10. pollination

Question 1

pollination

Answer 1

transfer of pollen from stamens to stigma

Question 2

transport of pollen

Answer 2

animals -> humming-birds, bats, honey possums, insects
wind

Question 3

flowers division based on way of transport of pollen

Answer 3

entomophilous f.
anemophilous f.

Question 4

entomophilous f.

Answer 4

1. conspicuous flowers with large birghtly colored petals
2. scented
3. nectaries
4. low pollen production
5. stigmas relatively small & sticky
6. large & often spiny pollen
7. plants often single o r in small groups

Question 5

anemophilous f.

Answer 5

1. small drab petals or no petals
2. not scented
3. nectaries absent
4. high pollen production
5. stigmas large, feathery, hanging outside
6. pollen small & usually smooth
7. in dense groups, covering large area

Question 6

self-pollination

Answer 6

transfer of pollen from the stamens to the stigma in the same flowers

Question 7

cross-pollination

Answer 7

transfer of pollen from one to stigma of a different flower
genetic variation - zygote has a new mixture of chromosomes from the 2 parents

Question 8

mechanisms favoring cross-pollination

Answer 8

being dioecious - seperate male & female plants
being monoecious - male and female flowers on one plants
anthers and stigmas maturing at different time
anthers 1. -> protoandry
stigmas 1. -> protogyny

Question 9

self-incompatibility mechanism

Answer 9

pollen t ube does not develop unless it has a different genetic composition from that of the stigma

Question 10

orchids -

Answer 10

range of enticemennts that provide no obvious rewardds for their pollinators
mimic appearance of female bee
releasing scent ~ female pheromones