Biology MCQs

Option A: Hair end organs

Option B: Meissner’s Corpuscles

Option C: Pacinian corpuscles

Option D: None of these

Correct Answer: B. Meissner’s Corpuscles ✔

Option A: Touch.

Option B: Temperature.

Option C: Pressure.

Option D: Pain

Correct Answer: Pain ✔

Option A: Chemoreceptors

Option B: Mechanoreceptors

Option C: Photoreceptors

Option D: Thermoreceptors

Correct Answer: Mechanoreceptors ✔

Option A: Gibberellins

Option B: Cytokinins

Option C: Auxins

Option D: Abscisic Acid

Correct Answer: Gibberellins ✔

Option A: Gibberellins

Option B: Cytokinins

Option C: Auxins

Option D: Abscisic Acid

Correct Answer: Abscisic Acid ✔

Option A: Gibberellins

Option B: Cytokinins

Option C: Auxins

Option D: Ethene.

Correct Answer: Gibberellins ✔

Option A: Gibberellins

Option B: Cytokinins

Option C: Abscisic Acid

Option D: none of these.

Correct Answer: Abscisic Acid ✔

Option A: White

Option B: Red

Option C: Blue

Option D: Green

Correct Answer: Red ✔

Option A: Indole propionic acid.

Option B: Indole carboxylic acid.

Option C: Indole acetaldehyde

Option D: Indole acetic acid.

Correct Answer: Indole acetic acid. ✔

Option A: Accumulation of toxic waste products in leaves.

Option B: Deficiency of chlorophyll.

Option C: Short supplies of mineral nutrients in the soil.

Option D: All of these

Correct Answer: All of these ✔

Option A: Psilopsida

Option B: Lycopsida

Option C: Sphenopsida

Option D: Prteropsida

Correct Answer: Psilopsida ✔

Option A: Psilopsida

Option B: Lycopsida

Option C: Sphenopsida

Option D: Prteropsida

Correct Answer: Lycopsida ✔

Option A: Psilopsida

Option B: Lycopsida

Option C: Sphenopsida

Option D: Prteropsida

Correct Answer: Sphenopsida ✔

Option A: Isotomous

Option B: Dichotomously

Option C: Trichotomously

Option D: Multichotomously

Correct Answer: Dichotomously ✔

Option A: Monocot

Option B: Dicot

Option C: Gymnosperms

Option D: none of these

Correct Answer: Monocot ✔

Option A: They have 4 or 5 sepals and petals or their multiple.

Option B: They have parallel vein pattern on their leaves

Option C: They are both herbaceous and woody

Option D: Vascular bundles are ring shaped in their stems.

