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.

1.

Alveolates have which of following distinctive structures under their membrane?

A. lysosomes
B. alveoli
C. vesicles
D. endoplasmic reticulum
Answer» C. vesicles
2.

Which of following protists are more closely related to animals than they are to other protists?

A. mycetozoans
B. Amoebozoans
C. Tubulinids
D. choanoflagellates
Answer» E.
3.

Which of following disorder is caused by Kinetoplastids in genus Trypanosoma?

A. alzheimer's disease
B. parkinson's disease
C. sleeping sickness
D. motion sickness
Answer» D. motion sickness
4.

Filamentous formation of which of following contributes to pond scum?

A. dinoflagellate
B. Volvox
C. chlamydomonas
D. diatoms
Answer» C. chlamydomonas
5.

In brown algae, stipe has which of following properties?

A. respiration
B. excretion
C. leaves
D. stem
Answer» E.
6.

Which of following use their cilia to move and feed?

A. diatoms
B. amoeba
C. apicomplexans
D. ciliates
Answer» E.
7.

Amoeba with lobed pseudopodia belongs to which of following protist supergroups?

A. Archaeplastida
B. sar
C. Unikonta
D. Streptomyces
Answer» D. Streptomyces
8.

Amoebozoan clade includes protists that have which of following characteristics?

A. inteRNAl skeleton
B. flagella
C. thread like pseudopodia
D. lobed pseudopodia
Answer» E.
9.

Which of following has used as human food too?

A. brown algae
B. golden algae
C. amoebas
D. diatoms
Answer» B. golden algae
10.

Complex interwoven filaments which delicate and feathery constitutes a multicellular body of a

A. brown algae
B. green algae
C. red algae
D. cyan algae
Answer» D. cyan algae
11.

Two shells which lie with each other, forming shape of a petri-dish is cell wall of

A. triatoms
B. diatoms
C. tetratoms
D. pentatoms
Answer» C. tetratoms
12.

Kingdom protist have four major groups of eukaryotic organisms, i.e. protozoa, algae, slime molds and

A. speromogonia
B. dimycotes
C. oomycotes
D. slime
Answer» D. slime
13.

Protozoa ingest their food by process of

A. paracytosis
B. exocytosis
C. endocytosis
D. ectocytosis
Answer» D. ectocytosis
14.

Which of following is a parasitic organism that occupies intestines of humans?

A. diatoms
B. giardia intestinalis
C. amoeba
D. e coli
Answer» C. amoeba
15.

Chondrus polysiphonia whose common name is red algae belongs to phylum

A. chordata
B. protozoa
C. parazoa
D. rhodophyta
Answer» E.
16.

Which of following is third leading cause of death due to amebic dysentery?

A. malaria
B. amebic dysentery
C. cholera
D. anthrax
Answer» C. cholera
17.

Cells of dinoflagellates are covered with shells of interlocking cellulose plates, which are impregnated with

A. calcium
B. silicates
C. phophorus
D. sulfates
Answer» C. phophorus
18.

Which of following strains of Entamoeba are pathogenic to humans?

A. e. histolytica
B. e coli
C. Dictyostelium
D. Halobacter
Answer» B. e coli
19.

How many known species are there of red algae?

A. 5000
B. 6000
C. 7000
D. 8000
Answer» C. 7000
20.

In brown algae, holdfast has which of following functions?

A. anchoring
B. respiration
C. excretion
D. leaves
Answer» B. respiration
21.

Which of following is a carrier of plasmodium that causes malaria?

A. anopheles mosquito
B. ticks
C. fleas
D. rabbits
Answer» B. ticks
22.

Which of following organisms are attacked nearly all animal species?

A. dinoflagellate
B. diatoms
C. amoeba
D. apicomplexans
Answer» E.
23.

What is large organized mass of DNA present in mitochondria of kinetoplastids called?

A. kinetoplast
B. chromosome
C. Mitomes
D. Mitosomes
Answer» B. chromosome
24.

Malaria in humans is caused by apicomplexan called

A. glycogen
B. plasmodium
C. anopheles
D. mosquito
Answer» C. anopheles
25.

Which of following are not classified as eukaryotes?

