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Sexual Reproduction in Plants

The proximal ...

Question

The proximal end of the stamen is attach to the or _____ part of flower.

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Solution

The proximal end of the stamen is attached to the thalamus or receptacle part of flower.
The stamen is made up of anther, connective and filament. The anther are the anterior parts and they are involved in the formation of pollen grains. The two lobes of anther are united with the help of connective. The posterior part of stamen is called the filament and it is attached to the thalamus or the receptacle part of flower.

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Q. Read the following four statements (A-D).

(A) Flowers are the morphological and embryological marvel and the site of sexual reproduction.
(B) Anther are attached to the proximal end of the filament of stamen.

(C) Androecium and gynoecium represent the non-essential part of the flower.

(D) The number and length of stamens are variable in flower of different species.

How many statements are correct?

Q. 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

Q. Stamen is the male part of a flower.

Q. A student observed four plants (A, B, C, D). The number of stamens in a flower of 'A' is equal to those of a flower of 'B'. Out of the ten stamens arranged in two bundles in a flower of 'C', the stamen number in the bundle which possesses most of the stamens is three times to that of inner whorl of a flower of 'A'. In 'D', the number of stamens is equal to those present in the inner whorl of plant 'B;. Identify A, B, C and D plants respectively.

Q. A student collected 15 stamens from various flowers of different plant species. She arranged them on a slide to observe them. Select the most probable observations.
i) All flowers had stamens of the same length.
ii) Different flowers had stamens of different shapes and lengths.
iii) All flowers had stamens attached to them in a similar fashion.

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