Sexual Reproduction in Plants

Q.

Why is pollination important?

Q. Match column I with Column II and select the correct option from the given codes.
$\begin{array}{cc}ColumnI& ColumnII\\ A.Parthenocarpy& \left(i\right)Seedformationwithoutfertilisation\\ B.Polyembryony& \left(ii\right)Morethanoneembryoinsameseed\\ C.Apomixis& \left(iii\right)Seedlessfruitswithoutfertilsation\\ D.Somaticembryogenesis& \left(iv\right)Embryodevelopsfromasomaticcell\end{array}$

1. A-(iv), B-(ii), C-(iii), D-(i)
2. A-(iii), B-(ii), C-(i), D-(iv)
3. A-(i), B-(iv), C-(iii), D-(ii)
4. A-(ii), B-(iii), C-(i), D-(iv)

Q. In which of the following meiosis occurs?

1. Stem tip
2. Anther
3. Root tip
4. Pollengrain

Q. Which among the following is a polycarpic plant?

1. Wheat
2. Bamboo
3. Rice
4. Apple

Q. A plant that flowers only once in 12 years, found in hilly areas of Kerala, Karnataka and Tamil Nadu, is ____________.

1. water hyacinth
2. Strobilanthus kunthiana
3. Bambusa vulgaris
4. both b and c

Q. Flower of an angiosperm is a modified

1. Shoot
2. Leaf
3. All these
4. Root

Q. Match column I with Column II and select the correct option from the given codes.
$\begin{array}{cc}ColumnI& ColumnII\\ A.Parthenocarpy& \left(i\right)Seedformationwithoutfertilisation\\ B.Polyembryony& \left(ii\right)Morethanoneembryoinsameseed\\ C.Apomixis& \left(iii\right)Seedlessfruitswithoutfertilsation\\ D.Somaticembryogenesis& \left(iv\right)Embryodevelopsfromasomaticcell\end{array}$

1. A-(iv), B-(ii), C-(iii), D-(i)
2. A-(iii), B-(ii), C-(i), D-(iv)
3. A-(i), B-(iv), C-(iii), D-(ii)
4. A-(ii), B-(iii), C-(i), D-(iv)

Q.

Stalked sex organs are found in

1. First vascular plants

2. Algae

3. Amphibians of plant kingdom

4. Seaweeds

Q.

The mechanism which brings pollen grains on to the surface of stigma is pollination.

1. True

2. False

Q. The plants such as _____ (i) _____ and date palm are called _____(ii)______. The staminate and pistillate flowers in these plants are found in separate individuals.

1. i- coconut palm; ii- dioecious
2. i- coconut palm; ii- monoecious
3. i- papaya; ii- dioecious
4. i- papaya; ii- monoecious

Q.

Water is not required for the movement of male gametes in seed plants.

1. True

2. False

Q. In angiosperms, the site of sexual reproduction is

1. Fruit
2. Seed
3. Flower
4. Inflorescence

Q. Plants non-identical to mother plants can be obtained from :

1. Suckers
2. Rhizomes
3. Seeds
4. All of the above

Q. The plants such as _____ (i) _____ and date palm are called _____(ii)______. The staminate and pistillate flowers in these plants are found in separate individuals.

1. i- papaya; ii- dioecious
2. i- coconut palm; ii- monoecious
3. i- papaya; ii- monoecious
4. i- coconut palm; ii- dioecious