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प्रश्न
A neat labelled diagram describes the parts of a typical angiospermic ovule.
उत्तर
The main part of the ovule is the nucellus which is enclosed by two integuments, leaving an opening called the micropyle. The ovule is attached to the ovary wall by a stalk, called funiculus. The basal part is Chalaza.
Structure of an Ovule
The embryo sac contains seven cells and the eighth nuclei located within the nucellus. Three cells at the micropylar end form the egg apparatus and the three cells at the chalazalnte9uments end are the antipodal cells. The remaining two nuclei are called polar nuclei found in the centre. In the egg apparatus, one is the egg cell (female gamete) and the remaining two cells are the synergids.
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संबंधित प्रश्न
Given here is a section of the female reproductive system of human beings.
Name the parts labelled 1 to 4
Which part of the human body produces Ova?
The diagram given below represents a system in the human body. Stud the diagram and answer the following questions:
Identify the system
Give Reasons
Most often only one embryo is formed at a time although there are two ovaries in women. Explain.
Name the Following
A female gonad is responsible for the production of ova.
Name the Following
The term used for the mature follicles.
Give Technical Term:
Which part develops during the advanced pregnancy?
Identify the distal narrow part of the duct opening into the uterus.
Figure A shows the front view of the human female reproductive system and Figure B shows the development of a fertilized human egg cell
Figure A
Figure B
Identify the correct stage of development of the human embryo (Figure B) that takes place at the sites X, Y, and Z respectively in the human female reproductive system (Figure A).
Choose the correct option from the table below:
| X | Y | Z | |
| A | Morula | Fertilized egg | Blastocyst |
| B | Unfertilized egg | Fertilized egg | Morula |
| C | Blastocyst | Fertilized egg | Unfertilized egg |
| D | Fertilized egg | Morula | Blastocyst |
Tubectomy is carried out by blocking the ______
