When a female child is born, her ovaries already contain thousands of immature eggs (or ova) contained in immature structures A. On maturing, A bursts open and an egg shoots out of the ovary in a process called B. The process B starts in the females at puberty and occurs again and again after a time period x. Before every occurrence of process B, the inner lining of uterus becomes thick and soft with lots of blood vessels in it.
When the egg cell gets fertilised by a sperm, then an event C occurs in the life of mature human female which lasts for time period y leading to the birth of baby. If, however, the egg cell released by the ovary does not get a sperm to fuse with, then the thick and soft inner lining of uterus breaks down and comes out of the female's body in the event called D. The occurrence of event D is controlled by chemical substances E.

(a) What are A?

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Solution

Follicles are the immature structure (A) that contains thousands of immature ova since the birth of the girl child.

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Similar questions

Assertion: Female ovaries have thousands of immature egg cells after birth.

Reason: Eggs are released from ovaries throughout one’s life.

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The human female gonads are ovaries. A maturing egg in the ovary present in a sac of cells called______________(a). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called as ________________(b) follicle. The process of releasing the egg from the ovary is called ____________(c). The ovum is picked up by oviduct finally and fertilization takes place in the ______________(d). In about a week the blastocyst gets fixed in the endometrium of the uterus and this process is called _______________(e).

Copy and complete the following by filling in the blanks in the appropriate words.

The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called the follicle. As the egg grows larger, the follicle enlarges and gets filled with a fluid, and is now called the Graafian follicle. The process of releasing the egg from the ovary is called __________. The ovum is picked up by the oviducal funnel and fertilization takes place in the Fallopian tube. In about a week the blastocyst gets fixed in the endometrium of the uterus and this process is called _________.

Q. Complete the following by filling in the blanks 1 to 5 with appropriate words: The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called ___________(1). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called the __________(2) follicle. The process of releasing the egg from the ovary is called _________(3). The ovum is picked up by the oviducal funnel and fertilisation takes place in the ________(4). In about a week the blastocyst gets fixed in the endometrium of the uterus and this process is called __________(5).

Q. Copy and complete the following by filling in the blanks 1 to 5 with appropriate words:
The human female gonads are ovaries. A maturing egg in the ovary is present in a sac of cells called .......(1). As the egg grows larger, the follicle enlarges and gets filled with a fluid and is now called the ......(2) follice. The process of releasing the egg from the ovary is called .......(3). The ovum is picked up by the oviducal funnel and fertilization takes place in the .......(4). In about a week the blastocyst gets fixed in the endometrium of the uterus and this process is called .......(5)

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