1: Revision Activity
Let Us refresh our memories before we proceed
Instruction: Click here to label flowers seen, then Answer these questions seen below.
1. The female reproductive part of the flower is called the ___________________. It is made up of three parts the stigma, ____________ and the
______________.
2. The male reproductive part of the flower is the stamen. It comprises the _________________ and the _________________.
3. What are the male reproductive gametes and where are they located? ___________________________________________
4. Where are the female gametes located? ______________________________
2: Agents of Pollination and its Importance
Now that we remember the parts of the flower lets move on to the process of Pollination.
Pollination is the process where pollen grains are transferred from the the male part of the flower particularly the anther to the female part of the flower namely the stigma.
Instruction: Watch video and answer the questions below.
1. List the helpers / agents of pollination.
2. From video can you tell what process occurs after pollination?
3. Can you therefore tell why pollination is important
3: Types of pollination
Instruction: Click on video view and then complete the cloze passage seen below.
There are two types of pollination ______________________________________ and ____________________________________. ________________________ occurs when pollen from the anthers of one flower lands on the stigma of the same flower, or another flower on the same plant. When pollen from the anthers of one flower land on the stigma of a flower on another plant of the same species, ____________________ pollination occurs.
4. Exam Type Question
1. Joe is a student in Grade 7 at your school and his father is a farmer. Joe�s father asked him to plant some pumpkin seeds in the
field and to look after them until they produced fruit(pumpkins). Every morning and evening Joe watered the seeds. He watched
then develop into young plants and then into long pumpkin vines, which began to produce bright yellow flowers with very large
petals. However Joe would pick the stigma from most of the flowers as soon as they open.
i. Which method of pollination would you expect the pumpkin seeds to exhibit? Give one reason for your answer.
ii. What effect will Joe�s habit of breaking off the stigma of the pumpkin flower have? Give one reason for your answer.
