A sexual reproduction and binary fission
BUDDING and SPORULATION
regeneration and vegetative propagation
important terms
fill-in the blank
100
What is asexual reproduction?
One cell, called the parent cell, divides into two identical daughter cells. The offspring are genetically identical to the parent cell. There is no fusing (joining) of cells.
100
Budding results in equal division of
the _____(1)______ and unequal division of the _____(2)______.
1. nucleus
2. cytoplasm
100
What is regeneration?
The development of a new organism from a part of the parent organism.
100
stock
the part of a graft that is rooted in the ground.
100
Commercial growers use ______ rather than seeds when they want to be sure the offspring are identical to the parent.
vegetative propagation
200
Asexual reproduction is more common in _____(1)_______ animals than in ______(2)______
animals.
1. invertebrate
2. vertebrate
200
A one celled organism that reproduces by budding is ____________.
yeast (others)
200
Name two animals that reproduce by regeneration.
Starfish and planaria
200
scion
the part of a graft that is attached to the main body.
200
The ____ or ____ can reproduce by regeneration.
starfish or planaria
300
Name three types of asexual reproduction.
extra 300 pts. if you can name all five
1. binary fission
2. budding
3. sporulation
4. regeneration
5. vegetative propagation
300
__________ is a multicellular organism that reproduces by budding.
hydra (others)
300
What is vegetative propagation?
A form of asexual plant reproduction. In vegetative propagation, a part of a plant, like a root, stem or leaf, grows into a new plant. The new plant is exactly the same as the parent plant.
300
bulbs
(and not the kind you screw into a light fixture)
A type of vegetative propagation in which an underground stem, that is specialized for food storage, develops into a new plant.
an onion for example
300
Reproduction involving one parent cell is called _________ reproduction.
asexual
400
Describe binary fission.
The simplest type of asexual reproduction. During binary fission a one celled organism divides by mitosis to form two daughter cells of equal size. Both the nucleus and the cytoplasm divide equally. The chromosomes of the offspring are identical to that of the parent.
400
What is a spore
Spores are specialized asexual reproductive cells that contain a nucleus and a small amount of cytoplasm.
400
Name three plants that reproduce by vegetative propagation.
extra 500 pts. if you can name all six
1. runners
2. bulbs
3. tubers
4. rhizomes
5. cuttings
6. grafting
400
runners
(and not someone who runs a marathon)
A type of vegetative propagation in which stems, called runners, grow out over the surface of the soil from the existing stem, where new plants grow.
400
strawberries reproduce asexually by _________
runners
500
Name two organisms that divide by binary fission.
extra 200 pts. if you can name all three
1. amebas
2. paramecia
3. bacteria
500
State one advantage of spore formation.
Spores are surrounded by tough protective coats that enable them to survive unfavorable conditions.
500
In one type of propagation, you can sometimes cut a piece of a plant and put it into water to grow roots. What would this be called?
cuttings
500
rhizomes
A type of vegetative propagation in which long modified stems, that grow horizontally under the soil, produce plants a nodes along the stem. example: grass.
500
The eyes on potatoes are actually___________
buds or little plants