Explore topic-wise MCQs in Biology.

This section includes 275 Mcqs, each offering curated multiple-choice questions to sharpen your Biology knowledge and support exam preparation. Choose a topic below to get started.

151.

Which of the following fungi makes symbiotic relationship with the root of higher plant

A. Lichen
B. Mycorrhizae
C. Coralloid root
D. Bio firtilizer
Answer» C. Coralloid root
152.

Red rot of sugar cane occur due

A. Bacteria
B. Virus
C. Fungi
D. Nematode
Answer» D. Nematode
153.

Type of DNA found in becteria

A. Straight DNA
B. Helical DNA
C. Circular DNA
D. Membrane bound DNA
Answer» D. Membrane bound DNA
154.

Which one of sybiotic algae is found in secretory cell of hydra?

A. Euchlorella
B. Nostac
C. Ulothrix
D. Spirogyra
Answer» B. Nostac
155.

Becteria do not prssess

A. Plasma membrane
B. Cell wall
C. Mitochondria
D. Ribosomes
Answer» D. Ribosomes
156.

Early blight of potato

A. Phytopthora infestans
B. Alternaria solani
C. Albugo candida
D. Sclerospora graminicola
Answer» C. Albugo candida
157.

Microbial fuel cells

A. 1 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Answer» C. 1 and 3 only
158.

On

A. Penicillum notatum
B. penicillum Chrysogenum
C. Penicillum griscofulum
D. Penicillum roqueforti
Answer» C. Penicillum griscofulum
159.

Fungi used in

A. Saccharomyces cerevisial
B. Schizosacchromyces
C. Saccharomyces ellipsaideus
D. Rihzopus stolonifer
Answer» B. Schizosacchromyces
160.

Algae

A. It can be turned to important diet in future for human
B. It purifies atmosphere
C. It can be grown in water tank
D. None of these
Answer» B. It purifies atmosphere
161.

Consider the following organism?

A. 1 and 2
B. 1 and 3
C. 2 and 4
D. 3 and 4
Answer» E.
162.

Microorganism

A. Bacteria & Virus
B. Bacteria, Virus, Microalgae and Fungi
C. Bacteria, Virus Microalgae, Fungi and Protozoa
D. All animals & Plants
Answer» D. All animals & Plants
163.

Bacteria cannot survive in a

A. Bacteria get plasmolysed and are consequently killed
B. Salt inhibits reproduction
C. The pickel does not contain nutrient necessary for bacteria to survive
D. Bacteria do not get enough light for photosynthisis
Answer» B. Salt inhibits reproduction
164.

Refrigeration

A. Bacteria are destroyed
B. Growth of bacteria reduced
C. Bacteria become inactive
D. Cytoplasm of bacteria contract
Answer» D. Cytoplasm of bacteria contract
165.

Bacteria which convert atmospheric nitrogen into nitrogenous compound are called

A. Denitrifying bacteria
B. Nitrogen fixing bacteria
C. Nitrifying bacteria
D. Decomposing bacteria
Answer» C. Nitrifying bacteria
166.

Which one of the following type of microorganism is most widely used in industries?

A. Bacteria
B. Bacteria and fungi
C. Bacteria and algae
D. Bacteria, microalgae and fungi
Answer» E.
167.

Which one of following statement is correct ?

A. Prions are the smallest free living cells
B. The cell wall of mycoplasmas is made up of amino sugar
C. Viroids consist of single stranded RNA molecule
D. Rickettsias lack cell wall
Answer» D. Rickettsias lack cell wall
168.

Expanded form of

A. Acquired immun deficiency syndrome
B. Acquired deficiency syndrome
C. Acquired immunity syndrome
D. Acquired incapablity syndrome
Answer» B. Acquired deficiency syndrome
169.

Viruses

A. Protein & lipids
B. Nucleic acid & protein
C. Lipids & Carbohydrate
D. Carbohydrate & Nucleic acid
Answer» C. Lipids & Carbohydrate
170.

Two bacteria found to be very useful in

A. Nitrosomonas and klebsiella
B. Escherichia and Agrobacterium
C. Nitrobacter and Azoobacter
D. Rhizobium and Diplococcus
Answer» C. Nitrobacter and Azoobacter
171.

