Angiosperm Reproduction

Note Packet

Lesson Topic Statement(s) and Objective(s) Activities
1 Flower Structure

9.4.S2:  Drawing half-views of animal-pollinated flowers.

  • Draw and label an animal pollinated flower, including:

    • Nectar-secreting glands

    • Petals

    • Sepals

    • Anthers

    • Filaments

    • Carpel

    • Stigma

    • Style

    • Ovary

    • Ovule

  • State the function of the different parts of the animal-pollinated flower.

Flower structure notes

Flower structure handwritten notes

Flower structure CFU

Flower dissection

Flower dissection form 

Flower structure diagram quiz

The Global Flora

TED-ed:  the beautiful tricks of flowers

A&B:  how flowering plants changed the world

A&B:  making scents of flowers

A&B:   Can scientists solve Darwin's ‘abominable mystery' about the angiosperm explosion?
2 Flowering

9.4.U1:  Flowering involves a change in gene expression in the shoot apex.

  • Compare the vegetative and reproductive phases of the angiospermatophyta life cycle.

  • State that flowers are produced from a shoot apical meristem.

  • State two abiotic factors that may trigger flowering.

  • Compare the timing of flowering in short-day plants and long-day plants. 

  • Outline the process by which changes in gene expression trigger flowering.


 9.4.U2:  The switch to flowering is a response to the length of light and dark periods in many plants.

  • State the role of the pigment phytochrome.

  • Describe the conversions between the two forms of phytochrome.

  • Describe the role of phytochrome in controlling flowering in long and short day plants.


9.4.A1:  Methods used to induce short-day plants to flower out of season.

  • State how plants can be manipulated to force flowering out of season.

Control of flowering notes

Effect of interrupted nights video

Control of flowering CFU

Flower cards (draw a card and explain when it flowers)

ScitC:  Flowering

Modeling photoperiods

Modeling photoperiod data


3 Pollination and Fertilization

9.4.U3:  Success in plant reproduction depends on pollination, fertilization and seed dispersal.

  • Define pollination, fertilization and seed dispersal.

  • State the changes to the ovule and ovary that result from fertilization.

  • List mechanisms of seed dispersal.

Pollination and seed dispersal handwritten

Pollination and fertilization slides

Video:  double fertilization

Pollination and fertilization CFU

Examine local pollen under a microscope

(maybe a “find the matching pollen” challenge)

Video:  hidden beauty of pollination

Fast plant pollination

Observing pollen tube growth lab (limited success)

Pollination role play

Anne Gaskett: The sexual deception of orchids | TED Talk

A&B:  flirty plants
4 Fruits

9.4.S1:  Drawing internal structure of seeds

  • Draw and label the structure of seeds, including:

    • Embryo root

    • Embryo shoot

    • Cotyledons

    • Testa

    • Micropyle

    • Hilum

  • State the function of the different parts of the seed.

Seed structure notes

Seed CFU

Seed dissection

Virtual seed dissection

Create seed balls

A&B:  Who Moved My Seed?

A&B:  Loss of seed-hauling animals spells trouble for plants in warming world
5 Seeds

9.4.S1:  Drawing internal structure of seeds

  • Draw and label the structure of seeds, including:

    • Embryo root

    • Embryo shoot

    • Cotyledons

    • Testa

    • Micropyle

    • Hilum

  • State the function of the different parts of the seed.

Seed structure notes

Seed CFU

Seed dissection

Virtual seed dissection

Create seed balls

A&B:  Who Moved My Seed?

A&B:  Loss of seed-hauling animals spells trouble for plants in warming world
6 Germination

9.4.S3:  Design of experiments to test hypotheses about factors affecting germination.

  • Define germination.

  • Outline why water, oxygen and warmth are required for germination.

  • Outline the role of gibberellin during germination.

  • Write five example problem questions for experiments that could test factors affecting germination.

Needs of Seeds prompt

Germination notes

Germination CFU

Fast Plant directions

Beany baby book

Beany baby initial set up (this is a “crib” and then the plants move into a pot)

Inquiry lab teacher comments

Inquiry lab planning sheet

A&B:   Climate change threat to tropical plants

An internal thermometer tells the seeds when to germinate -- ScienceDaily


Course Source GA-mutation experiment

Student questions handout

(key)

7 Wrap Up and Review  

Summary note page

Review question slides

1-pager

Final knowledge audit