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प्रश्न
Where are the pollen grains produced?
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उत्तर
Pollen grains are produced by anther.
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संबंधित प्रश्न
A student has to perform the experiment "To identify the different parts of an embryo of a dicot seed." Select from the following an appropriate group of seeds:
(a) Pea, gram, wheat
(b) Red kidney bean, maize, gram
(c) Maize, wheat, red kidney bean
(d) Red kidney bean, pea, gram
"The chromosomal number of the sexually producing parents and their offspring is the same." Justify this statement.
How is the process of pollination different from fertilization?
A flower may have either male or female reproductive parts. Such a flower is called ______.
How does the process of fertilisation take place in flowers?
What is the function of a flower?
Fill in the following blank with suitable word :
Ovules contain ......... gametes of a plant.
Fill in the following blank with suitable word :
The male organ of reproduction in the flower is the.......... .
How is the process of pollination different from fertilization?
What type of plants reproduce by sexual reproduction method?
Name the part of a seed which grows into root.
How does pollination occur?
Which among the following statements are true for unisexual flowers?
(i) They possess both stamen and pistil
(ii) They possess either stamen or pistil
(iii) They exhibit cross pollination
(iv) Unisexual flower possessing only stamens cannot produce fruits
(a) (i) and (iv)
(b) (ii), (iii) and (iv)
(c) (ii) and (iii)
(d) (i), (iii) and (iv)
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.
(a) Name A. What are the various parts of A?
(b) Which part of A contains gametes?
(c) Name B. What is the swollen top of B known as?
(d) What does the swollen top of b contain?
(e) Out of A and B, which one is (i) male part, and (ii) female part of the flower?
In what ways is fertilisation in a plant similar to fertilisation in a human?
Put a tick mark (✓) against the correct alternative in the following statement
Pollen is produced in the:
Multiple choice question. Tick (✓) the correct choice:
The male gamete is present inside the which germinates.
- the style
- the stigma
- the anther
- the ovary
Fill in the blanks:
A stamen consists of ______ and ________.
State whether the following statement is true (T) or false (F):
Stamens make egg cells.
Mention the function of Anther.
Draw a diagram of the longitudinal section of a flower exhibiting germination of pollen on stigma and label (i) ovary, (ii) male germ-cell, (iii) female germ-cell and (iv) ovule on it.
Describe an activity to demonstrate phototropism.
Sketch the labelled diagram.
Flower with its sexual reproductive organs.
Explain sexual reproduction in plants.
Draw a diagram of the longitudinal section of a flower and label the following parts.
Identify the parts A, B, C, and D?
Antipodal cells are present towards the ______ in an anatropous ovule.
How many middle layers are generally present in the wall of the anther lobes?
The 3-celled egg apparatus at the micropylar end comprises of ______
Sperm and egg nuclei fuse due to ______.
In a flowering plant, archesporium gives rise to ______.
Pineapple fruit develops from ______.
The seed that contains the future plant is called the ______
In human beings, fertilization occurs in the ______
State the number of sets of chromosomes present in a zygote.
Double fertilization is essential for formation of ______.
What is the function of calyx?
Triple fusion involves ______.
Given below is a diagram of a germinating seed. Label the parts that:
- gives rise to future shoot.
- gives rise to future root system.
- stores food.
