M C Q s D r i v e
03079682698
mcqsdrive@gmail.com
About
Contact

Contact Info

03079682698

mcqsdrive@gmail.com

Ad Banner

Biology 1525 MCQs [All-Courses]

thumb

Biology covers key concepts of life, organisms, and human systems with exam-focused notes for PPSC, FPSC, KPPSC, BPSC.,NTS, OTS, AJKPSC. Clear, concise topics help students prepare effectively for competitive tests.

All Topics  1525

Which of the following is not nocturnal?
A Bedbug
B Mosquito
C Butterfly
D Cockroach
Correct Answer: Butterfly
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
Correct Answer: Fucoxanthin, diatoxanthin, diadinoxanthin
Locomotion in diatoms is carried out with the help of__________?
A Valve
B Raphe
C Pseudopodium
D Cilia or flagella
Correct Answer: Raphe
Diatomaceous earth is used for making __________?
A Fertilizers
B Weedicides
C Insecticides
D Fire proof bricks
Correct Answer: Fire proof bricks
Diatoms stay afloat due to___________?
A Flagella
B Stored lpids
C Pseudopodia
D All of these
Correct Answer: Stored lpids
Oil body is found in the cells of___________?
A Diatoms
B Slime moulds
C Chlorophycean forms
D None of the these
Correct Answer: Diatoms
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
Correct Answer: Defined grana and stroma
Diatom frustule/ shell is made of_____________?
A Silica
B Calcium carbonate
C Manesium carbonate
D Both B. and C.
Correct Answer: Silica
Empty diatom cells are called___________?
A Raphe
B Valves
C Frustule
D Girdles
Correct Answer: Frustule
Cell wall is extremely well preserved in fossil specimens in__________?
A Diatoms
B Dinoflagellates
C Slime moulds
D None of these
Correct Answer: Diatoms
03079682698
mcqsdrive@gmail.com

Copyright @ 2026 MCQsDrive . All Rights Reserved.