This is Online Practice Q_ANS on CHAPTER => 8 (How do Organisms Reproduce )for preparation of CBSE BOARD Examination, NTSE etc.
VERY SHORT ANSWER TYPE QUESTIONS (1 Mark)
1. Name the two types of reproduction.
2. What type of reproduction takes place in plasmodium ?
3. Define vegetative propagation.
4. Where is DNA present in a cell ?
5. Name the glands associated with male reproductive system.
6. What is menstruation ?
7. Name two contraceptive methods.
8. Where are the reproductive parts located in a plant ?
SHORT ANSWER TYPE QUESTIONS (2 Marks)
1. Write two important functions of testosterone.
2. What is placenta ? Also write its functions.
3. Why do we see different types of organisms around us ?
4. What is the importance of variation ?
5. Why is vegetative propagation practiced for growing some types of plants ?
6. Write names of male and female sex hormones.
7. Mention the parts of a flower.
8. Differentiate between bisexual and unisexual flowers.
SHORT ANSWER TYPE QUESTIONS (3 Marks)
1. What is tissue culture ?
2. Explain the process of fertilisation in flowering plants.
3. Name the different constituents of semen.
4. Draw a well-labelled diagram of male reproductive system.
5. What is pre-natal sex determination ? Why is it banned ?
6. Draw a labelled diagram of the longitudinal section of a flower.
LONG ANSWER TYPE QUESTIONS (5 Marks)
1. What are the different modes of asexual reproduction ?
2. Draw a labelled diagram of female reproductive system and write the function
of its different parts.
3. What is contraception ? Give different methods of contraception.
4. What happens in human female :
(a) when egg is fertilised ?
(b) when egg is not fertilised ?
5. Trace and explain the steps involved in the formation of seed.
VALUE BASED QUESTIONS
A pregnant woman, who is a mother of one daughter, requests the doctor of
an ultrasound clinic to test and determine the sex of the baby in her womb.
The doctor, very politely, refused and explained the legal and ethical point of
view of the situation. On the basis of arguments and counseling, the doctor
prepared the woman to happily accept the baby.
(a) Why is pre-natal sex determination ethically wrong ?
(b) Had you been in place of the doctor, what argument you would have
placed to counsel the mother ?
(c) State the values exhibited by the doctor.
Hints to Long Answer Type Questions
1. Methods of asexual reproduction :
(a) Fission
(b) Fragmentation
(c) Regeneration
(d) Budding
(e) Vegetative propagation
(f) Spore formation
2. Labelled diagram of female reproductive system.
Functions :
Ovary : Production of eggs.
Oviduct : Site for fertilization.
Uterus : Place of development of embryo.
3. Contraception : Barrier for fertilisation.
• Physical barrier
• Chemical methods
• Surgical methods
• Intrautrine contraceptive device (IUCD)
4. (a) (i) Zygote is formed → Implanted in uterus
(ii) Onset of pregnanacy
(b) Menstruation
5. Labelled diagram of germination of pollen grain on stigma of flower.
Share this
0 Comment to "Online Practice Q_ANS on CHAPTER => 8 (How do Organisms Reproduce )"
Post a Comment
Comment HERE, to know more about this topic.