Correct Answer: They have parallel vein pattern on their leaves ✔

Option A: Oospore

Option B: Spore mother cell

Option C: Spore

Option D: Gamete

Correct Answer: Oospore ✔

Option A: Number of sepals and petals are 2 or multiple of 2

Option B: Number of sepals and petals are 3 or multiple of 3

Option C: Number of sepals and petals are 4 or multiple of 4

Option D: Number of sepals and petals are 5 or multiple of 5

Correct Answer: Number of sepals and petals are 3 or multiple of 3 ✔

Option A: Capsule

Option B: Foot

Option C: Stalk

Option D: None of these

Correct Answer: Capsule ✔

Option A: Pollen grain

Option B: Ovule

Option C: Microgametophyte

Option D: Microsporangium

Correct Answer: Pollen grain ✔

Option A: Foot

Option B: Gamete producing region

Option C: Spore producing region

Option D: At junction of A & B

Correct Answer: At junction of A & B ✔

Option A: Mitosis

Option B: Meiosis

Option C: Both depending upon the conditions

Option D: None of these

Correct Answer: Meiosis ✔

Option A: Anthoceropsida

Option B: Bryopsida

Option C: Hepaticopsida

Option D: None of these

Correct Answer: Anthoceropsida ✔

Option A: Spheospsida

Option B: Filicineae

Option C: Gymnosperms

Option D: Angiosperms

Correct Answer: Gymnosperms ✔

Option A: Spheospsida

Option B: Filicineae

Option C: Gymnosperms

Option D: Angiosperms

Correct Answer: Gymnosperms ✔

Option A: Thallus like

Option B: Algae like

Option C: Fungus like

Option D: Plant like

Correct Answer: Algae like ✔

Option A: Sporangium

Option B: Integuments

Option C: Ovule

Option D: Pericarp

Correct Answer: Integuments ✔

Option A: Its short thick branched horizontally growing rhizome

Option B: Fibrous adventituous roots arise from the lower side of rhizome

Option C: Shows heteromorphic alternation of generation

Option D: Stipe (stalk) and rachis of leaf have black smooth and shiny hair like structures

Correct Answer: Stipe (stalk) and rachis of leaf have black smooth and shiny hair like structures ✔

Option A: Marchantia

Option B: Funaria

Option C: Both of these

Option D: None of these

Correct Answer: Both of these ✔

Option A: They belong to sphenopsida

Option B: They are seedless and their leaves are called fronds

Option C: They live in shady and moist areas.

Option D: They show circinate vernation.

Correct Answer: They belong to sphenopsida ✔

Option A: Thallophytes

Option B: Embryophytes

Option C: Mosses

Option D: Liverworts

Correct Answer: Liverworts ✔

Option A: Overtopping

Option B: Fusion

Option C: Webbing

Option D: Planation

Correct Answer: Planation ✔

Option A: Anthoceropsida

Option B: Hepaticopsida

Option C: Bryopsida

Option D: Lycopsida

Correct Answer: Bryopsida ✔

Option A: Lycopods

Option B: Ferns

Option C: Seed plants

Option D: Both b and c

Correct Answer: Both b and c ✔

Option A: Psilopsida

Option B: Lycopsida

Option C: Sphenopsida

Option D: Pteropsida

Correct Answer: Lycopsida ✔

Option A: Monoploid

Option B: Haploid

Option C: Diploid

Option D: Polyploidy

Correct Answer: Diploid ✔

Option A: Lycopods

Option B: Spike mosses

Option C: Both of these

Option D: None of these

Correct Answer: Both of these ✔

Option A: Unicellular

Option B: Mulicellular

Option C: Multinucleate

Option D: None of these

Correct Answer: Unicellular ✔

Option A: Heterospory

Option B: Homospory

Option C: Heterogamy

Option D: Gamospory

Correct Answer: Heterospory ✔

Option A: Sclerenchyma

Option B: Chlorenchyma

Option C: Parenchyma

Option D: Collenchyma

Correct Answer: Chlorenchyma ✔

Option A: It involves alternation of morphologically different generations

Option B: Their gametophyte is independent while sporophyte depends upon gametophyte for nutrition.

Option C: Both the gametophyte and sporophytes are haploid generations thus can produce haploids gametes to continue the diploid number on fertilization

Option D: Spore formation occurs through meiosis

Correct Answer: Both the gametophyte and sporophytes are haploid generations thus can produce haploids gametes to continue the diploid number on fertilization ✔

Option A: U

Option B: R

Option C: Y

Option D: Fork

Correct Answer: Y ✔

Option A: Antheridia

Option B: Archegonia

Option C: water

Option D: Ovule

Correct Answer: Archegonia ✔

Option A: Ferns

Option B: Seed plants

Option C: Both of these

Option D: None of these

Correct Answer: Seed plants ✔

Option A: Sphenopeida

Option B: Lycopsida

Option C: Psilopsida

Option D: Pteropsida

Correct Answer: Sphenopeida ✔

Option A: Gametophyte is colourless

Option B: They have mycorrhizal association

Option C: Rhizoids bear Rhizome

Option D: Aerial branches have veinless outgrowths

Correct Answer: Rhizoids bear Rhizome ✔

Option A: Anthoceropsida

Option B: Bryopsida

Option C: Hepaticopsida

Option D: Psilopsida

Correct Answer: Anthoceropsida ✔

Option A: Fungi

Option B: Gymnosperms

Option C: Angiosperms

Option D: Tracheophytes

Correct Answer: Tracheophytes ✔

Option A: Bryophytes like amphibian ancestors are one of the most primitive organisms in this world.

