Plant Reproduction

Chapter #4

What is the difference between Sexual Reproduction and Asexual

Reproduction? Sexual requires an egg and sperm Asexual is vegetative

What are the Female parts of the flower?

Pistil: Stigma, Style, Ovary Pollen lands on Stigma, travels

down style to ovary

What is a Perfect Flower?

has Stamen & Pistil on same flower only one part = imperfect

What is the difference between a Monoecious and Deoecious plant?

Monoecious: male & female flowers on same plant

Dioecious: male & female flowers on different plants

What are the other parts of the flower?

Calyx: all the sepals Corolla: all the petals

What is a Complete Flower?

A flower that has all four major flower parts: Pistil, Stamen, Calyx, Corolla

What type of flower does the grass plant have?

has calyx, corolla, pistil, stamen any missing parts = imcomplete perfect & incomplete

What is a Floret?

basic flower unit

What is a Spikelet?

a group of florets

What are the types of Inflorescenses?

• Panicle Inflorescence: (oats, some grasses) branched structure at tip of stem

What are the types of Inflorescenses?

• Spike Inflorescence: (wheat, barley) spikelets attached directly to stem.

What are the types of Inflorescenses?

• Raceme Inflorescence: (mustard, rapeseed) single flowers attached to stalk or stem.

What are the types of Inflorescenses?

• Head Inflorescence: (sunflower) enlarged stem = receptacle

What is a Fruit?

An Apple or Tomato is considered a fruit. A Fruit is a mature ovary.

Fruits can be fleshy (tomato) or dry (wheat)

What is Pollination?

• process of transferring pollen grains from the anther to the stigma

plants can be self-pollinated (male & female flowers on same plant) or cross-pollinated (different plants)

What is Fertilization?

when sperm is united with an egg pollen lands on stigma, germinates,

and grows down style to the ovary where sperm fertilizes the egg (pollen tube)

there are actually two fertilizations. Second sperm fertilizes second egg to form the endosperm (food for the seed)