The floral diagram shown in the given diagram can be of:

 

  • A plant that produces a chemical that can disrupt mitotic spindle

  • Deadly night shade

  • Indigofera plant, a source of dye

  • A pulse plant

The region responsible for growth in the length of root is:

  • A

  • B

  • C

  • D

Match each item in Column I with one item in Column II and chose your answer from the codes given below.

Column I

(Flower)

Column II

(Position of ovary)

I. Sunflower

II. Mustard

III Plum

1. Epigynous

2. Hypogynous

3. Perigynous

Codes:

                I            II            III

  •              1            2             3 

  •              2            3             1

  •              2            1             3 

  •              3            2             1 

is the floral formula of

  • Allium

  • Sesbania

  • Petunia

  • Brassica

The wheat grain has an embryo with one large, shield-shaped cotyledon known as

  • epiblast

  • coleorrhiza

  • scutellum

  • coleoptile

In ginger vegetative propagation occurs through

  • rhizome

  • offsets

  • bulbils

  • runners

Plants, which produce characteristic pneumatophores and show vivipary belong to

  • mesophytes

  • halophytes

  • psammophytes

  • hydrophytes

Root hairs develop from the region of

  • maturation

  • elongation

  • root cap

  • meristematic activity

In Bougainvillea, thorns are the modifications of

  • stipules

  • adventitious root

  • stem

  • leaf

Coconut fruit is a

  • drupe

  • berry

  • nut

  • capsule

The term 'polyadelphous' is related to 

  • gynoecium

  • androecium

  • corolla

  • calyx

How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, raddish, gram and turnip have stamens with different lengths in their flowers?

  • Three

  • Four

  • Five

  • Six

Radial symmetry is found in the flowers of 

  • Brassica

  • Trifolium

  • Pisum

  • Cassia

Free-central placentation is found in

  • Dianthus

  • Argemone

  • Brassica

  • Citrus

Tricarpellary, syncarpous and gynoecium is found in flowers of

  • Solanaceae

  • Fabaceae

  • Poaceae

  • Liliaceae

Cotyledon of maize grain is called

  • coleorhiza

  • coleoptile

  • scutellum

  • plumple

Which of the following is not a stem modification?

 

  • Thorns of citrus

  • Tendrils of cucumber

  • Flattened structures of Opunita

  • Pitcher of Nepenthes

Proximal end of the filament of stamen is attached to the

  • connective

  • placenta

  • thalamus or petal

  • anther

Stems modified into flat green organs performing the functions of leaves are known as

  • phyllodes

  • phylloclades

  • scales

  • cladodes

The standard petal of a papilionaceous corolla is also called

  • pappus

  • vexillum

  • corona

  • carina

Roots play insignificant role in absorption of water in

  • sunflower

  • Pistia

  • pea

  • wheat

Axile placentation is present in

  • dianthus                   

  • lemon

  • pea                           

  •  Argemone

Among China rose, mustard, brinjal, potato, guava, cucumber, onion and tulip, how many

plants have superior ovary?

  • Five                         

  • Six

  • Three                       

  • Four

Perigynous flowers are found in 

  • Guava

  • Cucumber

  • China rose

  • Rose

Leaves become modified into spines in

  • Opuntia

  • pea

  • onion

  • silk cotton

The hilum is a scar on the

 

  • seed, where funicle was attached

  • fruit, where it was attached to the pedicel

  • fruit, where style was present

  • seed, where micropyle was present

When the margins of sepals or petals overlap one another without any particular direction, the condition is termed as

  • vexillary

  • imbricate

  • twisted

  • valvate

An example of an edible underground stem is

  • carrot

  • groundnut

  • sweet potato

  • potato

An aggregate fruit is one which develops from

  • multicarpellary syncarpous gynoecium

  • multicarpellary apocarpus gynoecium

  • complete inflorescence

  • multicarpellary superior ovary

Among bitter gourd, mustard, brinjal, pumpkin, China rose, lupin, cucumber, sunnhemp, gram, guava, bean, chili, plum, Petunia, tomato, rose, Withania, potato, onion, aloe and tulip, how many plants have hypogynous flower?

  • Six

  • Ten

  • Fifteen

  • Eighteen

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Practice Botany Quiz Questions and Answers