HARD
Earn 100

Read the following four statements (A - D).

(A) Both photophosphorylation and oxidative phosphorylation involve uphill transport of protons across the membrane.

(B) In dicot stems, a new cambium originates from cells of pericycle at the time of secondary growth.

(C) Stamens in flowers of Gloriosa and Petunia are polyandrous.

(D) Symbiotic nitrogen fixers occur in free-living state also in soil.

How many of the above statements are right ?

27.27% studentsanswered this correctly

Important Questions on Morphology of Flowering Plants

EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Pollen grains are well-preserved as fossils because of the presence of _____.
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
The Campylotropous ovule is characterized by _____.
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower

Match the following lists:

List I List II
A) Epidermis I) Thin walled cells
B) Tapetum II) One celled thick
C) Endothecium III) Inner most layer
D) Stomium IV) Fibrous thickening
  V) Meiosis

The correct match is:

HARD
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
When and where do tapetum and synergids develop in flowering plants? Mention their function.
EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
In Angiosperms, microsporogenesis and megasporogenesis:
EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
The ovule of angiosperm is technically known as :
EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
If we explore anther wall from outside to inside then which sequence will be correct?
A- Endothecium
B- Tapetum
C- Epidermis
D- Middle Layer
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Draw a labelled diagram of a germinating pollen grain with at least four labellings.
EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Which one of the following statements is not true?
EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
The ovule of an angiosperm is technically equivalent to
MEDIUM
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Where are the sporopollenin present in the male gametophyte of an angiosperm? Mention the function of it.
EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Proximal end of the filament of stamen is attached to the:
EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Where are the generative cell present in the male gametophyte of an angiosperm? Mention the function of it.
EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Some seeds such as black pepper and beet, remnants nucellus persist is known as:
HARD
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Draw a schematic transverse section of a mature anther of an angiosperm. Label its epidermis, middle layers, tapetum, endothecium, sporogenous tissue and the connective.
HARD
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower

Why meiosis is essential at the time of sporogenesis in angiosperms? Explain the process of formation of male gametophyte in angiosperms with suitable diagrams.

HARD
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Draw a labelled diagram of the T.S. of a mature anther.
EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, radish, gram and turnip have stamens with different lengths in their flowers?
EASY
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Male gametophyte in angiosperms produces :
HARD
Biology>Structural Organisation in Plants and Animals>Morphology of Flowering Plants>Flower
Which one of the following statements is not true?