Transcript 1C6_Plant Reproduction

1C6_Plant Reproduction
Asexual Reproduction
OB51
distinguish between asexual and sexual
reproduction in plants and describe a way in
which a named plant can reproduce
asexually
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OB51
distinguish between asexual and sexual reproduction in plants and describe a way
in which a named plant can reproduce asexually
Sexual reproduction
Asexual reproduction
• involves two parent plants
• a cell from each combining to
produce a seed which becomes
a new plant
• this plant has features of both
parents
e.g. apple, dandelions
• involves only one parent
• cells from this parent divide
and a new plant grows from
these cells
• this plant is identical to the
parent
e.g. strawberries, potatoes
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The following slides show
asexual reproduction…
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Day 1
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Day 6
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Day 13
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Day 20
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Day 29
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Day 42
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Day 50
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Day 50
Some of the new
growths are beginning
to turn green – these
will become the shoots
of the new plant
Some of the new
growths are beginning
to turn downwards –
these will become the
roots of the new plant
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Describe what has happened to
this potato over the 50 days
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Other plants that
reproduce asexually….
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Spider plant
http://www.amherstgreenhouses.com/photo/tropical/spiderPlant.jpg
1. Parent plant
2. Cells divide to
grow a new stem
3. New plant grows
at end of new stem
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Strawberry
http://www.bbc.co.uk/schools/gcsebitesize/img/bistrawberries.gif
3. New plant grows at end of stem
1. Parent plant
2. Cells divide to grow new stem
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Can you think of any others?
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1C6_Plant Reproduction
Asexual Reproduction
OB51
distinguish between asexual and sexual
reproduction in plants and describe a way in
which a named plant can reproduce
asexually
www.juniorscience.ie