Litmus paper

A. Green algae
B. Blue-green algae
C. Lichen
D. Fungi
Answer» D. Fungi
172.

Pond Sillc

A. Spirogyra
B. Chlorella
C. Ulva
D. Nostoc
Answer» B. Chlorella
173.

Fungi which grow on

A. Saxecoles
B. Corticoles
C. Coprophilous
D. Zoophilous
Answer» D. Zoophilous
174.

LSD

A. Bacteria
B. Fungi
C. 2, 4-D
D. Alcohol
Answer» C. 2, 4-D
175.

Penicillum

A. Virus
B. Algae
C. Fungi
D. Bacteria
Answer» D. Bacteria
176.

Which of the following do not have

A. Algae
B. Bryophytes
C. Pteridophytes
D. Fungi
Answer» E.
177.

Red colour

A. Moss
B. Algae
C. Fungi
D. Bacteria
Answer» C. Fungi
178.

Cell wall of fungi

A. Lipids
B. Cellulose
C. Protein
D. Chitin & Hemicellulose
Answer» E.
179.

Bat can fly in dark

A. have strong wings
B. have sharp eyes
C. Produce ultrasonic waves
D. are natural
Answer» D. are natural
180.

Fungi grown

A. Saxocoles
B. Corticoles
C. Tericoles
D. Coprophillus
Answer» C. Tericoles
181.

Sea known as

A. Fungi
B. Angiosperm
C. Algae
D. Bryophyto
Answer» D. Bryophyto
182.

Aflatoxion

A. Poision produced by fungi
B. Antibiotic
C. Poision in snake
D. Poision produced by snake
Answer» B. Antibiotic
183.

Kelps

A. Fresh water algae
B. Marine algae
C. Terrestrial
D. Amphibious
Answer» C. Terrestrial
184.

Sago

A. Cycus
B. Pinus
C. Cedrus
D. Zooniperus
Answer» B. Pinus
185.

The medicine

A. Cycus
B. Ephedra
C. Pinus
D. Zooniperus
Answer» C. Pinus
186.

Which one of the following is a living

A. Ginkgo
B. Pinus
C. Mirabilius
D. Dalbergia
Answer» B. Pinus
187.

Branch of botany

A. Phycology
B. Mycology
C. Microbiology
D. Ambiobiology
Answer» C. Microbiology
188.

Azola

A. Bryophytes
B. Algae
C. Fungi
D. Water ferm
Answer» E.
189.

Which of these algae is very

A. Oscillatoria
B. Chlorella
C. Spirogyra
D. Ulothrix
Answer» C. Spirogyra
190.

Growth of virus

A. Dead body
B. Living cell
C. Water
D. In the solution of sugar
Answer» C. Water
191.

Lichen which grow on the

A. Saxocoles
B. Corticoles
C. Parmelia
D. Ascocoles
Answer» C. Parmelia
192.

Which of the following plant produce

A. Maize
B. Mint
C. Peepal
D. Pinus
Answer» E.
193.

Fungi

A. Acetobacter
B. Penicillum
C. Saccharomyces
D. Aspergilus
Answer» D. Aspergilus
194.

Which of the following animals

A. Fish
B. Pigion
C. Frog
D. Cockroach
Answer» D. Cockroach
195.

Symbiotic

A. Algae & Bryophytes
B. Fungi and root of higher plant
C. Algae & root of Gymnosperm
D. Algae & Fungi
Answer» C. Algae & root of Gymnosperm
196.

Insectivorus

A. Soil is deficient in nitrogen
B. Soil is deficient in carbohydrate
C. Vitamin C is required
D. Hormones are required
Answer» B. Soil is deficient in carbohydrate
197.

The fact support the concept that viruses are living is that they

A. Multiply themselves
B. Made up of common chememical
C. Cause disease
D. Can pais through cell membrane
Answer» B. Made up of common chememical
198.

Statement which is true about bacteria

A. All bacteria are autotrophs
B. All bacteria are heterotrophs
C. Most of them are heterotrophs but some are autotrophs
D. All bacteria are photosynthetic
Answer» D. All bacteria are photosynthetic
199.

Bacteria are grouped under plant because

A. They can not move
B. They have cell wall
C. They multiple by fission
D. They are found everywhere
Answer» C. They multiple by fission
200.

"The walking fern"

A. Its spores are able to walk
B. It is dispersed through the agency of walking animal
C. It propagates vegetatively by its leaf tips
D. It known how to walk by itself
Answer» D. It known how to walk by itself