5th Grade Chapter 4 Lesson 3 How do Plants Reproduce?

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pistil

female part of a flower

stamen

male part of a flower

pollen

grainy, often yellow powder made at the top of each stamen

pollination

moving pollen from the stamen to the pistil

egg

cells found in the bottom of the pistil

petals

colorful, outer area of the flower

sepals

small modified leaves that cover a flower bud

imperfect flower

flower that lacks either stamens or pistils

perfect flower

flower with both stamens and pistils

composite flower

flower that is made of many, tiny flowers

DNA

contains all the information for making plant parts

sexual reproduction

passing of DNA from 2 parents to their offspring

asexual reproduction

reproduce from 1 parent without egg and sperm cells-offspring have same genes as parent

ways to move pollen

wind, water, insects, bats & birds

egg cell

female sex cell

sperm cell

male sex cell

fertilization

joining of sperm and egg cells

embryo

tiny new plant in a seed

seed coat

covering that protects the embryo & guards the endosperm

endosperm

stored food in a seed

cotyledons

seed leaves

monocot

plant that has seeds with 1 cotyledon

dicot

plant that has seeds with 2 cotyledon

characteristics of monocots

1 area of stored food, leaves have parallel veins, fibrous roots

characteristics of dicots

2 areas of stored food, leaves with branching veins, taproots

spore

single plant cell that can develop into a new plant

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