1.2 - growth and development

• Biologie
• Middelbare school
• vwo
• Leerjaar 1

Today's lesson

1. short repetition U1 P1 organisms

2. Start U1 paragraph 2 - Growth and development

3. get to work

1.2 - growth and development

Difference Growth and development

             Growth = (a part of) The organism gets bigger and heavier

Development = (a part of) The organism changes its structure

Growth

Growth = A organism gets heavier and larger.

Parts of a seed

A brown bean

Outside

• pore/micropyle: absorbing water
  
• Navel/hilum: attachment to pod
  
• Heart shaped bulge
  
• Seed coat: protection

Inside

• Plant embryo 
  (=kiem)
• Seed leaf: food
  (=zaadlob)

micropyle

navel

heart shaped bulge

seed coat

root

plant embryo

leaflet

seed leaf

Lifecycle of a plant

Development

Development = changes in structures of a organism.

Development lets the parts of a organism work better.