Option B: Bryophytes like amphibian live in damp shady places and close to water body.

Option C: Amphibians have close relation with bryophytes in their habitat.

Option D: All of these

Correct Answer: Bryophytes like amphibian live in damp shady places and close to water body. ✔

Option A: Psilopsida

Option B: Lycopsida

Option C: Sphenopsida

Option D: Prteropsida

Correct Answer: Sphenopsida ✔

Option A: Psilopsids

Option B: Lycopsids

Option C: Sphenopsids

Option D: Prteropsids

Correct Answer: Sphenopsids ✔

Option A: Homosporous

Option B: Hetrosporous

Option C: Both depending upon the conditions

Option D: None of these

Correct Answer: Hetrosporous ✔

Option A: Rhynia

Option B: Psilophyton

Option C: Psilotum

Option D: Cooksonia

Correct Answer: Psilotum ✔

Option A: Algae

Option B: Bacteria

Option C: Protozoa

Option D: Fungus

Correct Answer: Fungus ✔

Option A: 4

Option B: 3

Option C: 2

Option D: 1

Correct Answer: 2 ✔

Option A: cells

Option B: tissues

Option C: organs

Option D: organisms

Correct Answer: cells ✔

Option A: spores

Option B: gametes

Option C: both a & b

Option D: all the above

Correct Answer: gametes ✔

Option A: meiosis

Option B: mitosis

Option C: both a & b

Option D: none of these

Correct Answer: mitosis ✔

Option A: meiosis

Option B: mitosis

Option C: cell division

Option D: none of these

Correct Answer: meiosis ✔

Option A: 40

Option B: 50

Option C: 55

Option D: 60

Correct Answer: 50 ✔

Option A: 400

Option B: 375

Option C: 350

Option D: 325

Correct Answer: 350 ✔

Option A: prokaryotic

Option B: eukaryotic

Option C: both

Option D: all the above

Correct Answer: eukaryotic ✔

Option A: Psilopsida

Option B: Lycopsida

Option C: Sphenopsida

Option D: Pteropsida

Correct Answer: Pteropsida ✔

Option A: Porella

Option B: Funaria

Option C: Anthocerus

Option D: Polytrichum

Correct Answer: Porella ✔

Option A: Sporophyte

Option B: Gametophyte

Option C: Both of these

Option D: None of these

Correct Answer: Gametophyte ✔

Option A: All are eukaryotes

Option B: They are multicellular.

