Rhizophora is

  • A type of root

  • A type of plant growing in swampy area

  • A type of plant growing in desert

  • A type of root for photosynthesis

Find the odd one out-

  • Maize

  • Sugarcane

  • Banyan

  • Turnip

China rose is not characterized by:

  • Axile placentation

  • Valvate aestivation

  • Monoadelphous stamen

  • Superior ovary

In cymose type of inflorescence:

  • Main axis continues to grow and the flowers are borne in acropetal succession.

  • Main axis continues to grow and the flowers are borne in basipetal succession.

  • Growth is limited and the flowers are borne in basipetal succession.

  • Growth is limited and the flowers are borne in acropetal succession.

Ovary is one-chambered but it becomes two chambered due to the formation of a false septum in:

  • Dianthus and Primrose

  • Mustard and Argemone

  • Sunflower and Marigold

  • Pea and Lemon

In monocotyledonous seeds the outer covering of endosperm separates the embryo by a proteinous layer called as:

  • Aleurone

  • Scutellum

  • Testa

  • Tegmen

Which of the following is not a floral character of the family Fabaceae?

  • Calyx - Sepals five, gamosepalous; imbricate aestivation

  • Corolla - Petals five, polypetalous; vexillary aestivation

  • Andreoecium - Ten, diadelphous, anther dithecous

  • Gynoecium - Ovary inferior, bicarpellary, unilocular with many ovules

In marginal placentation, the placenta forms a ridge along the:

  • Ventral suture of the ovary

  • Dorsal suture of the ovary

  • Anterior suture of the ovary

  • Posterior suture of the ovary

A lateral branch with short internodes and each node bearing a rosette of leaves and a tuft of roots is found in:

  • Chrysanthemum

  • Pistia

  • Jasmine

  • Pineapple

Zygomorphic flower is not found in:

  •  Cassia

  • Canna

  • Gulmohur

  • Bean

The following diagram can represent the position of the ovary in:

 

  • Brinjal

  • Guava

  • Rose

  • Mustard

Ovary is one-chambered but becomes two-chambered due to the formation of the false septum in:

  •  Argemone

  •  Salvia

  •  Cassia

  •  Primrose

Which of the following is not a correct floral character of the members of family Solanaceae?

  • Flower : Zygomorphic

  • Calyx : Valvate aestivation

  • Stamens : Epipetalous

  • Fruit : Berry or capsule

Pneumatophores are seen in:

  •  Rhizophora

  • Banyan tree

  • Carrot

  • Turnip

When a shoot tip transforms into a flower,

  • It is always solitary

  • The flower is always short-lived

  • It is never solitary

  • The flower is always long-lived

Some foliar roots also produce adventitious roots as in:

  •  Oxalis

  •  Coleus

  •  Tapioca

  •  Bryophyllum

Chief characteristics of stem do not include:

  • Develops from the plumule

  • Positive phototropic nature

  • Presence of nodes and internodes

  • Endogenously developed multicellular hair

Match aerial modifications of stem given in column I with their descriptions in column II and choose your answer from the codes given below:

A   

Phylloclade   

P   

Green, flattened or cylindrical branches of unlimited growth

B

Cladode

Q

Branches of limited growth that become green and flat like a leaf

C

Bulbil

R

Modified vegetative bud with stored food meant for reproduction

Codes:

 

A     

B     

C

1.

P

Q

R

2.

P

R

Q

3.

R

P

Q

4 . 

Q

R

P
  • 1
  • 2
  • 3
  • 4

In racemose type of branching:

  • Branches continue to grow indefinitely and give off further branches laterally in a basipetal order

  • Branches continue to grow indefinitely and give off further branches laterally in an acropetal order

  • Branches stop growing after some time and give off further branches laterally in a basipetal order

  • Branches stop growing after some time and give off further branches laterally in an acropetal order

In Australian Acacia, the petiole or any part of rachis becomes flattened taking the shape of a leaf and turning green in color. This structure is called as:

  • Phylloclade

  • Cladode

  • Phyllode

  • bulbil

In the ray florets of sunflower, the condition of the flower is termed as:

  • Superior

  • Inferior

  • Epigynous

  • Hypogynous

The given floral formula describes:

Br ⊕   P(3+3) A3+3 G(3)

  •  Asparagus

  • Belladonna

  •  Indigofera

  • Mustard

In vexillary aestivation:

  • The standard overlaps the wings

  • The standard overlaps the keel

  • The standard is overlapped by keel

  • The keel overlap the wings

Which of the following would not be a character of Asparagus?

  • Actinomorphic flower

  • Imbricate aestivation

  • Superior ovary

  • Endospermous seed

The cells of which of the following regions of the root are responsible for growth of its length?

  • Root cap

  • Region of meristematic activity

  • Region of elongation

  • Region of maturation

Identify the correct statement regarding the stem morphology from the following:

I. Stems bear only axillary buds.

II. Axillary buds may get modified into thorns as in Citrus

III. Stem tendrils develop from axillary buds as in gourds.

  • Only I and II

  • Only I and III

  • Only II and III

  • I, II and III

The type of placentation show in the given figure is seen in:

  •  Dianthus

  •  Argemone

  • China rose

  • Marigold

The given floral diagram can be of:

  •  Asparagus

  •  Atropa belladonna

  • Mustard

  • Indigofera

Match the columns A and B.

                    A                                      B

a. Marginal placentation                      (i) Marigold

b. Axile placentation                          (ii) Dianthus

c. Parietal placentation                      (iii) Argemone

d. Free central placentation                (iv) Chinarose

e. Basal placentation                          (v) Pea

 

  • a-v, b-iv, c-iii, d-ii, e-i

  • a-v, b-iii, c-iv, d-i, e-ii

  •  a-iV, b-iii, c-V, d-ii, e-i

  • a-i, b-v, c-iv, d-iii, e-ii

An inferior ovary:

  • is situated on the receptacle above the perianth and androecium.

  • is positioned below the sites of attachment for perianth and androecium. 

  • forms a hypanthium.

  • is positioned below the receptacle.

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