NEET Biology Morphology of Plants MCQs Set D

Question: Primary root is the direct elongation of the

• a) Radicle
• b) Plumule
• c) Stamen
• d) Pedicel

Answer: Radicle

Question: The type of roots present in mustard plant is

• a) Tap roots
• b) Nodulated roots
• c) Adventitious roots
• d) Fibrous roots

Answer: Tap roots

Question: Which of the following is not the lateral branches of the roots?

• a) Primary root
• b) Tertiary roots
• c) Secondary roots
• d) More than one option is correct

Answer: Primary root

Question: In wheat plant ________ root system is present

• a) Fibrous
• b) Prop
• c) Tap
• d) Nodulated

Answer: Fibrous

Question: Which of the following is not the main function of the root system?

• a) Photosynthesis
• b) Synthesis of PGRs
• c) Provide anchorage to the plant parts
• d) Absorption of water and minerals from soil

Answer:  Photosynthesis

Question: A root grows in length, which region of the root is responsible for this growth?

• a) Region of elongation
• b) Root cap
• c) Region of meristematic activity
• d) Region of maturation

Answer: Region of elongation

Question: Root hairs are present in/on

• a) Region of maturation
• b) Root cap
• c) Region of elongation
• d) Region of meristematic activity

Answer: Region of maturation

Question: The region or part of root that increases the surface area for water absorption is

• a) Root hair
• b) Meristematic zone
• c) Zone of elongation
• d) Root cap

Answer: Root hair

Question: The tap roots of ______ gets modified to store food

• a) Carrot
• b) Onion
• c) Ginger
• d) Sweet potato

Answer: Carrot

Question: Adventitious roots of ______ get swollen and store food

• a) Sweet potato
• b) Radish
• c) Turnip
• d) Carrot

Answer: Sweet potato

Question: Supporting roots coming out of the lower nodes of the sugarcane stem are called

• a) Stilt roots
• b) Pneumatophores
• c) Fusiform roots
• d) Prop roots

Answer:  Stilt roots

Question: In Rhizophora, roots are modified to form

• a) Pneumatophores
• b) Stilt roots
• c) Storage roots
• d) Tuberous roots

Answer: Pneumatophores

Question: The hanging structures that support banyan tree are called

• a) Prop roots
• b) Stilt roots
• c) Pneumatophores
• d) Root hair

Answer: Prop roots

Question: Stem develops from ______ of the embryo of a germinating seed

• a) Plumule
• b) Pedicel
• c) Pneumatophore
• d) Radicle

Answer: Plumule

Question: ______ are the regions of the stem that bear leaves

• a) Nodes
• b) Foliar bud
• c) Radical bud
• d) Internode

Answer:  Nodes

Question: Stems of potato, ginger and turmeric are modified to

• a) Store food
• b) Respiration
• c) Perform photosynthesis
• d) Provide support

Answer: Store food

Question: In gourds, axillary buds develop spirally coiled structures called

• a) Tendril
• b) Offsets
• c) Suckers
• d) Thorns

Answer: Tendril

Question: ______ protect Bougainvillea from grazing animals

• a) Thorns
• b) Offsets
• c) Suckers
• d) Tendrils

Answer: Thorns

Question: Stems are modified into flattened structures, which carryout photosynthesis in

• a) Opuntia
• b) Bougainvillea
• c) Colocasia
• d) Euphorbia

Answer: Opuntia

Question: Chlorophyll containing fleshy cylindrical structures found in Euphorbia are modified

• a) Stem
• b) Leaves
• c) Fruit
• d) Roots

Answer: Stem

Question: In Pistia and Eichhornia, stems are modified to form

• a) Offsets
• b) Tendrils
• c) Stolons
• d) Suckers

Answer: Offsets

Question: Leaves originate from ______ and are arranged in an ______ order.

• a) Shoot apical meristem, acropetal
• b) Root apical meristem, acropetal
• c) Floral meristem, basipetal
• d) Internodes, basipetal

Answer: Shoot apical meristem, acropetal

Question: Which of the following is not a part of a leaf?

