Explore topic-wise MCQs in Biology Mcqs.

This section includes 27 Mcqs, each offering curated multiple-choice questions to sharpen your Biology Mcqs knowledge and support exam preparation. Choose a topic below to get started.

1.

Which of the following statement about Kingdom Protista is incorrect?

A. Their members have characteristics which separate them from other kingdoms
B. They only include unicellular aquatic eukaryotic organisms.
C. They do not develop from Blastula or embryo.
D. They contain ancestors for fungi plants & animals
Answer» C. They do not develop from Blastula or embryo.
2.

Who first separated bacteria from other protists as a group?

A. John Hogg
B. Ernst Haeckel
C. Margulis and Schwartz
D. Herbert Copeland
Answer» E.
3.

Which of the protozoa has a striking resemblance to collar cells in sponges?

A. Zooflagellates
B. Choanflagellates
C. Trypanosomoa
D. Trichonymphas
Answer» C. Trypanosomoa
4.

Radiolarians belong to which of the following protozoal group?

A. Zooflagellates
B. Actinopods
C. Foraminifera
D. Apicomplexans
Answer» C. Foraminifera
5.

Which of the following statement about eiliates in incorrect?

A. Contain mainly unicellular organisms.
B. Their contractile vacoule is respobsible for water regulation.
C. They are even capable of sexual reproduction.
D. Diploid nucleus being smaller is responsible for cells metabolism and growth while polyploidy nucleus functions in sexual process.
Answer» E.
6.

Lime stone deposits are formed from

A. Zooflagellates
B. Foraminferans
C. Aetinopods
D. Apicomplexans
Answer» C. Aetinopods
7.

Plasmodium belongs to

A. Ciliates
B. Apicomplexans
C. Actinopods
D. Foraminferans
Answer» C. Actinopods
8.

Kingdom protista includes ______ phyla

A. 27
B. 28
C. 26
D. 29
Answer» B. 28
9.

Stentor is a/an

A. Ciliate
B. Foraniniferan
C. Actinopods
D. Apicomplexan
Answer» B. Foraniniferan
10.

Complex specialized flagellates living symbiotically in the gut of termites are

A. Trichonymphas
B. Trypanosoma
C. Euglena
D. Radiolarians
Answer» B. Trypanosoma
11.

The drfinite shape to ciliates is given by

A. Pellicle
B. Penicle
C. Calcium
D. Cell wall
Answer» B. Penicle
12.

Chalk is gradually formed of dead

A. Actinopods
B. Foraminiferans
C. Apicomplexans
D. Radiolarians
Answer» C. Apicomplexans
13.

Of the following which one has glassy shells?

A. Radiolarians
B. Forams
C. Both of these
D. None of these
Answer» B. Forams
14.

Most of the photosynthesis on earth is carried by

A. Kelps
B. Gymnosperms
C. Angiosperms
D. Algae
Answer» E.
15.

Which of the following statement is incorrect about algae?

A. Their zygote unlike plants is protected by parental tissue.
B. Their classification is based on pigment composition.
C. Most of them have different morphological forms in-different stages of their life cycle.
D. Almost all of them are aquatic.
Answer» B. Their classification is based on pigment composition.
16.

The only group of algae having no flagellated motile cells at any stage is :

A. Chrysophyta
B. Phaeophyta
C. Pyrrophyta
D. Rhodophyta
Answer» E.
17.

Brown algae are also known as

A. Phaeophyta
B. Rhodophyta
C. Pyrrophyta
D. Chrysophyta
Answer» B. Rhodophyta
18.

Golden algae are also known as

A. Chrysophyta
B. Phaeophyta
C. Pyrrophyta
D. Rhodophyta
Answer» B. Phaeophyta
19.

Based on molecular data euglenoids are thought to be closely related to

A. Dinoflagellates
B. Zooflagellates
C. Protozoans
D. Algae
Answer» C. Protozoans
20.

All phostosynthetic euglenoids lose their chlorophyll when grown in dark and obtain their nutrients heterotrophically this statement is

A. True
B. False
C. May be true may be false
D. Unpredictable
Answer» C. May be true may be false
21.

Most dinoflagellates are

A. Unicellular
B. Multicellular
C. Both of these
D. Zooflagellates
Answer» B. Multicellular
22.

The most important group of producers in marine ecosystem is of

A. Diatoms
B. Euglenoids
C. Dinoflagellates
D. Brown algae
Answer» B. Euglenoids
23.

Of the following which one is not the characteristic of dinoflagellates

A. Most of them are unicellular
B. They have blooms
C. Their cells are often covered with shells of interlocking cellulose plates impregnated with calcium
D. None of these
Answer» D. None of these
24.

Examples of Rhodophytes are

A. Chondrus
B. Polysiphonia
C. Both of these
D. Pinnularia
Answer» D. Pinnularia
25.

In chlorophytes the main energy stores are

A. Cellulose
B. Starch
C. Glycogen
D. All of these
Answer» C. Glycogen
26.

In slime molds spores develop into

A. Swarm cells
B. Biflagellated cells
C. Amoeboid reproductive cells
D. All of these
Answer» E.
27.

Spores produced by slime molds are

A. Haploid
B. Diploid
C. Triploid
D. None of these
Answer» B. Diploid