Download 5. Asexual Reproduction Outline

NAME _________________________________
HR___________
Asexual Reproduction Outline
Asexual Reproduction
 Results from the ____________ cell division (__________).
o One cell (___________) divides into _______ identical _____________ cells.
 The offspring are genetically ______________ to the parent cell.
 There is no fusing (____________) of cells in this type of reproduction.
 Unicellular and multicellular plants can reproduce both ___________ and __________.
 Common types of asexual reproduction include:
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Binary Fission
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Simplest type of ____________ reproduction.
________ daughter cells of equal
A ____-celled organism divides by _________ to form
size.
Both the ___________ and ___________ divide ______________.
The __________________ of the offspring are _______________ to that of the parent.
• Example organisms:
Budding
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A new organism develops as an ______________ of the parent.
The new organism, called the _________, is a tiny ___________ of the parent organism.
The _____________ divides __________ and the ____________ divides ___________.
The bud and the parent may _______________ from each other or may remain _______________ and
form a colony.
• Unicellular organism:
• Multicellular organism:
Sporulation
• Spores are specialized ____________ reproductive cells that contain a
____________ and a small amount of cytoplasm.
• Spores are surrounded by tough protective _________ that enable them to survive in
extreme ______ or ______, for long periods of time.
• When environmental conditions become ___________, each spore can develop into
a _______ organism.
•Formation of __________ occurs in
Regeneration
 The development of a new organism from a ________ of the ___________ organism.
o Example: In ____________, a single arm can develop into a new ____________.
 Starfish eat oysters and oyster fishermen once tried to kill starfish by cutting them
into pieces. Instead of dying, each starfish piece grew into a new starfish.
 Regeneration can also mean the ________________ of lost _______ parts.
 Regeneration of lost body ________ occurs mostly in __________________.
o Example: _______ are able to grow a new claw to replace one that has been lost.
o Other Examples:
Vegetative Propagation
 A form of _____________ _________ reproduction.
 A part of a _________– a root, stem, or leaf, grows into a ________ plant.
 The new plant is ___________ the same as the __________ plant.
 _____________ fruits and vegetables have to be reproduced by this method.
 Growers use this type of _______________ because it is _______, easy to use, and usually successful.
Natural Vegetative Propagation
Tubers – Underground __________ that contain stored __________.
 White potatoes are _____________. The “_______” of the potato are _________,
which can develop into new ___________.
Runners – _________ that grow out over the surface of the ____ from the existing
stem.
• At points along the __________, new __________ grow.
• Runners occur in _____________ and some ____________.
Rhizomes – Long, modified __________ that grow horizontally _______ the ______.
• New plants are produced at _________ along the _________.
• Lawn grasses, ferns, and irises reproduce by _____________.
Bulbs – Underground _________ specialized for __________ storage.
•The food is stored in the thick __________ of the bulb.
•Each bulb can develop into a new ________.
•___________ are bulbs.
Artificial Vegetative Propagation
 Occurs as the result of ____________ activities.
Cuttings – pieces of _______, ________, or ________ develop into new plants under proper conditions.
 Roses, sugar cane, and bananas are _______________ this way.
Grafting – A ___________ from one _______, called the scion, is attached to the main _________ of a
rooted _________, the stock.
• The scion keeps its own identity.
• Seedless ___________ and __________ are _______________ by grafting.