unit 2 bs 2 organs of plants 1 HVTTO

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

B2 The organs of plants

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

       Book, notebook/laptop, pencil case

• Bag on the floor
• Read pgs. 94-97

Lessongoals

• You can describe the structure and function of roots, stems and leaves.
• You can name organ systems in plants and list their functions

Today

• Wheel of homework & recap
• Plants also have organs
• Time for homework
  
• End

Beans have seed leaves.
What do the seed leaves do during the growth of a young plant

1. They become leaves
2. They contain nutrients for growth and later become leaves
3. They drop on the ground
4. The contain nutrients for growth and later drop on the ground

Plants produce fruit. But where does this fruit come from?

1. Flowers change into fruit
2. Leaves change into fruit
3. Part of the stem changes into fruit
4. Roots change into fruit

The image shows a(n)

1. organism
2. organ
3. organ system
4. cell

What is the definition of:
Organ

Plant organs

Roots

• Root system = all roots together
• Taproot and lateral roots
• Root hairs > take up water/minerals

            -very sensitive

            -very small

Functions of roots

• Taking up water & minerals
• Anchoring the plant
• Storing food reserves

00:23-00:28

Taproot

00:44-00:49

Root hairs >

Which function is carried out by every (part of the) root of every plant?

1. Anchoring the plant
2. Taking up water/minerals
3. Storing food reserves
4. All of them are carried out by all roots

Herbaceous

• Sturdy because of water
• Wilts without water

Woody

• Sturdy because of wood

Stems

Functions of stems

1. Transport substances
2. Rigidity (sturdiness)

Parts of a leaf

blade

lateral vein

lamina

leaf stalk

main vein

What is the function of a leaf?

What you should do:

• Read pages 94-97 
• Do asgmt   pgs. 98-101

Done with the above?

• Work on the next basics

Zw = with whispering

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

What you should do:

• Read pages 94-97
  
• Do asgmt 1,2,4,6,8 pgs. 98-101

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

organen