What the difference is between sexual and asexual reproduction.
How certain organisms can reproduce asexually.
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Sexual reproduction
Sexual reproduction requires 2 sex cells, one male and one female. Because of the sex cells, there is always a difference between the parent and the child.
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Asexual reproduction
In asexual reproduction this works differently. You don't need sex cells, but normal cell division takes place. The DNA of parent and child is therefore the same. This often costs less effort/energy.
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Questions
You have 10 minutes to answer the following questions in pairs in your notebook, using your book:
1. What are tubers, bulbs and runners?
2. What kind of plants have tubers, bulbs or runners?
3. Why is this form of reproduction asexual?
timer
10:00
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Tubers
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Bulbs
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Runners
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Tissue cultivation
You can also cut plants, this is called tissue culture. Here you take a growing tip of a plant, cut it off and let it grow further.
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Other organisms
Other organisms can also reproduce asexually:
Fungi: Bud formation
Bacteria: Division
(Most) Animals can not reproduce asexually, a jellyfish can do something that comes close.
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Time to work!
You can get started with the assignments in paragraph 6.5. Including summary and plus assignment. This is the homework for the next lesson.
Lesduur is: 60 min