Option C: Non-motile organisms

Option D: They Are heterotrophes

Correct Answer: They Are heterotrophes ✔

Option A: Coelenterates

Option B: Platyhelminthes

Option C: Aschelminthes

Option D: Annelids

Correct Answer: Aschelminthes ✔

Option A: Dugesia

Option B: Fasciola

Option C: Taenia

Option D: None of these

Correct Answer: Dugesia ✔

Option A: 0.2 mm

Option B: 0.2 nm

Option C: 0.2 m

Option D: none of these

Correct Answer: 0.2 nm ✔

Option A: 48

Option B: 44

Option C: 46

Option D: 26

Correct Answer: 46 ✔

Option A: Muscles

Option B: Hydrostatic skeleton

Option C: Parapodia

Option D: Setae

Correct Answer: C. Parapodia
D. Setae ✔

Option A: Excretory system

Option B: Digestive system

Option C: Criculatory system

Option D: Nervous system

Correct Answer: Criculatory system ✔

Option A: Sac – like digestive system

Option B: Tube – like digestive system

Option C: Circulatory system

Option D: Respiratory system

Correct Answer: B. Tube – like digestive system ✔

Option A: Rhabditis

Option B: Enterobius vermicularis

Option C: Ancylostoma duodenale

Option D: Taenia solium

Correct Answer: Enterobius vermicularis ✔

Option A: Crustacea

Option B: Insecta

Option C: Arachnida

Option D: Myriapoda

Correct Answer: Arachnida ✔

Option A: Echinoderms

Option B: Hemichordates

Option C: Vertebrates

Option D: Chordates

Correct Answer: Hemichordates ✔

Option A: Head

Option B: Ventral muscular foot

Option C: Dorsal visceral region

Option D: All of these

Correct Answer: Dorsal visceral region ✔

Option A: Nematods

Option B: Arthropods

Option C: Molluscs

Option D: None of these

Correct Answer: Arthropods ✔

Option A: Tentacles

Option B: Palps

Option C: Eyes

Option D: All of these

Correct Answer: All of these ✔

Option A: Ventral nerve cord

Option B: Dorsal nerve cord

Option C: Lateral nerve cord

Option D: All of these

Correct Answer: All of these ✔

Option A: Flatwarms

Option B: Triploblastic

Option C: Coelomate

Option D: Bilateral symmetry

Correct Answer: Coelomate ✔

Option A: Calcium

Option B: Silica

Option C: Chitin

Option D: Both A & B

Correct Answer: Calcium ✔

Option A: Blastopore

Option B: Plastoquinone

Option C: Blastocoel

Option D: Splitting of mesoderm

Correct Answer: Blastocoel ✔

Option A: Nephridia

Option B: Flame cells

Option C: Malpighian tubules

Option D: Nephrons

Correct Answer: Flame cells ✔

Option A: Hydra

Option B: Obelia

Option C: Aurelia

Option D: None of these

Correct Answer: Hydra ✔

Option A: Digestive cavity

Option B: Body cavity

Option C: Transporting cavity

Option D: all of these

Correct Answer: all of these ✔

Option A: Few millimeter wide to more than one meter tall

Option B: Few centimeter wide to more than one meter tall

Option C: Few decimeter wide to more than one meter tall

Option D: One meter wide to more than millimeter tall.

Correct Answer: Few millimeter wide to more than one meter tall ✔

Option A: Parietal mesoderm

Option B: Visceral mesoderm

Option C: Mesoderm

Option D: Both A & B

Correct Answer: Both A & B ✔

Option A: All animals are ingestive heterotrophs

Option B: All animals are eukaryotes

Option C: All animals develop from the dissimilar gametes i.e. large sperm and small egg.

Option D: It is largest kingdom.

Correct Answer: All animals develop from the dissimilar gametes i.e. large sperm and small egg. ✔

Option A: Nematods

Option B: Annelids

Option C: Arthropods

Option D: Molluscs

Correct Answer: Annelids ✔

Option A: Lies on dorsal side

Option B: Lies on ventral side

Option C: Lies on lateral side

Option D: Is not present

Correct Answer: Lies on dorsal side ✔

Option A: Porifera

Option B: Arthropoda

Option C: Mollusca

Option D: Chordata

Correct Answer: Mollusca ✔

Option A: Cake urchin

Option B: Sea Urchin

Option C: Sea cucumber

Option D: Brittle star

Correct Answer: Sea Urchin ✔

Option A: Cyclostomata

Option B: Chondrichthyes

Option C: Osteichthyes

Option D: None of these

Correct Answer: Cyclostomata ✔

Option A: Urochordates

Option B: Cephalochordates

Option C: Chordates

Option D: Vertebrates

Correct Answer: Cephalochordates ✔

Option A: Lamprey

Option B: Perch

Option C: Plaice

Option D: Dipnoi

Correct Answer: Dipnoi ✔

Option A: Proterozoic era

Option B: Mesozoic era

Option C: Paleozoic era

Option D: Cenozoic era

Correct Answer: Cenozoic era ✔

Option A: Polyps

Option B: Medusae

Option C: Both of these

Option D: None of these

Correct Answer: Medusae ✔

Option A: Ectoderm

Option B: Mesenchyme

Option C: Endoderm

Option D: Uterus

Correct Answer: Mesenchyme ✔

Option A: Detrital organic particles

Option B: Zooplankton and small animals

Option C: Phytoplanktons

Option D: all of these

Correct Answer: Detrital organic particles ✔