Question
Define the four stages in the uterine cycle.
✓
Answer
The uterine cycle consists of four distinct stages as follows :
(i) Menstruation: It lasts for about five days.
(ii) Follicle stage: From the end of menstruation to the release of the ovum, it lasts for 10-14 days.
(iii) Ovulation: It is the release of ovum from the ovary.
(iv) Corpus luteum stage: It lasts from ovulation to menstruation for about 10-14 days.
(i) Menstruation: It lasts for about five days.
(ii) Follicle stage: From the end of menstruation to the release of the ovum, it lasts for 10-14 days.
(iii) Ovulation: It is the release of ovum from the ovary.
(iv) Corpus luteum stage: It lasts from ovulation to menstruation for about 10-14 days.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Mention three important differences between the action of hormones and that of nerves in the regulatory mechanism of our body.
Differentiation between:
Guttation and bleeding
Guttation and bleeding
Differentiate between guttation and bleeding in plants.
(i) Draw a neat labeled diagram to show the metaphase stage of mitosis in an animal cell having ‘6’ chromosome.
(ii) How many daughter cells are formed at the end of mitosis and at the end of meiosis?
(iii) With reference to cell division explain the following terms:
(Chromatid, Centromere, Haploid).
(iv) Name the type of cell division that occurs during:
1. Growth of shoot 2. Formation of pollen grains.
3. Repair of worn out tissues.
(ii) How many daughter cells are formed at the end of mitosis and at the end of meiosis?
(iii) With reference to cell division explain the following terms:
(Chromatid, Centromere, Haploid).
(iv) Name the type of cell division that occurs during:
1. Growth of shoot 2. Formation of pollen grains.
3. Repair of worn out tissues.
Why is pollution prevention important?
Given below are diagrams showing different stages in the process of fertilisation of an egg in the female reproductive tract :
(i) Use the alphabets given below each diagram to show the correct order in the process of fertilisation.
(ii) Where in the female reproductive system does this process normally take place?
(iii) What is the biological term for the product of fusion?
(i) Use the alphabets given below each diagram to show the correct order in the process of fertilisation.
(ii) Where in the female reproductive system does this process normally take place?
(iii) What is the biological term for the product of fusion?
Match the items in column A with those of column B.
Column A | Column B |
(a) Auxin | (i) apical dominance |
(b) Gibberellin | (ii) cell division |
(c) Cytokinin | (iii) fruit ripening |
(d) Ethylene | (iv) internodal elongation |
Given below is a diagram of a smear of human blood. Study the same and answer the question that follow:
What is the main function of the parts labeled 1, 2 and 3 respectively?
What is the main function of the parts labeled 1, 2 and 3 respectively?
The diagram is set up to demonstrate an experiment. Pond weed was placed in five water-filled tubes. The experiment was set up as shown in the diagram. The tubes were then left for 24 hours. Write the correct answer out of the five available choices:
(i) In which tube would you except to find the plant with the least amount of starch?
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5
(ii) The tube in which most oxygen would be found is
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5
(iii) The tube in which least carbon dioxide would be found is
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5
(iv) The tube in which the plant would survive for the shortest length of time is
(a ) 1 (b) 2 (c) 3 (d) 4 (e) 5
(i) In which tube would you except to find the plant with the least amount of starch?
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5
(ii) The tube in which most oxygen would be found is
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5
(iii) The tube in which least carbon dioxide would be found is
(a ) 1 (b) 2 (c) 3 (d) 4 (e ) 5
(iv) The tube in which the plant would survive for the shortest length of time is
(a ) 1 (b) 2 (c) 3 (d) 4 (e) 5
What is the significance of the testes being located in scrotal sacs outside the abdomen. Can there be any abnormal situation regarding their locations? If so, what is that and what is the harm caused due to it?