flower structures and reproduction

38 terms by russ6258 Teacher

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Seed develops in a cone (evergreen)

Gymnosperm

Seed produced in flowers and subsequent fruits

Angiosperm

Contains monoploid sperm cells aka pollen

Anther

Stalk that holds the anther

Filament

Grains that are monoploid sperm and is composed of two cells

Pollen

The male structures of flower reproduction

Stamen

Sticky to catch and hold pollen

Stigma

Where pollen burrows a pollen tube to reach the ovule

Style

Contains ovules, develops into a fruit

Ovary

A monoploid female gamete, develops into a seed

Ovule

The female structures of flower reproduction

Pistil

Supports flower, connects it to stem

Pedicel

Large end of pedicel, closest to flower

Receptacle

Leaf-like structures that surround base of flower and protect the bud

Sepal

Refers to the complete circle of sepals

Calyx

Surround the reproductive structures and attract pollinators

Petal

Refers to all the petals together

Corolla

Divides to form 2 monoploid sperm which travel down the pollen tube to fertilize the ovule

Generative cell

Forms the pollen tube

Tube cell

The transfer of pollen grains from the anther to the stigma

Pollination

When pollen of one plant is received by the stigma of the same plant

Self-pollination

When pollen of one plant is received by the stigma of another plant

Cross-pollination

Water, wind, insects, birds

Method of pollination

a sugary liquid secreted by flowers to attract insects or birds for pollination and causes the pollen to stick on them

Nectar

The union of pollen and ovule

Fertilization

When 1 sperm fuses with the egg to form a zygote and 1 sperm fuses with 2 polar nuclei to become endosperm; occurs in flowering plants

Double fertilization

Becomes food for developing plant embryo

Endosperm

Protects the seed

Seed Coat

Develops into lower stem and roots

Hypocotyl

Develops into upper stem and leaves

Epicotyl

Food source for developing seed

Cotyledon

Plants that have seeds with one cotyledon (corn)

Monocot

Plants that have seeds with two cotyledons (beans, nuts)

Dicot

To begin to grow

Germination

Proper temperature, sufficient oxygen for respiration, moisture

Conditions for germination

An increase in size and/or number of cells; occurs in meristems

Growth

Found in tips of roots and stems; responsible for growth in length

Apical

Found between xylem and phloem; responsible for growth in diameter

Lateral (cambium)

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