* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Plant Responses and Growth
Plant tolerance to herbivory wikipedia , lookup
History of herbalism wikipedia , lookup
Evolutionary history of plants wikipedia , lookup
Plant stress measurement wikipedia , lookup
Historia Plantarum (Theophrastus) wikipedia , lookup
Plant nutrition wikipedia , lookup
History of botany wikipedia , lookup
Ornamental bulbous plant wikipedia , lookup
Plant secondary metabolism wikipedia , lookup
Plant use of endophytic fungi in defense wikipedia , lookup
Flowering plant wikipedia , lookup
Venus flytrap wikipedia , lookup
Plant defense against herbivory wikipedia , lookup
Plant breeding wikipedia , lookup
Stimulus (physiology) wikipedia , lookup
Plant reproduction wikipedia , lookup
Plant evolutionary developmental biology wikipedia , lookup
Plant morphology wikipedia , lookup
Plant ecology wikipedia , lookup
Plant physiology wikipedia , lookup
Sustainable landscaping wikipedia , lookup
Plant Responses and Growth EQ: How do plants respond to stimuli and hormones? EQ: How do plants respond to stimuli and hormones? Tropisms • A plant’s growth response toward or away from a stimulus – Thigmotropism - Touch – Phototropism - Light – Gravitropism - Gravity Positive Tropism • A plant growing toward a stimulus EQ: How do plants respond to stimuli and hormones? 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? 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? • Auxin – – Speeds up plant growth – Controls plant’s response to light EQ: How do plants respond to stimuli and hormones? Plant Hormones Life Spans of Angiosperms • Annuals – flowering plants that grow, flower and die in a single year • Biennials – complete life cycle in two years – 1st year germinate, grow roots and very short stems and leaves – 2nd year grow new stems and leaves, produce fruit • Perennials – live longer than two years EQ: How do plants respond to stimuli and hormones? 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?