5.1 ( B) looking at plants

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

Are you ready?

- Put your phone in the 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?

 

Schedule

Welcome!

Quiz

Instruction

Work independently

End of class

This chapter

Small test: report on research on plants (1x)

Big test: test in the test week (3x)

You may ask the Dutch translation but you don't have to study them!

Learning objectives

• You can name the parts of a plant and their function.

• You can name the parts of a plant cell and name the most important functions.

• You can explain how plants stay upright.

• You can describe how water is transported in the plant.

• You can explain how trees lose their leaves and why.

• You can explain why flowers and fruits get their colour.

15 seconden per vraag!

2 drag and drop + 3 multiple choice of 30 seconds

sublateral veins

midrib

mesophyll

petiole

blade

Which parts of the plant cell are indicated here?

Cell wall

Cell nucleus

Chloroplast

Cytoplasm

Vacuole

Is this a herbaceous or woody plant?

1. Herbaceous
2. Woody

Is this a herbaceous or woody plant?

1. Herbaceous
2. Woody

Is this a herbaceous or woody plant?

1. Herbaceous
2. Woody

Watertransport

Root hairs = small hairs on the roots which the plant uses to absorb water and minerals.

Vessels = thin tubes through which water and dissolved substances are transported (located in vascular bundles).

• Xylem (pronounced: zai-luhm):   roots → leafs
• Phloem (pronounced:flow -em) : leafs → roots and flowers

Stomata

Stomata = small openings in the leaf through which substances can pass.

By absorbing water via the roots and evaporating water via the leaves the water flow in the xylem vessels keeps going.

Why do trees shed their leaves?

Evaporation takes place through leaves.

Roots don't work well in the cold.

Abscission layer = layer between tree and petiole, so that less water and minerals reach the leaves in autumn.

Layer of cork = layer on the place where the leaf has fallen (against water loss and pathogens).

Leaf scars = Place where the leaf used to be attached to the branch.

Plastids

Dye granules = granules with dye in a plant cell.

• Green (chloroplasts = for making nutrients)
• Red, yellow or orange (chromoplasts)
• Colorless (starch granules = starch is stored here)

What?	Make 5.1: assignments 13-18
How?	In your workbook (or computer). Use the information from your textbook.
Help?	You may gently consult with your neighbor. Raise your hand if the two of you can't figure it out.
Time?	10 minutes
Finished?	Make 23-25 and then make a diagram of the parts of the plant cell like the one on the next slide (but in English!).
Product	You have practiced 5.1.

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