Self-Learning Exercise A. Potato: production of stem tubers. B. Amoeba: binary fission. C. Bread mould: production of spores. D. Maize: formation of seeds.

Self-Learning ExerciseSelf-Learning Exercise

A. Potato: production of stem tubers.

B. Amoeba: binary fission.

C. Bread mould: production of spores.

D. Maize: formation of seeds.

Q:In the following examples, choose the type of reproduction that involve fertilization.

Sorry, you’re wrong!!!

Formation of stem tubers in potato is a type of asexual

reproduction. Fertilization is not involved.

Try again!!!Try again!!!


Binary fission in amoeba is a type of asexual reproduction. Fertilization is not involved.



Production of spores in bread mould is a type of asexual

reproduction. Fertilization is not involved.


Congratulations!!!Congratulations!!!

You’ve

got the

correct

answer!

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Self Learning ExerciseSelf Learning ExerciseHere is a graph showing the changes in the thickness of the uterine wall of a woman during the period from 10 April to 8 May:

Q: Which of the following date was fertilization most likely to take place?

A. 10-April.

B. 15-April.

C. 23-April.

D. 5-May.

10-Apr

14-Apr

18-Apr

22-Apr

26-Apr

30-Apr

4-May

8-May

Date

Thickness ofuterine wall

Sorry, you’ve got the wrong answer!!!

10-April was more likely to be the date of menstruation because the thickness of the uterine wall was decreasing. Therefore, ovulation could not take place on that date

and hence no fertilization.

Try again...


The uterine wall was not thick enough to prepare for implantation of embryo on 15-April. Therefore, fertilization was not likely to take

place on that date.

Try again...

Congratulation!!!

You’ve got the correct answer!!!

Go to next question...


The thickness of the uterine wall was decreasing on 5-May, which

was most probably the beginning of menstruation. Therefore, ovulation was not likely to take place on that

date and hence no fertilization.

Try again...


Q: Which of the following dates was menstruation most likely to occur?

A. 10-April to 14-April.

B. 15-April to 21-April.

C. 22-April to 26-April.

D. 27-April to 3-May.

10-Apr

14-Apr

18-Apr

22-Apr

26-Apr

30-Apr

4-May

8-May

Date


Congratulation!!!




The thickness of the uterine wall was increasing from 15-April to 21-April. Therefore, menstruation was

unlikely to occur on these dates.

Try again...


The thickness of the uterine wall was the same from 22-April to 26-

April. Therefore, menstruation was unlikely to occur on these dates.

Try again...


The thickness of the uterine wall was the same from 27-April to 3-

May. Therefore, menstruation was unlikely to occur on these dates.

Try again...


Q: Which of the following best describes the significance of the increase in thickness of the uterine wall from 15 to 22 April?

A. To prepare for menstruation.

B. To prepare for fertilization.

C. To prepare for ovulation.

D. To prepare for embryo implantation.

10-Apr

14-Apr

18-Apr

22-Apr

26-Apr

30-Apr

4-May

8-May

Date



This is not the best description for the significance of the increase of

the uterine wall.

Try again...



the uterine wall.

Try again...



the uterine wall.

Try again...

Congratulation!!!



Self Learning ExerciseSelf Learning Exercise

Q: What will happen to a woman if she had her two oviducts tied and cut as a method of birth control?

A. No more ovulation will occur.

B. No more menstruation will occur.

C. No more fertilization will occur.

D. No more sex hormones can reach the uterus.


Ovulation occurs in ovaries. It is not affected if the oviducts are tied

and cut.

Try again...


Menstruation is the shedding of blood from uterus, and is controlled by hormones secreted by ovaries.

Therefore, it will still occur if the oviducts are tied and cut.

Try again...

Congratulation!!!




Sex hormones produced by the ovaries are transported by blood to the target organs such as uterus. Therefore, their transportation is

not affected if the oviducts are tied and cut.

Try again...


A. Neither ovulation nor menstruation occur.

B. Both ovulation and menstruation occur.

C. Only ovulation occurs.

D. Only menstruation occurs.

Q: If all oviducts of a woman are tied up and cut, which of the following is correct?


Vasectomy cannot stop ovulation and menstruation.



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correct

answer!

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Vasectomy cannot stop menstruation.


Vasectomy cannot stop ovulation.




A. antibodies

B. oxygen

C. sugars

D. red blood cells

Q: Which of the following in the maternal blood cannot pass through the placenta to the foetal blood?


Antibodies can pass through the placenta for the protection of the embryo from pathogens.



Oxygen can pass through the placenta for the embryo to

undergo respiration.


Sugar can pass through the placenta for the development of

the embryo.




You’ve

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correct

answer!

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Self-Learning Exercise A. Potato: production of stem tubers. B. Amoeba: binary fission. C. Bread mould: production of spores. D. Maize: formation of seeds.

Documents

wrong answer

uterine wall

correct answer

youre wrong

date of menstruation

beginning of menstruation

self learning exercise

selflearning exercise