Diatoms are found in__________?

Related Mcqs:

1. Diatoms belong to___________?

   A. Chrysophyta B. Bacillariophyceae C. Xanthophyceae D. Both A. and B....

2. 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...

3. Centric discoid form of diatoms is__________?

   A. Diplaneis B. Coscinodiscus C. Camphyloneiscus D. Stephanodis...

4. Unlike other algae, diatoms do not readily decay due to___________?

   A. Nonliving cells B. Siliceous wall C. Mucilaginous wall D. Water proof cell...

5. 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...

6. Diatoms stay afloat due to___________?

   A. Flagella B. Stored lpids C. Pseudopodia D. All of these...

7. Locomotion in diatoms is carried out with the help of__________?

   A. Valve B. Raphe C. Pseudopodium D. Cilia or flagella...

8. 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...

9. Ribosomes are assembled in__________?

   A. Nucleolus B. Nucleus C. DNA D. RNA...

10. Cell wall is extremely well preserved in fossil specimens in__________?

    A. Diatoms B. Dinoflagellates C. Slime moulds D. None of these...