YR2-B5-LSN10

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

LESSON 10

TODAY:

• CHECK OUT YOUR FEEDBACK AND DISCUSS THIS

• WORKING ON ASSIGNMENTS
  
• DISCUSSING ASSIGNMENTS

Assignments on classroom:

FIRST 15 MINUTES IN SILENCE PLEASE:

- COMPLETE THE ASSIGNMENTS OF LESSON 9

- COMPLETE THE ASSIGNMENTS OF LESSON 10

Assignments on classroom:

"Booklet 5 lesson 10"

ANSWERS

Assignment 1 - R:

1. a) Look at the picture beside and match the numbers with the correct parts below. Use the table after 1.b)

stamen - anther - filament - sepal - petal - carpel - ovule - ovary - stigma - style - stem - nectary - receptacle

1.b) Match the names and numbers from question 1.a. with the functions given below.

 Put these words in the correct order and write an explanation of 10 words behind each word.

pollination - dispersal - growth - germination - fertilization.

pollination - dispersal - growth - germination - fertilization.

Germination - Process when a plant grows from a seed

Growth - The plant is growing larger and stronger.

Pollination - Transfer of pollen to another plant to allow fertilization

Fertilisation - When the pollen grain melts together with the ovule

Dispersal - Spreading seeds

Assignment 2 - T1:

3.a) There are 2 types of pollination, name and explain the differences between the 2 types.

1.

2.

Differences: 

3.b) There are 2 ways in which a plant can get the pollen from one plant another, name these two ways.

1.

2.

Differences: 

3.c) Find a picture of each type of plant you named in question b. 

Assignment 2 - T1:

2.a) There are 2 types of pollination, name and explain the differences between the 2 types.

1. Self pollination

2. Cross pollination

Differences: cross pollination happens when two different plants pollinate each other, with self-pollination the plant pollinates itself, either the same flower or a different flower on the same plant.

Assignment 2 - T1:

2.b) There are 2 ways in which a plant can get the pollen from one plant another, name these two ways.

1. Wind pollination

2. Insect pollination

Differences: The difference is on how the pollen is moved from flower to flower. If the plant does it by wind, it has long stamens and carpels and not very bright colours because it does not need to attract insects. If a plant does insect pollination it has bright colours and it smells nice, it also produces nectar at the base of the flower, this forces insects to crawl into the flower and get covered with pollen which they then bring to the next flower. 

4. Explain the differences between pollination and dispersal.

5. Some types of berries need to be eaten and pooped out by birds before the seeds can germinate. What type of dispersal is this? Explain your answer.

4. Explain the differences between pollination and dispersal.

Pollination moves the pollen from flower to flower so that fertilisation can occur, once fertilization has happened the plant tries to spread the seeds out as far as possible to give them the best chance of survival, this is called dispersal. 

5.Some types of berries need to be eaten and pooped out by birds before the seeds can germinate. What type of dispersal is this? Explain your answer.

This is called animal dispersal, the trees have evolved to create berries so the animals are attracted to eating these, then the seeds pass through the birds undigested (thick seed coat to protect it from the stomach acid) and get pooped out far away from the parent plant. Sometimes the seed coats are so thick that they actually need the digestion process to break it down so that the seed can actually germinate.

Assignment 3 - T2:

6.a) When a farmer plants kiwi’s should he be careful to plant an equal amount of male and female trees to get fruits?

6.b) What type of flowers will these trees have, perfect or imperfect? Explain your answer.

6.c) Will all trees have fruits? Explain your answer.

Assignment 3 - T2:

6.a) When a farmer plants kiwi’s should he be careful to plant an equal amount of male and female trees to get fruits?

Not really, one male tree can fertilise many females, he just needs to make sure he has both male and female plants.

6.b) What type of flowers will these trees have, perfect or imperfect? Explain your answer.

Imperfect, because they only have either male or female parts.

6.c) Will all trees have fruits? Explain your answer.

No, only the female trees have the ovary which later becomes a fruit.

Assignment 4 - I:

10. Create a mindmap of this chapter, upload a screenshot of that mindmap here please.

HW FOR LESSON 11

- let me know if you are doing the glossary quiz and or the summary

- prepare for a review lesson, read all notes and assignments. 

- be prepared to ask me questions!