• a) Pedicel
• b) Petiole
• c) Lamina
• d) Leaf base

Answer:  Pedicel

Question: Leaf base may bear two lateral small leaf like structures called

• a) Stipules
• b) Sepals
• c) Pulvinus
• d) Lamina

Answer: Stipules

Question: Swollen leaf base found in leguminous plants is called

• a) Pulvinus
• b) Stipules
• c) Petiole
• d) Leaf blade

Answer: Pulvinus

Question: Which one of the following plants shows alternate phyllotaxy?

• a) Sunflower
• b) Guava
• c) Nerium
• d) Calotropis

Answer: Sunflower

Question: The petiole expand and become green to synthesize food in

• a) Australian Acacia
• b) Venus-fly trap
• c) Pisum sativum
• d) Solanum

Answer: Australian Acacia

Question: Mark the incorrect statement

• a) Flowers are borne on successive internodes on the stems and roots
• b) When a shoot tip transforms into a flower, the flower is always solitary
• c) In cymose inflorescence, the main axis terminates in a flower
• d) Flower is a modified shoot

Answer: Flowers are borne on successive internodes on the stems and roots

Question: The four whorls of a flower are arranged on the

• a) Thalamus
• b) PetioleCorolla
• c) Corolla
• d) Stamens

Answer: Thalamus

Question: Radial symmetry is found in flowers of

• a) Chilli
• b) Cassia
• c) Gulmohur
• d) Canna

Answer: Chilli

Question: The flower of which of the following plant is zygomorphic?

• a) Bean
• b) Datura
• c) Mustard
• d) Canna

Answer: Bean

Question: Which of the following plant has a superior ovary?

• a) China rose
• b) Guava
• c) Rose
• d) Peach

Answer: China rose

Question: Which of the following plant has epigynous flower?

• a) Cucumber
• b) Brinjal
• c) Mustard
• d) Peach

Answer: Cucumber

Question: The ray florets of sunflower has

• a) Inferior ovary
• b) Half superior ovary
• c) Half inferior ovary
• d) Superior ovary

Answer: Inferior ovary

Question: Mark the incorrect match

• a) Cassia – Valvate
• b) Calotropis – Valvate
• c) Lady’s finger – Twisted
• d) Gulmohur – Imbricate

Answer:  Cassia – Valvate

Question:

• a) a(i), b(iii), c(iv), d(ii)
• b) a(iv), b(ii), c(iii), d(i)
• c) a(iii), b(ii), c(iv), d(i)
• d) a(ii), b(i), c(iv), d(iii)

Answer: a(i), b(iii), c(iv), d(ii)

Question: Carpels are fused in the flowers of

• a) Tomato
• b) Lotus
• c) Rose
• d) None of these

Answer: Tomato

Question: Ovary containing the false septum occurs in

• a) Argemone
• b) Pisum sativum
• c) Dianthus
• d) Primrose

Answer:  Argemone

Question: In ______ placentation, the placenta forms a ridge along the ventral suture of the ovary

• a) Marginal
• b) Free central
• c) Basal
• d) Axile

Answer: Marginal

Question: The stony hard part of the mango represents

• a) Endocarp
• b) Endosperm
• c) Epicarp
• d) Mesocarp

Answer:  Endocarp

Question: Select the correct statement w.r.t. Mango and coconut

• a) They develop from monocarpellary superior ovaries
• b) They have fibrous epicarp
• c) They develop from monocarpellary inferior ovaries
• d) They have fleshy edible mesocarp

Answer: They develop from monocarpellary superior ovaries

Question: The inner layer of the seed coat is called

• a) Tegmen
• b) Micropyle
• c) Hilum
• d) Testa

Answer: Tegmen

Question: Which of the following parts of the embryo contains radicle and plumule?

• a) Embryonal axis
• b) Endosperm
• c) Seed coat
• d) Cotyledon

Answer:  Embryonal axis

Question: Which of the following plant has endospermic seed?

