1) Abiotic agents
2) Anemophily
3) Antipodal cells
4) Artificial pollination
5) Biotic agents
6) Cheiropteriphily
7) Cleistogamy
8) Dichogamy
9) Egg (or female gamete)
10) Embryo
11) Embryo sac
12) Endosperm
13) Entomophily
14) Exine
15) Fertilization
16) Funicle
17) Germ pore
18) Heterostyly
19) Herkogamy
20) Homogamy
21) Hydrophily
22) Integument
23) Intune
24) Malacophily
25) Micropyle
26) Nectar
27) Nectar
28) Nectar guide
29) Ovule
30) Polar nuclei
31) Pollination
32) Protoandry
33) Protogyny
34) Seed
35) Synergids
36) Zygote (or oospore)
37) Double fertilization
B) 1) Define pollination. How does it differ from fertilization?
2) Give two advantages and disadvantages of self pollination.
3) Give two advantages and disadvantages of cross pollination.
4) State 4 difference between insect and wind pollinated flowers.
5) Give two examples each of wind and insect pollinated flowers.
6) Normally sepals fall after fertilization. Name two fruits in which the sepals persist.
7) Mention whether the following statements are True or False:
a) Fertilization is fusion of anther and stigma.
b) Cross pollination always occurs in unisexual flower.
c) The generative nucleus in the pollen grains develops into two male gametes.
d) In maize the pollination is brought about by insects.
e) Anemophilous flowers are large and bright.
f) Vallisaneria flowers are pollinating by wind.
8) Name the floral parts which develop into following structures :
a) seed.
b) pericarp.
c) seed coat.
d) fruit.
9) What is the function of pollen tube? Trace its path from stigma to the female gametes by means of diagram.
10) Explain the following terms:
a) Anemophilous flower
b) Double fertilization
c) Glametes
d) Oospore
e) Nectar guides
11) Difference between the following:
a) Pretendory and Protogyny
b) Self pollination & cross pollination.
c) Fruit & Seed.
d) Tube nucleus and the Generative nucleus
e) Ovule & Seed.
12) Draw a labelled diagram of ovule as seen in a section.
13) The diagram alongside shows a section through a flower at two stages of development.
a) Write down two features in the diagram to show that the flower is insect pollinated.
b) What information shown in the diagrams would suggest that cross pollination takes place in the flower?
14) Fill in the blanks with appropriate word given in the brackets.
a) Cross pollination takes place in all ____plants.(monoecious /dioecious)
b) Bougainville flowers are pollinated by____. (wind/insects /water)
c) double fertilization is common in ___. (Gynosperms/ angiosperms)
d) Salvia is a _____ flower. (Entomophilous/ornithophilous/hydrophilous)
e) After fertilization, the _____ becomes the fruit and the ___ becomes the seed. (Ovule/ovary/integument)
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