A. Phytoplanktonic population
B. Freshwater lakes and ponds
C. Marine environment
D. All of the above
Related Mcqs:
- Diatoms belong to___________?
A. Chrysophyta
B. Bacillariophyceae
C. Xanthophyceae
D. Both A. and B. - Which one of the following is representing the group of diatoms?
A. Pinnularia, Navicula, Cymbella, Melosira
B. Euglenamorpha, Hedneria , Heteronema, Colacium
C. Nostoc, Anabaena, Aulosira, Cylindrospermum
D. Cochlodinium, Gymnodinium, Lenodinium, Peridinium - Centric discoid form of diatoms is__________?
A. Diplaneis
B. Coscinodiscus
C. Camphyloneiscus
D. Stephanodis - Unlike other algae, diatoms do not readily decay due to___________?
A. Nonliving cells
B. Siliceous wall
C. Mucilaginous wall
D. Water proof cell - The chloroplasts of diatoms and chrysophycean algae do not possess____________?
A. Chloryphyllpigments
B. Enzymes for photolysis
C. Defined grana and stroma
D. Carotenes with chlorophylls - Diatoms stay afloat due to___________?
A. Flagella
B. Stored lpids
C. Pseudopodia
D. All of these - Locomotion in diatoms is carried out with the help of__________?
A. Valve
B. Raphe
C. Pseudopodium
D. Cilia or flagella - Golden brown colour of diatoms is due to presence of__________?
A. Mycoxanthin, mucoxanthin and myxoxanthophylls
B. Alpha and beta carotenes and myxoxanthin
C. Fucoxanthin, diatoxanthin, diadinoxanthin
D. None of the above - Ribosomes are assembled in__________?
A. Nucleolus
B. Nucleus
C. DNA
D. RNA - Cell wall is extremely well preserved in fossil specimens in__________?
A. Diatoms
B. Dinoflagellates
C. Slime moulds
D. None of these
