Advertisements
Advertisements
Question
Differentiate between:
Marginal placentation and Parietal placentation
Solution
Marginal placentation | Parietal placentation |
There is a single placenta | Two or more placenta are present. |
The single placenta develops along the junction of the two fused margins. | The ovary is unilocular and has two or more longitudinal placenta. |
E.g. Pea | E.g. Argemone |
APPEARS IN
RELATED QUESTIONS
Name the type of androecium found in bombax .
Explain the terms Monadelphous, Diadelphous and Polyadelphous. In each case name a flower possessing such an androecium.
Find the odd one out. Give reason.
Give the difference in the function between the following parts:
Pollen and Ovule
Very Short Answer Type Question:
What are ovules?
Short Answer Type Question:
Why are petals colourful?
Which flower bud is used as spices in food?
Correct the following statement and rewrite it in your notebook.
If the sepals of a flower are joined together, its petals are also joined together.
Draw a flower, you have studied for the Table.
Observations on flowers | ||||||
Name of flower/plant | Number and colour of sepals | Number and colour of petals | Are the sepals joined or separate? | Are the petals joined or separate? | Stamens - are they free or joined to petals | Pistil - Present/absent |
Rose | Many (Colour ?) | 5 (colour ?) | separate | Free | Present |
From the following plants, which of them have flowers?
Grass, maize, wheat, chilli, tomato, tulsi, peepal, shisham, banyan, mango, jamun, guava, pomegranate, papaya, banana, lemon, sugarcane, potato, groundnut.