Colocasia

  • Has root modified for storage

  • Has leaf modified for xerophytic adaptation

  • Has stem modified for storage

  • All of these

Which of the following underground stems does not act as organ of perennation to tide over Conditions unfavorable for growth?

  • Ginger

  • Turmeric

  • Zaminkand

  • Strawberry

Stem tendrils develop from

  • Axillary buds

  • Terminal buds

  • Leaves

  • Internodes

Which of the following is not true about stem tendrils?

  • Slender

  • Spirally coiled

  • Help plants to climb

  • Arise from terminal bud

Which of the following is not a gourd tendril?

  • Cucumber

  • Pumpkins

  • Watermelon

  • Grapevines

Thorns develop from

  • Axillary buds

  • Terminal buds

  • Leaves

  • Phyllode

The characteristic of thorns are

  • Herbaceous, coiled and slender

  • Woody, straight and pointed

  • Herbaceous, straight and slender

  • Woody, coiled and pointed

The following modification of stem is used in protection from browsing animals-

  • Tendril

  • Node

  • Thorn

  • Fleshy cylinder

Which of the following is not a stem modification?

  • Turnip

  • Citrus

  • Bougain villea

  • Grapevines

Thorn is not found in

(1) Citrus

  • (4) Both 1 nd 2

  • (2) Bougainvillea

  • (3) Cuumber

  • 4

Stem tendril is not found in

  • Cucumber

  • Pumpkins

  • Watermelon

  • Citrus

Some plants of arid regions have which of the following modification?

  • Flattened stem-Opuntia

  • Underground stem-Potato

  • Thorn-Citrus

  • Tendril- Grapevine

Which of the following has chlorophyll in their stem to carry out photosynthesis?

  • Opuntia

  • Citrus

  • Bougainvillea

  • Cucumber

Which of the following has chlorophyll in it's flattened stem to carry out photosynthesis?

  • Opuntia

  • Euphorbia

  • Citrus

  • Watermelon

Stem spreads to new niches and when older parts die new parts are formed.

Find the one which doesn't belong to the above category.

  • Grass

  • Strawberry

  • Mint

  • All of these

The stem of Pistia and Eichhornia has

  • Short internode

  • Rosette of leaves

  • Tuft of Roots

  • All of these

Aquatic plants with a lateral branch having short internodes, rosette of leaves and tuft of roots are

  • Pistia, Hydrilla

  • Eichhornia, Hydrilla

  • Pistia and Eichhornia

  • Hydrilla and Valisnaria

The lateral branches originate from the basal and underground portion of the main stem, grow horizontally beneath the soil and then come out obliquely upward to give rise to leafy shoot?

Which of the following examples are associated with such modifications?

  • Banana, Mint and Jasmine

  • Banana, Pineapple, Chrysanthemum

  • Pineapple, Mint, Citrus

  • Papaya, Citrus, Banana

Generally leaf is not

  • Lateral
  • Swollen
  • Developing on node
  • Bearing bud in its axil

Leaves

Find the incorrect statement.

  • Arranged in acropetal manner

  • Most important reproductive organ in plants

  • Important for photosynthesis

  • A typical leaf has three main parts- leaf base, Petiole and lamina

Leaf

  • Attached to the stem by the leaf base

  • Always bear two lateral small leaf like structures called stipules

  • Monocots have small sheath like leaf base which covers the stem wholly

  • All leguminous plants have swollen leaf base

Which of the following parts of leaf has major role to hold the blade to light?

  • Lamina

  • Petiole

  • Sheath

  • Stipule

The fluttering of the leaf blade is facilitated by

  • Swollen pulvinus

  • Membranous sheath

  • Long and thin Petiole

  • Broad lamina

Veins and veinlets are not present in

  • Lamina

  • Leaf blade

  • Leaf broader surface

  • Leaf base

Midrib is usually not used in

  • Middle

  • Prominent vein

  • A mean to provide rigidity

  • transport only water, minerals, gases like carbon dioxide and food materials

Which of the following is relatively constant in all dicot leaves?

  • Shape

  • Margin, apex and surface

  • Extent of incision

  • Venation

The arrangement of veins and the veinlets in the lamina of leaf is termed as

  • Venation

  • Vernation

  • Vernalization

  • Phyllotaxy

Simple leaf

  • Do not have any incisions

  • Always intact lamina

  • Incisions of the lamina reach to midrib

  • Entire lamina or when incisions do not reach to midrib

Compound leaf

  • Has leaflets or incised lamina without leaflets

  • Incisions reach to midrib

  • Axils of leaflets have bud

  • All of these

Rachis is

  • A prominent vein

  • Midrib

  • Found in pinnately compound leaf

  • All of these

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Practice Botany Quiz Questions and Answers