Prepare for NEET Biology Biological Classification with MCQs & PYQs on NEET.GUIDE. Get free practice, previous year questions, and expert guidance to classify and identify organisms.
Which protist group is characterized by a cell wall made of silica?
Dinoflagellates
Diatoms
Slime moulds
Euglenoids
Which of the following algal groups has a cell wall composed of hydrated silica forming two overlapping valves?
Cyanobacteria
Diatoms
Dinoflagellates
Rhodophyta
The frustule, a characteristic feature of diatoms, is primarily composed of which substance?
Cellulose
Chitin
Silica
Pectin
Analyse the following statement and identify the correct option given below
I. In diatoms the walls are embedded with silica and thus, the walls are indestructible
II. Diatoms have left behind large amount of cell wall deposits in their habitat, this accumulation over billions of year is referred to as diatomaceous deposition or diatomaceous earth
I is true, but II is false
I is false, but II is true
I and II are true
I and II are false
Analyse the following statement and identify the correct option given below
I. In diatoms the walls are embedded with silica and thus, the walls are indestructible
II. Diatoms have left behind large amount of cell wall deposits in their habitat, this accumulation over billions of year is referred to as diatomaceous deposition or diatomaceous earth
I is true, but II is false
I is false, but II is true
I and II are true
I and II are false
