Tag: the flower
Questions Related to the flower
Colour of Bougainvillea flower is due to colour of its ________.
-
Corolla
-
Bracts
-
Calyx
-
Androecium
The flowers of Bougainvillea are bright pink in colour because of the colour of the bracts. These flowers do not have a distinct and differentiated corolla as well as calyx. Three tiny flowers are surrounded by the bracts. These bracts are modified leaves. They protect the flower and attract the pollinators.
Identify the wrong statement.
-
A plant that bears male, female and bisexual flowers is polygamous
-
Actinomorphic flower can be dissected into two equal halves from any place
-
Superior ovary is found in hypogynous flowers
-
Side of the flower towards the bract is called posterior side
When the flowers are laterally borne, then the side of the flower towards the apex of central axis or mother axis is considered to be the posterior side in a floral diagram while the side opposite to the posterior side is towards bracts and is called the anterior side. So, side of the flower towards the bract is called the anterior side.
Individual members of perianth are called ________.
-
Bracteoles
-
Bracts
-
Spathes
-
Tepals
In some flowers like onion and Asphodelus, the calyx and corolla are not distinct. They are collectively called the perianth. The perianth is an accessory whorl whose individual member is called tepal. Based on the appearance, the tepals can be petaloid (coloured) or sepaloid (green).
Perianth refers to
-
Nonessential floral organs
-
Essential floral organs
-
Fused stamens and carpels
-
Undifferentiated calyx and corolla
When the calyx and corolla are indistinct and undifferentiated, the resultant whorl is called the perianth.
Structure equivalent to perianth is
-
Superior palea
-
Inferior palea
-
Glumes
-
Lodicules
The term perianth is used to refer to the condition when the calyx and corolla are not differentiated. In grasses, the similar condition is seen by the presence of lodicules, that are situated below the ovary.
Individual components of perianth are called ______.
-
Sepals
-
Petals
-
Tepals
-
Bracts
The whorl perianth represents undifferentiated calyx and corolla. Its individual units are called tepals. Tepals can be petaloid if coloured bright or sepaloid if green.
Achalmydeous flower occurs in
-
Sunflower
-
Betel
-
Onion
-
Avena
Achlamydeous condition refers to the absence of both the calyx and the corolla. Instead, there is a presence of the whorl called perianth. This type of condition is seen in betel, belonging to the family Piperaceae.
Involucre is composed of
-
Bracts
-
Extra calyx
-
Bracteoles
-
Scale leaves
Involucre refers to the group of bracts that are arranged in one or more whorls around the flowers. Example, sunflower.
Read the statements carefully :
a) Flowers are morphological and embryological marvel and the site of sexual reproduction
b) The proximal end of the filament is attached to the thalamus or the petal of the flower
c) The number and length of stamens are variable in flowers of different species
d) stamen attached to the petal is epipetalous
How many above statements are correct
-
One
-
Two
-
Three
-
Four
Flowers are the site of sexual reproduction in a flowering plant. They are a morphological and embryological marvel. The proximal end of the filament of the stamen is attached to the thalamus or the petal of the flower. The number and length of stamens are variable in flowers of different species. The number varies from 3 to 10 in different species. Also, the size of stamens varies largely in different species. Stamen attached to the petal is called as epipetalous. For example, Brinjal.
Bougainvillea flower is an example of
-
incomplete flower
-
having a large nectary
-
water pollination
-
large colorful bracts
Bougainvillea flower of the plant is generally white and in which each cluster of 3 flowers is surrounded by 3 or 6 bracts with the bright colors associated with the plant, including purple, magenta, red, pink, white, or yellow, orange,