Diatoms are also called as ‘pearls of ocean’, why? What is diatomaceous earth?
Diatoms are chief procedure of ocean and marine water thus they are known as ‘Pearls of Ocean’.
The cell wall of Diatoms are made of cellulose in which Silica particles are embedded in at various places. Their cell wall have silica in very large quantity, due to this reason cell wall appears hard. Cell wall do not get destroyed after their death, so at the bottom of the sea, accumulation of large deposits of diatoms are formed that forms a siliceous covering is known as “Diatomaceous Earth” or “Diatomite” or “Keiselgurh”.
NCERT questions are designed to test your understanding of the concepts and theories discussed in the chapter. Here are some tips to help you answer NCERT questions effectively:
Diatoms are chief procedure of ocean and marine water thus they are known as ‘Pearls of Ocean’.
The cell wall of Diatoms are made of cellulose in which Silica particles are embedded in at various places. T...
Step-by-step explanation:
• Diatoms are chief procedure of ocean and marine water thus they are known as ‘Pearls of Ocean’
•
•
• The cell wall of Diatoms are made of cellulose in which Silica particles are embedded in at various places
• Their cell wall have silica in very large quantity, due to this reason cell wall appears hard
This question is important because it tests key concepts from the NCERT syllabus and is frequently asked in CBSE exams.
This question is based on core NCERT concepts explained in the chapter and should be revised thoroughly before exams.
Students often lose marks by skipping steps, writing incomplete explanations, or misunderstanding keywords used in the question.
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