Let's grow & Asexual reproduction

• Biologie
• Middelbare school
• vmbo b, vwo
• Leerjaar 1

Welcome everyone!

Today:

Discussing paragraph 6.9 and 6.10 (TB. page 172)

Making homework exercises 

What are we going to learn today?

Today we will learn:

How a new plant originates out of a seed.

What types of plants we can distinguish based on their seeds.

What asexual and artificial reproduction is. 

Seeds

Seeds are found in the fruit of the plant. When they germinate, the new plant grows out of the seed. It needs a lot of water and the right temperature to make that happen. 

Seeds

Seeds are build out of a some parts. The outside of the seed is called a seed coat. To geminate, a seed needs a lot of food, which it fortunately already has. That food is stored in the cotyledon. 

There is also a tiny plant already in the seed, which is called the embryo plant. 

Bean

Seeds

We can make two groups of plants based on how the seed is build. Some seeds only have one cotyledon (monocots), and some plants have two (dicots). The plants within those groups also look a lot different. 

Monocots vs. dicots

First, study figure 6.63 on page 173. Close your book afterwards. In duo's, you will take turn with drawing and guessing. The person who is drawing, has 20 seconds to draw a characteristic for either a monocot or a dicot. After this, the other person has to guess whether a monocot or dicot is drawn, and explain why they think that. After this you will change the roles. 

Asexual reproduction 

Reproducing using flowers is a form of sexual reproduction. You need two sex cells: the egg cell and the pollen. Some plants can also reproduce by just growing, or storing certain parts of the plant. This is called asexual reproduction. 

Bulbs

Tubers 

Rhizomes

Runners

Artificial reproduction: cuttings

Grafts

Get to work!

The homework for next lesson are the exercises of paragraph 6.9 & 6.10.