A. plants
B. animals
C. virus
D. protists
Answer» D. protists
26.

Which of following is an extremely diverse group and contains many eukaryotes such as animals, fungi and protists?

A. Opisthokonts
B. Amoebozoans
C. green algae
D. red algae
Answer» B. Amoebozoans
27.

Which of following source of energy is used by producers to produce organic compounds?

A. sunlight
B. water
C. oxygen
D. carbon dioxide
Answer» B. water
28.

Which of following types of Amoebozoans are parasites?

A. mycetozoans
B. Amoebozoans
C. Tubulinids
D. entamoeba
Answer» E.
29.

Diatoms belong to which of following supergroup of protists?

A. Archaeplastida
B. sar
C. Unikonta
D. Streptomyces
Answer» C. Unikonta
30.

Which of following can also feed on non-organic living matter detritus?

A. chlamydomonas
B. dinoflagellate
C. Tubulinids
D. mycetozoans
Answer» D. mycetozoans
31.

Which of following move in water with help of two spinning flagella?

A. dinoflagellate
B. diatoms
C. amoeba
D. brown algae
Answer» B. diatoms
32.

Eukaryotic flagella are extensions of which of following?

A. mitochondria
B. DNA
C. cytoplasm
D. cell membrane
Answer» D. cell membrane
33.

Which of following are a class of protists that feed using thread-like flagella and pseudopodia?

A. radiolarians
B. Rhizarians
C. forams
D. Cercozoans
Answer» E.
34.

Actinopods are made up of

A. silica
B. calcium
C. sulphur
D. granite
Answer» B. calcium
35.

Which of following is related to protists of Unikonts?

A. fungi
B. plants
C. bacteria
D. Archaean
Answer» B. plants
36.

Green algae stores energy in form of

A. sugar
B. starch
C. proteins
D. minerals
Answer» C. proteins
37.

Which is following is largest and most complex algae?

A. brown algae
B. golden algae
C. pink algae
D. white algae
Answer» B. golden algae
38.

Slime molds, appears slimy and stream on decaying logs and leaf litter due to presence of

A. plasmodium
B. calcium
C. starch
D. magnesium
Answer» B. calcium
39.

Slime molds are another name for which of following protists?

A. mycetozoans
B. Volvox
C. chlamydomonas
D. diatoms
Answer» B. Volvox
40.

Green algae are closely related to which of following?

A. bacteria
B. fungi
C. diatoms
D. land plants
Answer» E.
41.

Margulies and Schwartz have introduced new strategy of classification to accommodate all protists by listing

A. 27 phyla
B. 20 phyla
C. 15 phyla
D. 30 phyla
Answer» B. 20 phyla
42.

Which of following has two different types of nuclei, micronuclei, and macronuclei?

A. ciliates
B. diatoms
C. amoeba
D. apicomplexans
Answer» B. diatoms
43.

What is red pigment in red algae called?

A. Phycoerythrin
B. eosin
C. chlorophyll
D. hematoxylin
Answer» B. eosin
44.

Periods of extensive growth of dinoflagellates in water causes which of following phenomenon?

A. pink tide
B. yellow tide
C. red tide
D. brown tide
Answer» D. brown tide
45.

Red and green algae belong to which of following Supergroup?

A. Archaeplastida
B. Rhizarian
C. Stramenopila
D. Alveolata
Answer» B. Rhizarian
46.

Which of following move by using pseudopodia?

A. diatoms
B. amoeba
C. apicomplexans
D. ciliates
Answer» C. apicomplexans
47.

Plasmodium causes which of following disease?

A. Lyme disease
B. tuberculosis
C. anthrax
D. malaria
Answer» E.
48.

What are reduced mitochondria in diplomonads called?

A. plasmids
B. chromosome
C. Mitomes
D. Mitosomes
Answer» E.
49.

Which of following organisms have delicate symmetrical inteRNAl skeletons?

A. apicomplexans
B. ciliates
C. radiolarians
D. dinoflagellate
Answer» D. dinoflagellate
50.

Amoeba with thread-like pseudopodia belong to which of following subgroup of SAR clade?

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