Angiosperms Lecture Notes

Flashcards about angiosperms, including flower types, reproduction, and lineages.

What are Complete Flowers?

Contain all 4 flower organs: sepals, petals, stamens, and pistil

Give some examples of complete flowers.

Hibiscus, rose, sunflower, Lily

What are Incomplete Flowers?

Flowers that lack one or more organ

Give some examples of incomplete flowers.

Flowers of grass plants (family Gramineae or Poaceae)

What are the four types of organs found in flowers?

Sepals, Petals, Stamens, Carpels

What are Perfect Flowers?

Contain both male and female reproductive structures

Give some examples of perfect flowers.

Lilies, roses, dandelions, wheat, apple, tomato

What are Imperfect Flowers?

Flowers that lack one or more reproductive organ

Give some examples of imperfect flowers.

Corn, black walnut, cannabis & cottonwood

What is the key characteristic of imperfect flowers?

Are missing either a pistil or a stamen

What is the key characteristic of complete flowers?

Contain all flower structures: sepals, petals, stamens, pistils

What is the key characteristic of incomplete flowers?

Are missing one or more of the flower structures

What do microspores develop into?

Pollen grains (n)

The flowering plant is what generation?

Diploid sporophyte generation

What does megaspore undergo mitosis to produce?

A few-celled female gametophyte

The zygote matures into what?

Embryo

What is the purpose of endosperm?

A food source for embryo or seedling development

Where does the seed coat develop from?

Develops from the ovule integuments

What does the pollen tube deliver?

Delivers 2 sperm to the ovule

What happens in the double-fertilization process?

One sperm fertilizes the egg, and the other fuses with 2 gametophyte nuclei to form the first endosperm cell

The embryo germinates into what?

Young sporophyte

Monocots and eudicots are named for what differences?

Named for differences in the number of embryonic leaves called cotyledons

What is the root structure of a eudicot?

Root xylem and pholem in a ring

What is the stem structure of a monocot?

Vascular bundles scattered in stem

What is the leaf structure of a monocot?

Leaf veins form a parallel pattern

What is the flower structure of a monocot?

Flower parts in threes and multiples of three

What is the root structure of a eudicot?

Root xylem and pholem in a ring

What is the stem structure of a monocot?

Vascular bundles scattered in stem

What is the leaf structure of a monocot?

Leaf veins form a parallel pattern

What is the flower structure of a monocot?

Flower parts in threes and multiples of three

What is the flower structure of a eudicot?

Flower parts in fours or fives and their multiples

What is the root structure of a eudicot?

Taproot usually present

What is the root structure of a monocot?

Fibrous root system (no main root)

What is the leaf structure of a eudicot?

Leaves with branched veins

What is the stem structure of a eud

Vascular bundles in ring