Biology MCQs

1496 MCQs  — Everyday Science MCQs  (Page 141 of 150)

Diatoms stay afloat due to___________?
A. Flagella
B. Stored lpids
C. Pseudopodia
D. All of these
Diatomaceous earth is used for making __________?
A. Fertilizers
B. Weedicides
C. Insecticides
D. Fire proof bricks
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
Oil body is found in the cells of___________?
A. Diatoms
B. Slime moulds
C. Chlorophycean forms
D. None of the these
Diatom frustule/ shell is made of_____________?
A. Silica
B. Calcium carbonate
C. Manesium carbonate
D. Both b. and c.