Biology MCQs
Biology MCQs Test Preparation | Latest 2025 Quiz FPSC, NTS, KPPSC, PPSC, SPSC, BPSC, OTS, UTS, PTS, CTS, ATS, ETEA MCQs Test Questions.
Diatom frustule/ shell is made of_____________?
A: Silica
B: Calcium carbonate
C: Manesium carbonate
D: Both
E: B. and C.
Silica
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
Defined grana and stroma
Oil body is found in the cells of___________?
A: Diatoms
B: Slime moulds
C: Chlorophycean forms
D: None of the these
Diatoms
The wax present on the body of cockroach is secreted:
A: Mucocytes
B: Leucocytes
C: Oenocytes
D: Granulocytes
Oenocytes
Which organisms are sometimes called the pastures of the sea?
A: Diatoms
B: Radiolarians
C: Dinoflagellates
D: Foraminiferans
Diatoms
Diatoms belong to___________?
A: Chrysophyta
B: Bacillariophyceae
C: Xanthophyceae
D: Both A. and B.
Both 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
Pinnularia, Navicula, Cymbella, Melosira
Diatoms are found in__________?
A: Phytoplanktonic population
B: Freshwater lakes and ponds
C: Marine environment
D: All of the above
All of the above
Centric discoid form of diatoms is__________?
A: Diplaneis
B: Coscinodiscus
C: Camphyloneiscus
D: Stephanodis
Coscinodiscus
Microfossile often present in petroleum producing formationsare those of__________?
A: Diatioms
B: Heliozoans
C: Radiolarians
D: Foraminiferans
Diatioms