Rachis

  • Is a common axis where leaves are present

  • Is a common axis where leaflets are present

  • Is a common point where leaflets are arranged

  • Is a common point where leaves are arranged

In palmately compound leaves

  • Leaves are attached at a common point at the tip of petiole

  • Leaflets are attached at a common point at the tip of petiole

  • Leaflets are attached at a common point called rachis

  • Leaves are attached over a common axis called rachis

Palmately compound leaves are found in

  • Citrus

  • Pomegranate

  • Guava

  • Silk cotton

Phyllotaxy is

  • Pattern of arrangement of leaves on the stem or branch

  • Pattern of arrangement of petals on the stem or branch

  • Pattern of arrangement of sepals on the flower

  • Pattern of arrangement of perianth on the flower

Alternate phyllotaxy means

  • A single leaflet arises at each node

  • A single leaf arises at each node

  • Two leaflets arise at each node

  • Two leaves arise at each node

Which of the following is not an example of alternate phyllotaxy?

  • China rose

  • Mustard

  • Sun Flower

  • Calotropis

Opposite phyllotaxy means

  • A single leaflet arises at each node

  • A single leaf arises at each node

  • Two leaflets arise at each node

  • Two leaves arise at each node

More than two leaves arise from a node is called as

  • Phyllotaxy

  • Whorled

  • Venation

  • Opposite

Which of the following is an example of whorled phyllotaxy?

  • Alstonia

  • Mustard

  • Sunflower

  • China rose

The tendrils of pea are

  • Example of stem modification which are useful in climbing

  • Example of leaf modification for climbing

  • Example of leaf modification for defence

  • Example of stem modification for defence

Modification of leaves is

  • Thorn in citrus

  • Thorn in Bougainvillea

  • Spine in cactus

  • Spine in pea

The examples of fleshy leaves are

(1) Onion

  • (4) Both 1 nd 2

  • (2) Garlic

  • (3) Opuntia

  • 4

Pitcher plants have

  • Modified stem

  • Modified leaf

  • Modified stipule

  • Modified roots

Venus Fly trap

  • Has modified shoot

  • Has modified root

  • Is an insectivorous plant

  • All of these

Flower is

  • Modified leaf

  • Modified shoot

  • Modified petiole

  • Modified pedicel

Which of the following is a characteristic of flower?

  • Internodes do not elongate

  • Axis gets condensed

  • Shoot apical meristem changes to floral meristem

  • All of these

In Floral meristem

Find the odd one.

  • Apex produces different kind of floral appendages

  • These appendages are anterior

  • Successive nodes have no leaves

  • When a shoot tip transforms into a flower, it is always solitary

Inflorescence is

  • Arrangement of leaves over stem

  • Arrangement of flower over floral axis

  • Arrangement of flower over pedicel

  • Arrangement of leaves over nodes

The types of inflorescence are - Racemose and Cymose.

What is the basis of such classification?

  • The growth of pedicel

  • The growth of thalamus

  • The growth of main axis

  • The growth of leaves

If the main axis continues to grow, such inflorescence is called as

  • Racemose

  • Cymose

  • Solitary

  • Hypanthodium

Which of the following does not match with Racemose inflorescence?

  • Flowers are borne in acropetal succession

  • Flowers are borne laterally

  • The main axis continues to grow

  • The main axis shows limited growth

Which of the following is a characteristic of cymose inflorescence?

  • Flowers are borne in acropetal succession

  • Flowers are borne laterally

  • The main axis continues to grow

  • The main axis shows limited growth

The reproductive unit of angiosperms is

  • Flower

  • Leaf

  • Both A and B

  • Root

The swollen end of stalk or…….of a flower is called thalamus or…….

  • Peduncle, Bract

  • Pedicel, receptacle

  • Thalamus,Bractiole

  • Peduncle, receptacle

Which of the following is not a typical whorl of flower?

  • Androecium

  • Gynoecium

  • Corolla

  • Sepal

In all the four whorls of flower, which of the following is an accessory organ?

  • Calyx

  • Corolla

  • Perianth

  • All of these

Perianth is

(2) Indistinct calyx and Corolla

  • Distinct calyx and Corolla

  • (4) Both 2. and 3.

  • Amorphous calyx and Corolla

  • 4

Perianth is found in

  • Lily

  • Solanum

  • Pea

  • Buttercup

When a flower has both androecium and gynoecium

  • It is bisexual

  • It is unisexual

  • It is monoecious

  • It is dioecious

When a flower has either androecium or gynoecium, called as

  • Bisexual

  • Unisexual

  • Polygamous

  • Monoecious

0:0:1


Answered Not Answered Not Visited Correct : 0 Incorrect : 0

Practice Botany Quiz Questions and Answers