1. Plant Responses and Growth EQ: How do plants respond to stimuli and hormones?

2. Tropisms A plant’s growth response toward or away from a stimulus –Thigmotropism - Touch –Phototropism - Light –Gravitropism - Gravity EQ: How do plants respond to stimuli and hormones?

3. Positive Tropism A plant growing toward a stimulus EQ: How do plants respond to stimuli and hormones?

4. Negative Tropism A plant growing away from a stimulus http://plantsinmotion.bio.indiana.edu /plantmotion/movements/tropism/gra vitropism/gravi1/gravitrop.html EQ: How do plants respond to stimuli and hormones?

5. Plant Hormones Hormone – a chemical that affects how a plant grows and develops –Control tropisms –Germination –Formation of plant parts –Shedding of leaves –Development of fruit EQ: How do plants respond to stimuli and hormones?

6. Plant Hormones Auxin – –Speeds up plant growth –Controls plant’s response to light EQ: How do plants respond to stimuli and hormones?

7. Life Spans of Angiosperms Annuals – flowering plants that grow, flower and die in a single year Biennials – complete life cycle in two years –1 st year germinate, grow roots and very short stems and leaves –2 nd year grow new stems and leaves, produce fruit Perennials – live longer than two years EQ: How do plants respond to stimuli and hormones?

8. Class Work and Homework Fill In –What did I learn –Confused –Say Read pages A164 – A166 Questions 1-4 A 166 EQ: How do plants respond to stimuli and hormones?