Diatoms belong to___________?

Related Mcqs:

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

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

2. Diatoms stay afloat due to___________?

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

3. Bats & humming birds belong to___________?

   A. Endotherms B. Ectotherms C. Heterotherms D. Homeotherms...

4. 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...

5. Diatoms are found in__________?

   A. Phytoplanktonic population B. Freshwater lakes and ponds C. Marine environment D. All of the above...

6. Centric discoid form of diatoms is__________?

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

7. 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...

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

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

9. 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...

10. The DNA fragments have sticky ends due to___________?

    A. Endonuclease B. Unpaired bases C. Calcium ions D. Free methylation Submitted by: Maria Aziz...