R4RIN – MCQs, Mock Tests | NCERT Class 11 MCQ Questions for Class 11 Biology sets 1

Identify the incorrect match.

1. Physiology – Study of functions and processes of life
2. Pedology – Soil science
3. Limnology – Study of fresh water
4. Kinesiology – Fossil study

✅ Correct Answer: 4

The Phylogenetic system of classification was put forth by

1. Theophrastus
2. George Bentham and Joseph Dalton Hooker
3. Carolus Linnaeus
4. Adolf Engler and Karl Prantl

✅ Correct Answer: 4

Two taxonomic species are distinguished from each other by

1. their failure to interbreed
2. their ability to exchange gene freely
3. their similarity in morphological characters
4. discontinuity in a set of correlated characters

✅ Correct Answer: 1

Musca domestica is common name of

1. Housefly
2. Mosquito
3. Snail
4. Ant

✅ Correct Answer: 1

Keystone species are

1. important for ecosystem
2. important for plants
3. endangered species
4. extinct species

✅ Correct Answer: 1

The study of fish culture is called

1. ophiology
2. herpetology
3. ichthyology
4. pisciculture

✅ Correct Answer: 4

National Botanical Research Institute is located in

1. Shimla
2. Dehradun
3. Howrah
4. Lucknow

✅ Correct Answer: 4

Biosystematics aims at

1. Identification and arrangement of organisms on the basis of cytological characteristics
2. The classification of organisms based on broad morphological characters
3. Delimiting various taxa of organism and establishing their relationships
4. The classification of organisms based on their evolutionary history and establishing their phylogeny on the totality of various parameters from all fields of studies

✅ Correct Answer: 4

In angiosperm, characters of flowers are used in classification because

1. Flowers are attractive
2. Flowers are large
3. Characters of flowers are conservative
4. None of the above

✅ Correct Answer: 3

Scientific name of plants are given by

1. International code for Botanical nomenclature
2. International code for biological plants
3. Indian code for Botanical nomenclature
4. International code for zoological nomenclature

✅ Correct Answer: 1

A system which gets a continuous flow of energy is called

1. micropropagated system
2. closed system
3. open system
4. steady state

✅ Correct Answer: 3

Solanum, Panthera, Homo are examples of

1. Family
2. Division
3. Genera
4. Species epithet

✅ Correct Answer: 3

Binomial Nomenclature was given by

1. Ernst Mayr
2. Alexander Agassiz
3. Carolus Linnaeus
4. Alexander Agassiz and Carlous Linnaeus

✅ Correct Answer: 3

Systematics deals with

1. Nomenclature of new organisms
2. Evolutionary relationship between organisms
3. Identification of newly discovered organisms
4. All of these

✅ Correct Answer: 4

Which of the following shows maximum diversity?

1. Plantas
2. Animalia
3. Monerans
4. Protistans

✅ Correct Answer: 2

Which of the following does not come under taxon?

1. Species
2. Kingdom
3. Division
4. Key

✅ Correct Answer: 4

The ozone layer is found in the

1. hydrosphere
2. stratosphere
3. lithosphere
4. troposphere

✅ Correct Answer: 2

Taxonomic studies depends on

1. Ecological information of organisms.
2. Structure of cell and development process of organisms.
3. External and internal structure of organisms.
4. All of the above

✅ Correct Answer: 4

Wheat belongs to division ______.

1. Angiospermae
2. Gymnospermae
3. Poacae
4. None of the above

✅ Correct Answer: 1

The two kingdom Classification was given by

1. c.linnaeus
2. john ray
3. huxley
4. whittaker

✅ Correct Answer: 2

Choose the correct pair.

1. Parasitic fungi – feeds on plants and animals
2. Saprotrophic fungi – feeds on dead and decaying organic matter
3. Symbiotic fungi – mycorrhiza
4. All of the above are true

✅ Correct Answer: 4

Which of the following is used in biochemical and genetic work?

1. Claviceps
2. Aspergillus
3. Neurospora
4. Mucor

✅ Correct Answer: 3

If a scientist has to names a similar species he should study the

1. Holotype
2. syntype
3. mesotype
4. isotype

✅ Correct Answer: 4

Which of the following is not a viral disease?

1. AIDS
2. Herpes
3. Tuberculosis
4. Smallpox

✅ Correct Answer: 3

Choose the correct match

1. Photosynthetic autotrophs – Nutrient recycling
2. Chemosynthetic autotrophs – Nitrogen fixation
3. Heterotrophic bacteria – Production of antibiotics
4. Mycoplasma – Production of curd

✅ Correct Answer: 3

The scientist who created the group protista for both unicellular plants and animals is

1. haecke
2. pasteur
3. lister
4. koch

✅ Correct Answer: 1

Binomial nomenclature was given by

1. huxley
2. ray
3. darwin
4. linnaeus

✅ Correct Answer: 4

Which of the following is an indicator of air pollution?

