Advertisements
Advertisements
प्रश्न
Name the parts A, B and C shown in the following diagram and state one function of each.
Advertisements
उत्तर
The given diagram represents the reproductive parts of a flower. The labelling is as follows:-
A: Anther: It produces pollen grains which are the male gametes.
B: Style: It connects the stigma and ovary and helps in transfer of pollen to the ovary.
C: Ovary: It contains ovules which are female gametes.
संबंधित प्रश्न
You are asked by your teacher to study the different parts of an embryo of a gram seed. Given below are the steps to be followed for the experiment:
I. Soak the gram seeds in plain water and keep them overnight.
II. Cut open a soaked seed and observe its different parts.
III. Take some dry gram seeds in a petri dish.
IV. Drain the excess water.
V. Cover the soaked seeds with a wet cotton cloth and leave them for a day.
The correct sequence of these steps is :
(A) III, I, V, IV, II
(B) III, I, II, IV, V
(C) III, IV, V, I, II
(D) III, I, IV, V, II
How does the process of fertilisation take place in flowers?
In what ways is fertilisation in a plant similar to fertilisation in a human?
State whether the following statement is true (T) or false (F):
Flowers which possess stamens and carpel are called unisexual.
Distinguish between unisexual and bisexual flowers giving one example of each. Draw a diagram showing process of germination of pollen grains on stigma and label the following parts:
(a) Female germ cell
(b) Male germ cell
(c) Ovary
The process of release of eggs from the ovary is called ______
State the number of sets of chromosomes present in a zygote.
What is the function of calyx?
Name the reproductive parts of an angiosperm. Where are these parts located? Explain the structure of its male reproductive part.
Type of sexual reproduction is ______.
