (section 2.2.1 Chrysophytes), diatoms have unique cell walls that consist of two thin overlapping shells fitting together as in a soap box. The key characteristic is that these walls are embedded with silica, making them indestructible. This is why diatoms leave behind large amounts of cell wall deposits called 'diatomaceous earth' in their habitat over billions of years.