Explore topic-wise MCQs in Biology.

This section includes 84 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

51.

What are porous shells of forams called?

A. cell wall
B. tests
C. pseudopodia
D. flagella
Answer» C. pseudopodia
52.

Approximately how many people die of malaria each year in tropics?

A. 100000
B. 10000
C. 5000
D. 50000
Answer» B. 10000
53.

Which of following is simplest type of chlorophytes that resemble gametes of higher chlorophytes?

A. chlamydomonas
B. dinoflagellate
C. diatoms
D. amoeba
Answer» B. dinoflagellate
54.

Land plants are responsible for producing approximately what percentage of total photosynthesis carried out in world?

A. 1
B. 0.5
C. 0.3
D. 0.1
Answer» C. 0.3
55.

Amoebas belong to which of following SAR subgroup?

A. Archaeplastida
B. Rhizarian
C. Stramenopila
D. Alveolata
Answer» C. Stramenopila
56.

Blue green algae and bacteria belong to kingdom

A. animalia
B. Monera
C. protista
D. protozoa
Answer» C. protista
57.

Five Kingdom system was modified by Margulies and

A. schwartz
B. Robert
C. F.Sanger
D. David
Answer» B. Robert
58.

Largest brown algae which is tough and leathery in its appearance is called the

A. kelps
B. elps
C. brown algae
D. green algae
Answer» B. elps
59.

Ciliates can reproduce sexually by process of

A. fertilization
B. binary fission
C. conjugation
D. budding
Answer» D. budding
60.

All Protists have no common ancestor, that?s why biologists regard them as

A. common protists
B. polyphyletic group
C. ancient protists
D. latest protists
Answer» C. ancient protists
61.

Flagellates which are sessile, marine and their single flagellum is covered by a collar is called

A. tetrad
B. choanoflagellates
C. aflagellates
D. diflagellate
Answer» C. aflagellates
62.

Parasite which is responsible for dysentery in humans is known as

A. aerobic ameoba
B. entameoba
C. entameoba histolytica
D. aerophillic
Answer» D. aerophillic
63.

Malaria is caused by bite of an infected female

A. Anopheles
B. leech
C. lice
D. bee
Answer» B. leech
64.

An example of an unicellular non-motile green algae is

A. brown algae
B. chorella
C. green algae
D. super blue algae
Answer» C. green algae
65.

Grey mud which gradually turns into chalk is actually dead

A. foramferans
B. miniferans
C. foraminiferans
D. macroferans
Answer» D. macroferans
66.

Radiolarians is an example of unicellular organism and its common name is

A. atipods
B. actipods
C. actinipods
D. nematodes
Answer» D. nematodes
67.

Thread like structures present on body of fungi is

A. mycelium
B. fungus
C. hyphae
D. molass
Answer» D. molass
68.

Myxomycota is also termed as

A. fungus
B. molds
C. water molds
D. slime molds
Answer» E.
69.

Diatoms are major producers and form aquatic

A. food
B. oxygen
C. food chain
D. silicates
Answer» D. silicates
70.

Water blooms formation is done by many species of

A. baccilus
B. cyanobacteria
C. streptolatoria
D. tetrad
Answer» C. streptolatoria
71.

Special organelle which plays an important role in regulation of water in freshwater ciliates is called

A. nucleus
B. contractile vacuole
C. mitochondria
D. centrioles
Answer» C. mitochondria
72.

A body which not have differentiated roots, stems, leaves and have no xylem or phloem at all is called a

A. core
B. vascular
C. thallus
D. pith
Answer» D. pith
73.

Late blight of potatoes is caused by a pathogen named as

A. phytophthora infestans
B. phytophthora
C. infestants
D. cortex
Answer» B. phytophthora
74.

Coloration of water orange, red or brown are red tides which are caused by

A. blooms
B. mud
C. dead plants
D. sea anemone
Answer» B. mud
75.

If euglenoids grow in dark due to lack of chblophyll, they get nutrients

A. autotrophically
B. herterotrophically
C. prasitically
D. hypotrophically
Answer» C. prasitically
76.

Which of following is present in form of supercell that is large and has multiple nuclei?

A. mycetozoans
B. Volvox
C. cellular slime molds
D. Plasmodian slime mold
Answer» E.
77.

Which of following protists have porous shells?

A. foraminiferans
B. Archaeplastida
C. Rhizarian
D. Stramenopila
Answer» B. Archaeplastida
78.

Which of following are main producers in aquatic communities?

A. algae
B. fish
C. plants
D. photosynthetic protists
Answer» E.
79.

How many species are included in chlorophyte group of green algae?

A. 2000
B. 3000
C. 7000
D. 1000
Answer» D. 1000
80.

Flagellates which are found in gut of termite and digest dry wood are called

A. dichonymphus
B. Trichonymphas
C. teranymphas
D. quadronymphus
Answer» C. teranymphas
81.

Pseudopodia is specialized cytoplasmic projections which is attribute of

A. paramecium
B. Ameoba
C. hydra
D. chlamydomonas
Answer» C. hydra
82.

African sleeping sickness is caused by a human parasite called

A. trysoma
B. panosoma
C. trypanosoma
D. dipanosoma
Answer» D. dipanosoma
83.

Most unusual protist phyla is

A. coflagellates
B. dinoflagellates
C. choanoflagellates
D. paraflagellates
Answer» C. choanoflagellates
84.

Water molds are another name of

A. oomycetes
B. mycetes
C. dicetes
D. monocetes
Answer» B. mycetes