Plant Tropisms Today’s Goal: I can explain how plants respond to the environment Warm-up: Take out botany packet and put all your books on the side of the room. Then, in your science journal Turn to page 118. Silently read page 118 and 119 Plant Tropism- Light and Gravity. Stop at Seasonal Responses. Define Tropism.

Plant Responses to the Environment What do you notice about all of the sunflowers in this field?

Plant Tropisms Often, we don’t think of plants as being real organisms because they don’t think or move around. Growth in response to a stimulus Stimuli that effect plant growth: Light (phototropism) Gravity (gravitropism) Water (hydrotropism) Positive tropism  grows towards stimulus Negative tropism  grows away from stimulus While they may not move consciously (or very quickly) plants do respond to changes in the environment.

Remember, this all occurs at the cellular level! Phototropism Remember, this all occurs at the cellular level! No brain required!

Gravitropism Have you ever seen a tree growing out of embankment like this? Why does this happen?

Thigmotropism Organisms response to contact Remember, this all occurs at the cellular level! No brain required!

Thigmotropism Organisms response to contact Remember, this all occurs at the cellular level! No brain required!

What do you think is meant by “limiting factor”? Limiting Factors What do you think is meant by “limiting factor”? What gas could be considered a limiting factor for humans but NOT for plants? Oxygen What are the different things that plants need in order to survive…without which their growth would be limited?

Seed & Germination Journal Lima Bean Seed Pull seed coat off of seed and split the bean in half Draw and color the seed Label: Seed Coat Young Plant Cotyledon (Food) Pea Plant (Germinating) Draw the germinating pea plant Vocab Definitions: Seed Coat (87) Dormant (116) Germination (116)

Seed & Germination Journal Lima Bean Seed Pull seed coat off of seed and split the bean in half Draw and color the seed Label: Seed Coat Young Plant Cotyledon (Food) Pea Plant (Germinating) Draw the germinating pea plant Vocab Definitions: Seed Coat (87) Dormant (116) Germination (116)

TEST REVIEW Today’s Goal: I can explain how plants respond to the environment Homework: Botany Test TOMORROW STUDY! Warm-up: Turn to reviews in your packet. Then, in your science journal Explain the difference between vascular seed plants and vascular seedless plants.

Practice Quiz 1) What type of vascular tissue is responsible for transporting water and minerals from the roots to the leaves?

Practice Quiz 2) What do a leaf’s stomata allow to enter into a leaf?

Practice Quiz 3) Name an example of a seedless vascular plant:

Practice Quiz 4) On what part of the stamen do the pollen grains form?

Practice Quiz 5) On what part of the pistil must the pollen grains land in order to reach the ovules in the ovary?

Practice Quiz 6) What are the upper and lower cell layers of a leaf called?

Practice Quiz 7) What plant group includes conifers, ginkgoes, cycads and other cone-bearing plants with needles?

Practice Quiz 8) Which part of a flower develops into the fruit once it has been pollinated?

Practice Quiz 9) Photosynthesis: 1) The 2 substances required for photosynthesis are: 2) The main product of photosynthesis is: 3) The waste product is:

Practice Quiz 10) Label the flower diagram

Practice Quiz 1) What type of vascular tissue is responsible for transporting water and minerals from the roots to the leaves? xylem

Practice Quiz 2) What do a leaf’s stomata allow to enter into a leaf? CO2

Practice Quiz 3) Name an example of a seedless vascular plant: fern

Practice Quiz 4) On what part of the stamen do the pollen grains form? anther

Practice Quiz 5) On what part of the pistil must the pollen grains land in order to reach the ovules in the ovary? stigma

Practice Quiz 6) What are the upper and lower cell layers of a leaf called? epidermis

Practice Quiz 7) What plant group includes conifers, ginkgoes, cycads and other cone-bearing plants with needles? gymnosperm

Practice Quiz 8) Which part of a flower develops into the fruit once it has been pollinated? ovary

carbon dioxide (CO2 ) and water (H2O) Practice Quiz 9) Photosynthesis: 1) The 2 substances required for photosynthesis are: 2) The main product of photosynthesis is: 3) The waste product is: carbon dioxide (CO2 ) and water (H2O) glucose (C6H12O6) oxygen (O2)

Practice Quiz 10) Label the flower diagram petals anther filament sepal ovule (egg) ovary style stigma stamen pistil