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Science Plant Reproduction notes
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17
Science
7th Grade
02/13/2012

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Term
Can plants reproduce both sexually and asexually?
Definition
yes
Term
From asexual reproduction a new plant can be grown from what?
Definition
a leaf, stem, or root
Term
When does a sperm cell fertilizes an egg cell to form a zygote?
Definition
in sexual reproduction
Term
Some plants have both male and female reproductive organs: how do these plants reproduce?
Definition
by themselves or with sex cells from other plants of the same type
Term
What grows to produce sex cells?
Definition
spores in seedless plants
Term
What are seedless?
Definition
all nonvascular and some vascular plants
Term
What kind of life cycle do plants have?
Definition
a 2 stage one
Term
Wat begins when sex cells produce haploid cells called spores
Definition
gametophyte
Term
What begins with fertilization?
Definition
sporophyte
Term
What has a life cycle that illustrates typical sexual reproduction in nonvascular seedless plants
Definition
moss plants
Term
What are most vascular seedless plants?
Definition
ferns
Term
What do Fern sporophyte plants have?
Definition
frods which grow slowly from an underground stem called a rhizome
Term
What is usually on the underside of frods?
Definition
sori, where fern spores are produced
Term
How does a phyte plant called a prothallus grow?
Definition
fern spore that lands in faavorable environment
Term
Where do sex cells form?
Definition
in the prothallus
Term
When fertilization occurs, the zygote starts what?
Definition
the sporophytes tage
Term
What may ferns do when rhizomes form new branches and are separated from the main plant?
Definition
reproduce asexually
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