5.4 Plant reproduction (part 1)

• Biologie
• Middelbare school
• havo
• Leerjaar 1

Are you ready?

- Put your phone in your locker

- Coats are on the coat rack or in your locker

- Bags are off the table

- Take off your hat or hoodie

- Books and laptops are on the table

- Did you do your homework?

 

5.4 Plant reproduction

Learning objectives

You will learn how reproduction in plants work, how seeds are distributed, and what happens during the lifetime of a plant.

15 seconden per vraag!

_______________

_______________

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Cytoplasm

Chloroplast

Cell wall

What substances does the plant absorb through the root hairs?

1. water
2. water and minerals
3. minerals

Which plant part absorbs carbon dioxide (CO2) from the air?

1. Stem
2. Root
3. Flower
4. Stomata

What does a bee eat from a flower?

1. Nectar
2. Pollen
3. Fruits
4. Seeds

Plant parts

1. Receptacle : the other parts of the flower are attached to this.

2. Sepals: green leaves that protect the flower from cold, dehydration, and damage when the flower is still covered in its bud.

3. Nectary: glands, producing nectar. 
Nectar = sweet liquid.

Plant parts

Petals = the coloured leaves for attracting insects.

Pistil = used for the reproduction.

Stamens = also for the reproduction.

Voortplantingsorganen

Stamen

• Anter = produces a large amount of grains/pollen (male gametes). 
• Filament 

Pistil

• Stigma
• Style 
• Ovary = contaiins ovules that each contain an egg cell (female gametes). 

How does pollen reach te pistil? 

Pollination = transfer of pollen from the stamens to the pistil

• Cross- pollination = when the pollen of one flower is transferred to the pistil of the flower of another plant

• Self-pollination = when the pollen is transferred to the flowers of the same plant

Cross-pollination, self-pollination or no pollination?

Insect-pollinated flowers

Outstanding and fragrant flowers.

Wind-pollinated flowers

Less striking small green flowers withouw scent. Stamens and stigma hang out far from the flower.

Is this an insect-pollinated flower?

1. Yes
2. No

Is this an insect-pollinated flower?

1. Yes
2. No

Is this an insect-pollinated flower or a wind-pollinated flower?

1. wind-pollinated flower
2. insect-pollinated flower
3. Both

What?	Make 5.4: assignments 3 to 7
How?	In your workbook (or computer). Use the information from your textbook.
Help?	You may gently consult with your neighbor or listen to music. Raise your hand if the two of you can't figure it out.
Time?	10 minutes
Finished?	Make a summary about 5.1 to 5.3
Product	You have practiced 5.3.

Let's discuss the lesson!

Don't pack your bags yet!

What did you learn today?

When de bell rings:

- Pull up your chairs

- Don't forget your phone

Wat is het leukste wat je
deze les leerde? :)
(je moet iets noemen:P )