1. Mycorrhiza
2. Agaricus
3. Lichens
4. Common mushrooms

✅ Correct Answer: 3

The natural system of Classification is based on

1. morphology
2. evolutionary trend
3. anatomy
4. All of the above

✅ Correct Answer: 4

Potato spindle tuber disease is caused by

1. Phycobionts
2. Virus
3. Bacteria
4. Viroids

✅ Correct Answer: 4

Quinine is obtained from

1. Puccinia
2. Neurospora
3. Gonyaulax
4. Cinchona

✅ Correct Answer: 1

According to five-kingdom classification, which of the following does not contain nuclear membrane?

1. Protista
2. Monera
3. Fungi
4. Animalia

✅ Correct Answer: 2

Two organisms of the same class but different families will be kept under the same

1. genera
2. species
3. order
4. family

✅ Correct Answer: 3

Bacteria that live in hot springs are called

1. Halophiles
2. Thermoacidophiles
3. Methanogens
4. None of the above

✅ Correct Answer: 2

Which amongst kingdom animalia has become recently extinct?

1. snow leopard
2. indian macaque
3. cheetah
4. tiger

✅ Correct Answer: 3

Red tides in sea appear due to

1. Euglena
2. Chrysophytes
3. Dinoflagellates
4. Diatoms

✅ Correct Answer: 3

The asexual spores are not found, vegetative reproduction occurs by fragmentation and sexual organs are absent. Identify the class of fungi.

1. Phycomycetes
2. Ascomycetes
3. Basidiomycetes
4. Deuteromycetes

✅ Correct Answer: 3

Match the columns: 1. Basidiomycetes – A. Agaricus 2. Ascomycetes – B. Albugo 3. Phycomycetes – C. Trichoderma 4. Deuteromycetes – D. Saccharomyces

1. 1-D, 2-A, 3-B, 4-C
2. 1-A, 2-D, 3-B, 4-C
3. 1-A, 2-B, 3-D, 4-C
4. 1-C, 2-D, 3-A, 4-B

✅ Correct Answer: 2

Trypanosoma causes

1. Dysentry
2. Mumps
3. Sleeping sickness
4. Cholera

✅ Correct Answer: 3

Rhodophyceae is called red algae because of the pigment

1. Fucoxanthin
2. Phycoerythrin
3. Carotenoids
4. Chlorophyll c

✅ Correct Answer: 2

Which of the followings plant material is an efficient water imbibant?

1. Agar (b) (c) (d)
2. Cellulose
3. Lignin
4. Pectin

✅ Correct Answer: 1

The seedless vascular plants whose sporophytes are larger than their small and independent gametophytes are

1. Pteridophytes
2. Angiosperms
3. Gymnosperms
4. None of these

✅ Correct Answer: 1

Which of the following is a liverwort?

1. Sphagnum
2. Funaria
3. Marchantia
4. Polytrichum

✅ Correct Answer: 3

Transgenic plants are the ones

1. Grown in artificial medium after hybridization in the field
2. Generated by introducing foreign DNA in to a cell and regenerating a plant from that cell
3. Produced by a somatic embryo in artificial medium
4. Produced after protoplast fusion in artificial medium

✅ Correct Answer: 2

Which of the following plants is used extensively for the study of photosynthesis?

1. Amaranthus
2. Asparagus
3. Chlorella
4. Sunflower

✅ Correct Answer: 3

Which of the following is used to grow microbes?

1. Laminaria
2. Gelidium
3. Chlorella
4. Sargassum

✅ Correct Answer: 2

Isogamous condition with non-flagellated gametes is found in

1. Chlamydomonas
2. Spirogyra
3. Volvox
4. Fucus

✅ Correct Answer: 2

Gymnosperms produce neither flower nor fruit because they do not possess

1. Embryo
2. Ovary
3. Ovule
4. Seed

✅ Correct Answer: 2

In moss stomata appears on

1. Capsule
2. Leaves
3. Stem
4. All of these

✅ Correct Answer: 1

In moss stomata appears on

1. Capsule
2. Leaves
3. Stem
4. All of these

✅ Correct Answer: 1

The gametophyte is not an independent, free-living generation in

1. Pinus
2. Polytrichum
3. Adiantum
4. Marchantia

✅ Correct Answer: 1

In gymnosperms, the development of pollen grains occurs in

1. Strobili
2. Microsporangia
3. Megasporangia
4. Macrosporangia

✅ Correct Answer: 2

Ribbon shaped chloroplasts occur in

1. Ulothrix
2. Spirogyra
3. Chlamydomonas
4. Riccia

✅ Correct Answer: 2

Antheridia and Archegonia are sex organs of

1. Moss
2. Mucor
3. Spirogyra
4. Puccinia

✅ Correct Answer: 1

Iodine is found in

1. Spirogyra
2. Laminaria
3. Polysiphonia
4. Chlorella

✅ Correct Answer: 2

Bryophytes are called amphibians of plant kingdom because

1. These plants live in soil and depend on marine organisms for asexual reproduction.
2. These plants live in soil and depend on water for sexual reproduction.
3. These plants live in water and depend on land animals for sexual reproduction.
4. These plants live near water bodies.