• a) Castor
• b) Pea
• c) Gram
• d) Bean

Answer: Castor

Question: While representing a floral formula, G stands for

• a) Superior ovary
• b) Inferior ovary
• c) Androecium
• d) Epigynous flower

Answer:  Superior ovary

Question:

• a) a(iv), b(iii), c(i), d(ii)
• b) a(i), b(ii), c(iii), d(iv)
• c) a(iv), b(i), c(iii), d(ii)
• d) a(iv), b(ii), c(iii), d(i)

Answer: a(iv), b(iii), c(i), d(ii)

Question: Actinomorphic nature of flower is represented by which of the following symbols?

• a)

  

• b)

  

• c) %
• d) A

Answer:

Question: The floral formula of the plants belonging to the family Fabaceae is

• a)

  

• b)

  

• c)

  

• d)

  

Answer:

Question:  The plants belonging to the family Solanaceae is represented by the floral formula

• a)

  

• b)

  

• c)

  

• d)

  

Answer:

Question: Which of the following plants is used to extract the blue dye?

• a) Indigofera
• b) Cassia
• c) Lupin
• d) Trifolium

Answer: Indigofera

Question: The origin of root hairs and lateral roots is

• a) Exogenous and endogenous respectively
• b) Both endogenously
• c) Endogenous and exogenous respectively
• d) Both exogenously

Answer: Exogenous and endogenous respectively

Question: Find odd one w.r.t radicle leaves

• a) Maize
• b) Radish
• c) Carrot
• d) Turnip

Answer:  Maize

Question: Cuscuta, Viscum and Orobanche are similar in having

• a) Haustorial roots
• b) Epiphyllous roots
• c) Assimilatory roots
• d) Hygroscopic roots

Answer:  Haustorial roots

Question:

• a) a(iii), b(iv), c(i), d(ii)
• b) a(iii), b(i), c(iv), d(ii)
• c) a(ii), b(iv), c(i), d(iii)
• d) a(i), b(iii), c(iv), d(ii)

Answer: a(iii), b(iv), c(i), d(ii)

Question: Stem modified into green, flattened branches of unlimited growth for assimilatory function is

• a) Phylloclade
• b) Cladode
• c) Bulbil
• d) Phyllode

Answer: Phylloclade

Question: Leafless stem of onion which produces cluster of terminal flowers is called as

• a) Scape
• b) Rachis
• c) Floral axis
• d) Peduncle

Answer: Scape

Question: Which is not a modification of stem?

• a) Pitcher of Nepenthes
• b) Tuber of potato
• c) Corm of Colocasia
• d) Rhizome of ginger

Answer:  Pitcher of Nepenthes

Question: Reticulate venation is the feature of dicots but some monocots also exhibit this venation, lik

• a) Smilax
• b) Eryngium
• c) Corymbium
• d) Calophyllum

Answer: Smilax

Question: Thorns, spines and prickles work as _____ in plants

• a) Defensive organs
• b) Organs of offense
• c) Excretory organs
• d) Respiratory organs

Answer: Defensive organs

Question: Leaflet tendril and entire leaf tendril are found in respectively

• a) Pisum, Lathyrus sativus
• b) Luffa, Pisum
• c) Cucurbita, Smilax
• d) Passiflora, Vitis

Answer: Pisum, Lathyrus sativus

Question: Select an incorrect match

• a) Decussate phyllotaxy – Quisqualis, Psidium, Syzygium
• b) Whorled phyllotaxy – Alstonia, Nerium
• c) Alternate phyllotaxy – Mustard, China rose, Sunflower
• d) Opposite phyllotaxy – Zinnia, Calotropis

Answer: Decussate phyllotaxy – Quisqualis, Psidium, Syzygium

Question: Which of the following is not the modification of leaf?

