ZOOLOGY BOTANY CHEMISTRY

Match the organisms given in column 'A' with the vegetative propagules given in column 'B'. Column A (i) Bryophyllum (ii) Agave (iii) Potato (iv) Water hyacinth Column B (a) offset (b) eyes (c) Leaf buds (d) Bulbils (SHORT ANSWER QUESTIONS) (2MARK) (NCERT EXAMPLER)

Which of the followings are monoecious and dioecious organisms? (a) Earthworm..... (b) Chara............, (c) Marchantia....... (d) Cockroach......... (SHORT ANSWER QUESTIONS) (2MARK) (NCERT EXAMPLER)

Rearrange the following events of sexual reproduction in the sequence in which they occur in a flowering plant, embryogenesis, fertilisation, gametogenesis, pollination. (SHORT ANSWER QUESTIONS) (2MARK) (NCERT EXAMPLER)

Although potato tuber is an underground part, it is considered as a stem. (SHORT ANSWER QUESTIONS) (2MARK) (NCERT EXAMPLER)

Fill in the blanks : A. The development of ...... from the zygote is called ... B. Embryonal protection and care are better in ...... animals. C. ...... animals lay eggs. D. In flowering plants, after ......, ovary develops into fruit and ......matures into seeds. (SHORT ANSWER QUESTIONS) (2MARK)

Differentiate between the following: (a) Zoospore and zygote (6) Syngamy and fertilization. (SHORT ANSWER QUESTIONS) (2MARK)

What is Fission? Name the types of fission. (SHORT ANSWER QUESTIONS) (2MARK)

Coconut palm is monoecious while date palm is dioecious. Why are they called so? (SHORT ANSWER QUESTIONS) (2MARK) (CBSE 2008)

Name at least three changes seen in human females that are indicative of reproductive maturity. (SHORT ANSWER QUESTIONS) (2MARK)

Name at least three changes seen in human males that are indicative of reproductive maturity. (SHORT ANSWER QUESTIONS) (2MARK)

Differentiate between parthenocarpy and parthenogenesis. (SHORT ANSWER QUESTIONS) (2MARK)

Give the significance of asexual reproduction? (SHORT ANSWER QUESTIONS)(2MARK)

How do roots take part in vegetative propagation? (SHORT ANSWER QUESTIONS) (2MARK)

What are spores? Name at least three types of spores. (SHORT ANSWER QUESTIONS) (2MARK)

What is the basic difference between binary fission and budding? (SHORT ANSWER QUESTIONS) (2MARK)

What is sexual reproduction? (SHORT ANSWER QUESTIONS) (2MARK)

What is asexual reproduction? (SHORT ANSWER QUESTIONS) (2MARK)

Name any two means of vegetative propagation in pineapple plant? (SHORT ANSWER QUESTIONS) (1MARK)

Name the phenomenon and one bird where the female gamete directly develops into a new organism. (SHORT ANSWER QUESTIONS) (1MARK) (CBSE 2013) (OD SET-III)

Name an alga that reproduces asexually through zoospores. Why are these reproductive unit so called? (SHORT ANSWER QUESTIONS) (1MARK) (CBSE 2013) (OD SET-II)

Name the organism where cell division in itself is a mode of reproduction. (SHORT ANSWER QUESTIONS) (1MARK) (CBSE 2013) (OD SET-I)

Name the phase all organisms have to pass through before they can reproduce sexually. (SHORT ANSWER QUESTIONS) (1MARK) (CBSE 2011)

Mention a characteristic feature and a function of zoospores in some algae. (SHORT ANSWER QUESTIONS) (1MARK) (CBSE 2010) (OD SET-II)

Mention the site where Syngamy occurs in amphibians and reptiles. (SHORT ANSWER QUESTIONS) (1MARK) (CBSE 2010) (OD Set-I)

Name the last phase of life span that ultimately leads to death. Give the important changes that occur in the body during this phase. (SHORT ANSWER QUESTIONS) (1MARK)

What are the main causative factors which regulate the reproductive processes and related behavioral expressions in organisms? (SHORT ANSWER QUESTIONS) (1MARK)

What is the major difference you observe in the offsprings produced by asexual reproduction and in the progeny produced by sexual reproduction? (SHORT ANSWER QUESTIONS) (1MARK) (CBSE 2008)

What is vegetative propagules? (SHORT ANSWER QUESTIONS) (1MARK)

Select the organisms which reproduce by binary fission : Amoeba, Hydra, Penicillium, Paramecium, Sponge. (SHORT ANSWER QUESTIONS) (1MARK)

What is clone? (SHORT ANSWER QUESTIONS) (1MARK)

What are secondary sexual characters? (SHORT ANSWER QUESTIONS) (1MARK)

Fill in the blanks : a) Fusion of two.... results in the formation of zygote. (b) Development of.... from the.... is called embryogenesis. (c).... animals lay eggs. (d) After fertilization,.... are transformed into seeds. (SHORT ANSWER QUESTIONS) (1MARK)

Name the artificial means of vegetative reproduction. (SHORT ANSWER QUESTIONS) (1MARK)

How many kindes of natural vegetative reproduction take place in flowering plants? (SHORT ANSWER QUESTIONS) (1MARK)

Name a multicellular invertebrate which reproduces asexually by budding. (SHORT ANSWER QUESTIONS) (1MARK)

Name a unicellular fungi which reproduces asexually by budding. (SHORT ANSWER QUESTIONS) (1MARK)

Give two examples which reproduce asexually by binary fission. (SHORT ANSWER QUESTIONS) (1MARK)

What is life span? (SHORT ANSWER QUESTIONS) (1MARK)

What is Reproduction? (SHORT ANSWER QUESTIONS) (1MARK)

Why offspring of oviparous animals are at a greator risk as compared to offspring of viviparous animals? (NCERT)

Examine few flowers of any cucurbit plant and try to identify the staminate and pistillate flowers. Do You know any other plant that bears unisexual flowers? (NCERT)

What is bisexual flower? Collect five bisexual flowers from your neighborhood and with the help of your teacher find out their common and Scientific names. (NCERT)

Describe the post fertilization changes in a flower flower. (NCERT)

Differentiate between gametogenesis and embryogenesis? (NCERT)

Differentiate between a zoospore and a zygote. (NCERT)

Define external fertilization. Mention its disadvantages? (NCERT)

Identify each part and write and write whether it is haploid (n) or diploid (2n) in flowering plant. a) Ovary 2) Anther 3) Egg 4) Pollen 5) male gamete 6) zygote (NCERT)

What is vegetative propagation? Give two suitable examples examples. (NCERT)

Define : (i) Juvenile phase (ii) reproductive phase (iii) senescent phase? (NCERT)

Why is offspring formed by Asexual Reproduction referred to as clone? (NCERT)

Explain why meiosis and gametogenesis are always interlinked? (NCERT)

Higher organisms have restored to sexual reproduction in spite of its complexity why? (NCERT)

How does the progeny formed from asexual reproduction differ from those formed by sexual reproduction? (NCERT)

Offspring formed due to sexual reproduction have better chances of Survival, why? Is this statement always true? (NCERT)

Which is better mode of reproduction sexual or Asexual why? (NCERT)

Why is reproduction essential for organisms? (NCERT)