Reproduction in Plants - Female Gametophyte (AIPVT)
Anatomy of gynoecium, ovule structure, placentation types, and embryo sac in plants
Questions
What is the terminal round head of gynoecium called?
- Style
- Stigma
- Ovary
- Carpel
In which of the following plants is basal placentation observed?
- Hibiscus
- Helianthus
- Pisum
- Brassica
Which of the following is the origin centre of an ovule?
- Pistil
- Funicle
- Placenta
- Ovary
What is the point where the body of an ovule attaches to funicle called?
- Nucellus
- Hilum
- Micropyle
- Chalaza
Which structure attaches the ovule to the placenta?
- Style
- Connective
- Funicle
- Micropyle
The opening through which the pollen grains enter the nucellus is called
- germ pore
- micropyle
- chalaza
- hilum
Where is chalaza present in the ovule?
- Between the junction of nucellus and integuments
- Above the junction of nucellus and integuments
- Below the junction of nucellus and integuments
- At the apex of ovule
A placentation that consists of a single compartment without septa and ovules attached to a central column that arises directly from the floral apex is called
- marginal placentation
- apical placentation
- free central placentation
- parietal placentation
Which kind of cells constitute the nucellus?
- Collenchyma
- Sclerenchyma
- Parenchyma
- Chlorenchyma
Egg apparatus is found
- at chalazal end of the embryo sac
- in the centre of the embryo sac
- at the micropylar end of the embryo sac
- between the integuments
The cells constituting the egg apparatus are
- 1 egg cell + 1 synergid
- 1 egg cell + 2 synergid
- 2 egg cells + 1 synergid
- 3 synergids
How many cells are there in an embryo sac?
- 8
- 7
- 3
- 1
How many megaspores are produced by megaspore mother cell after division?
- 3
- 4
- 1
- 2
In which of the following ovules do funicle, chalaza and micropyle lie in a vertical line?
- Amphitropous
- Anatropous
- Orthotropous
- Hemitropous
Which type of ovule is present in family Leguminoseae?
- Circinotropous
- Campylotropous
- Amphitropous
- Anatropous