• a) Tendril in Antigonon
• b) Tendril in Clematis
• c) Tendril in Gloriosa
• d) Tendril in Nepenthes

Answer:  Tendril in Antigonon

Question:

• a) Pineapple Sucker Propagation
• b) Nepenthes Leaf tip Photosynthesis
• c) Jasmine Offset Photosynthesis
• d) Vanda Tap root Moisture absorption

Answer: Pineapple Sucker Propagation

Question: Inflorescence with thick, fleshy axis and large coloured bracts is

• a) Spadix
• b) Spikelet
• c) Hypanthodium
• d) Spathe

Answer: Spadix

Question: Bisexual, sessile and bracteate flowers develop acropetally in

• a) Spike
• b) Corymb
• c) Panicle
• d) None of these

Answer: Spike

Question:

• a) Verticillaster
• b) Polychasial cymose
• c) Simple dichasial cymose
• d) Simple monochasial cymose

Answer: Verticillaster

Question: Find the odd one (w.r.t. inflorescence axis elongation)

• a) Umbel
• b) Spike
• c) Raceme
• d) Catkin

Answer: Umbel

Question: The type of inflorescence characterized by having dimorphic flower is

• a) Capitulum
• b) Corymb
• c) Umbel
• d) Catkin

Answer: Capitulum

Question: In Head or Capitulum inflorescence

• a) Ray florets : pistillate or neuter; zygomorphic
• b) Ray florets : pistillate and neuter; actinomorphic
• c) Disc florets : bisexual; zygomorphic
• d) Disc florets : pistillate; actinomorphic

Answer:  Ray florets : pistillate or neuter; zygomorphic

Question: Flowers with monadelphous condition and pentacarpellary ovary are present in

• a) China rose family
• b) Pea family
• c) Potato family
• d) Yucca family

Answer: China rose family

Question: 

A. Citrus and Ricinus have synandrous condition.
B. In epitepalous condition, the cohesion occurs bewteen tepal and filament of stamen.
C. Tetradynamous condition consists of two long and four short stamen filaments

• a) All are incorrect
• b) Only A is incorrect
• c) Only C is incorrect
• d) Only B is incorrect

Answer: All are incorrect

Question: Presence of staminode is characteristic feature of

• a) Caesalpinoideae
• b) Mimosoideae
• c) Arecaceae
• d) Euphorbiaceae

Answer:  Caesalpinoideae

Question:

• a) a(i), b(ii), c(iv), d(iii)
• b) a(i), b(ii), c(iii), d(iv)
• c) a(iii), b(ii), c(i), d(iv)
• d) a(ii), b(i), c(iv), d(iii)

Answer: a(i), b(ii), c(iv), d(iii)

Question: Find incorrect matching

• a) Balausta – Aril
• b) Pome – Fleshy thalamus
• c) Schizocarp – Mericarp
• d) Syconus – Hypanthodium

Answer: Balausta – Aril

Question: Most common fruits of fabaceae and brassicaceae are respectively

• a) Legume and Siliqua
• b) Legume and Samara
• c) Lomentum and Siliqua
• d) Lomentum and Silicula

Answer:  Legume and Siliqua

Question: In Coriandrum, the prolongation of thalamus beyond the carpel is called as

• a) Carpophore
• b) Androphore
• c) Gynandrophore
• d) Gynophore

Answer: Carpophore

Question: A dry dehiscent fruit which develops from multicarpellary, syncarpous superior ovary with axile placentation, is

• a) Capsule
• b) Siliqua
• c) Achene
• d) Lomentum

Answer: Capsule

Question: Scutellum is a

• a) Shield shaped and large cotyledon of grasses
• b) Remnant of cotyledon in maize
• c) Food storing haploid structure in grass embryo
• d) Protective covering of plumule in grasses

Answer: Shield shaped and large cotyledon of grasses

Question: There are given some plants below, select among the options that, to how many families they belongs? Plants are - Crotolaria, Atropa, Solanum, Arachis, Bambusa and Chrysanthemum

• a) 4 families
• b) 6 families
• c) 2 families
• d) 3 families

Answer: 4 families

Question:

• a) Allium and Asparagus
• b) Crotolaria and Astragalus
• c) Lepidium and Iberis
• d) Vetiveria and Cymbopogon

Answer: Allium and Asparagus