What are called the essential whorls of flower?
Important Questions on Getting to Know Plants
Which of the following is the correct option for the figure given below?
(a) Part that produces pollen grain -
(b) Part that transfers male gametes to the female gametes -
'Pollen grains' are produced by:
Draw the diagram showing the longitudinal section of a flower. Label the following parts:
i) Style
ii) Anther
Consider the following statements choose the correct answer from the given options.
Statement Innermost layer of microsporangium is tapetum.
Statement Cells of tapetum possess dense cytoplasm with more than one nucleus and nourishes developing pollen grains.
The flask-shaped organ A at the centre of a flower is surrounded by a number of little stalks B having swollen tops which lie just inside the ring of petals.
Out of A and B, which one is the male part of the flower?
The total number of microspore tetrad formed in a dithecous anther if each microsporangia has 25 microspore mother cells would be
Select the correct option with respect to labelled structure A, B, C, D, and E in the transverse section of microsporangia.
The flask-shaped organ A at the centre of a flower is surrounded by a number of little stalks B having swollen tops that lie just inside the ring of petals.
What does the swollen top of B contain? (Ovaries/Pollen grains)
The top part A of the flask-shaped reproductive organ X in the flower of a plant secretes a surgery substance into its lower part B which goes towards the bottom part C of the flask-shaped organ. When a tiny grain D coming from the top part E of another reproductive organ Y in the flower falls on part A, it grows a long tube F through the organ X in response to the sugary substance and reaches the bottom part C of flask shaped organ to carry out fertilisation.
Name (i) grain D, and (ii) part E of organ Y.
Identify the flower parts A to E in the given diagram.
