U6 B4 1HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 1

B4 Fruits & seeds

• Take off your jacket
  
• Put your things on your desk
  

       Book/Laptop
       Notebook

• Bag on the floor
  
• Read pages 177-178

Lessongoals

• You can describe the events in the ovary after fertilization
• You can recognize parts of fruit, and explain which parts of the flower they were

Homework U6 B4

Asgmt 1-7, 3c

OR challenge

Asgmt 4-9 

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

What is the name of the event when the male and female sex cells become one?

1. Growth
2. Pollination
3. Fertilization
4. Fused

What does a fertilized egg cell turn in to?

1. A plant embryo
2. An ovule
3. A pollen tube
4. A seed

What happens when egg cells in an ovule aren't fertilized?

1. The egg cell becomes a plant embryo
2. The egg cell doesn't become a seed
3. The ovule becomes a seed
4. The ovule doesn't become a seed

What is found in the nucleus of a fertilized egg cell?

1. male chromosomes
2. female chromosomes
3. No chromosomes.
4. Both male and female chromosomes

Put the events in the right order

1

2

3

4

5

6

7

8

ovary becomes fruit

egg cell becomes plant embryo

ovule becomes seed

pollination

pollen is taken to a flower

fertilization

pollen makes pollen tube

pollen is made

After fertilization

• Fertilized egg cell become a plant embryo
• Ovules containing fertilized egg cells become seeds
• Other ovules shrivel away
• Ovary becomes a fruit

The plant embryo is a tiny baby plant inside a seed

This ovule hasn't been fertilized (yet)

this ovule will soon be fertilized

pollen grain

stigma

pollen tube

style

egg cell/ova

nucleus

nucleus of pollen grain

02:00-02:10

1 seed = 1 fruit

The image shows a cross section of a grape.
How many fertilizations have happened in the flower of this grape? (number)

The image shows a cross section of a grape.
How many pollinations have at least happened in the flower of this grape? (number)

Fruit with pulp

Fruit with pod

Pulp develops from the ovary or other parts of the flower. 

It is the nutritious part of the fruit

The ovary turns in to a long container like fruit, pod. This contains the seeds

What part contains nutrients for the plant embryo?

1. The pollen grain
2. The flower stalk
3. The pulp
4. The seed

Seeds can not use pulp as nutrients.
What is the use of pulp in fruits?

For which of these fruits/vegetables are you (only) eating the seeds?

1. Strawberry
2. Bean
3. Banana
4. Pineapple

1st choice: + OR Cheat sheet +1 cm2 OR Wheel

2nd and 3rd choice: Cheat sheet +1 cm2 OR Wheel

4th en 5th: Wheel 

TTO

What you should do: U6 B4

• Pages 183-189 
• Asgmt  1-7, 3c

OR challenge

• Asgmt 4-9 

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do: U6 B4

• Pages 183-189
• Asgmt 1-7, 3c

OR challenge

• Asgmt 4-9 

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk

Tidy Duty

Today these people are on tidy duty

• Desks: empty and straight
• Chairs:  underneath the desks
• Floor: no rubbish