✅ Correct Answer: 2

Which one of the following is a vascular cryptogram?

1. Cedrus
2. Equisetum
3. Ginkgo
4. Marchantia

✅ Correct Answer: 2

Pinus differs from mango in having

1. Tree habit
2. Green leaves
3. Ovules not enclosed in ovary
4. Wood

✅ Correct Answer: 3

In tamarind, the pinnate leaf is

1. bipinnate
2. tripinnate
3. paripinnate
4. imparipinnate

✅ Correct Answer: 1

Artabotrys is a hook climber in which the hooks are modified

1. inflorescence axis
2. petiole
3. roots
4. stipules

✅ Correct Answer: 1

Exceptional roots of Cuscuta are

1. haustorial
2. coralloid
3. mucorhizal
4. All of the above

✅ Correct Answer: 1

The petiole is swollen and spongy in

1. Nepenthes
2. Trapa
3. Clematis
4. All of the above

✅ Correct Answer: 2

Which one of the following plants dose not have root – pockets

1. Pistia
2. Lemna
3. Ficus
4. Eichhornia

✅ Correct Answer: 3

The largest petal overlaps the lateral ones in _________ aestivation.

1. Papilionaceous
2. Valvate
3. Twisted
4. Imbricate

✅ Correct Answer: 1

In Lathyrus, the leaves are modified into

1. thorns
2. cladodes
3. tendrils
4. spines

✅ Correct Answer: 3

Label the parts of a monocot seed.

1. A.Endosperm, B. Scutellum, C. Radicle, D. Coleoptile, E. Plumule
2. A.Endosperm, B. Coleoptile, C. Scutellum, D. Radicle, E. Plumule
3. A.Endosperm, B. Scutellum, C. Coleoptile, D. Radicle, E. Plumule
4. A.Endosperm, B. Scutellum, C. Coleoptile, D. Plumule, E. Radicle

✅ Correct Answer: 4

Potato tuber is an underground stem because

1. it lacks chlorophyll
2. it is swollen
3. it possesses axillary buds
4. it stores starch as reserve food material

✅ Correct Answer: 3

Floating roots are characteristic of

1. Tinospora
2. Jussiaea
3. Viscum
4. Vanda

✅ Correct Answer: 2

Thors and spines are

1. homologous organs
2. analogous organs
3. thron is homologous while spine is analogous
4. spine is homologous while is analogous

✅ Correct Answer: 4

In which of the following plants stems do not store the food material

1. potato
2. ginger
3. onion
4. colocasia

✅ Correct Answer: 3

In banana, the stem is

1. underground only
2. both underground and aerial
3. absent
4. aerial only

✅ Correct Answer: 1

Srem modified to perform the function of a leaf and having many internodes is called as

1. phylloclade
2. cladode
3. offset
4. phyllode

✅ Correct Answer: 1

Certain plants called as runners can be easily propagated. This is due to the fact

1. they are numerous in numbers
2. they store the ready food
3. they lie horizontally on the soil
4. they can produce adventitious roots quite readily at the nodes

✅ Correct Answer: 4

The coloured part of a Bougainuillea flower is the

1. corolla
2. calyx
3. bracts
4. androecium

✅ Correct Answer: 3

The axillary buds arise

1. endogenously from the pericycle
2. exogenously from the tissues of the shoot apex
3. endogenously from the cambium tissues
4. exogenously from the innermost layers of cortex

✅ Correct Answer: 2

The arrangement of sepals or petals in floral bud is called

1. Placentation
2. Aestivation
3. Bracteate
4. Phyllotaxy

✅ Correct Answer: 2

The term phyllotaxy is used to describe the

1. type of ovary in a plant
2. mode of arrangement of leaves
3. type of roots
4. arrangement of sepals and petals

✅ Correct Answer: 2

Quiescent centre is present in the

1. apical meristem
2. shoot meristem
3. lateral meristem
4. root meristem

✅ Correct Answer: 3

Closed vascular bundles lacks

1. pith
2. xylem
3. cambium
4. xylem vessels

✅ Correct Answer: 3

Which of the following is not a feature of spring wood?

1. Color of the wood is light.
2. Density is less
3. Cambium is active
4. Lesser number of xylary elements

✅ Correct Answer: 4