Free MCQs & Online Quiz Practice for Exams

Q: The lipopolysaccharide layer (LPS) is a characteristic of the wall of

A) Archaeal cells

B) Gram-negative bacteria

C) Bacterial prokaryotic cells

D) Eukaryotic cells

Q: An extra-chromosomal DNA ring in bacteria is called

A) Nucleoid

B) Plasmid

C) Pili

D) Mesosome

Q: In photoautotrophic bacteria the source of hydrogen in photosynthesis is

A) H₂O

B) H₂S₂

C) H₂O₂

D) H₂SO₄

Q: In bacteria fastest growth occurs in the phase called

A) Log phase

B) Lag phase

C) Stationary phase

D) Decline phase

Q: The reproduction in which the genetic material is transmitted from a donor to a recipient bacterium through a phage is called

A) Transformation

B) Conjugation

C) Binary fission

D) Transduction

Q: The protist which lives in the gut of termites and digests wood belongs to the group

A) Euglenozoa

B) Kinetoplastid

C) Stramenopila

D) Rhodophyta

Q: Which of the following is the infective stage of malarial parasite?

A) Merozoites

B) Sporozoites

C) Oocyst

D) Ookinetes

Q: Plasmodium of slime molds contains

A) One haploid nucleus

B) Two diploid nuclei

C) Many haploid nuclei

D) Many diploid nuclei

Q: Symptoms of malaria appear when

A) Gametes are produced

B) Red blood cells burst

C) Sporozoites enter the liver

D) Oocyst is formed

Q: Presence of air bladder is associated with which of the following organism?

A) Paramecium

B) Euglena

C) Volvox

D) Kelps

Q: In nuclear mitosis of fungi, the nuclear membrane

A) Dissolves

B) Remains intact

C) Shrinks

D) Fuses with genetic material

Q: Dikaryon is a cell in fungi containing

A) One diploid nucleus

B) Two diploid nuclei

C) One haploid and one diploid nuclei

D) Two haploid nuclei

Q: Mitochondria most likely evolved by

A) Photosynthetic cyanobacterium

B) Cytoskeletal elements

C) Endosymbiosis

D) Membrane proliferation

Q: The closest relative of fungi are probably

A) Slime molds

B) Mosses

C) Green algae

D) Animals

Q: What term describes the close association of a fungus with the root of a tree?

A) Rhizoid

B) Lichen

C) Mycorrhiza

D) Endophyte

Q: Members of which phylum produce a club shaped structure that contains spores?

A) Chytridiomycota

B) Basidiomycota

C) Glomeromycota

D) Ascomycota

Q: In bryophytes the male reproductive organ is known as:

A) Stamen

B) Antheridium

C) Carpel

D) Archegonium

Q: The plants in which the seeds are enclosed in the fruit are:

A) Gymnosperms

B) Angiosperms

C) Bryophytes

D) Tracheophytes

Q: The flower in which both the male and female reproductive parts are present is termed as:

A) Staminate

B) Pistilate

C) Hermaphrodite

D) Heterogamous

Q: The microspore produced in the microsporangia germinates to form:

A) Male gametophytes

B) Female gametophytes

C) Sporophyte

D) Embryophyte