* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Tropism - My Teacher Site
History of herbalism wikipedia , lookup
Photosynthesis wikipedia , lookup
Plant secondary metabolism wikipedia , lookup
History of botany wikipedia , lookup
Plant breeding wikipedia , lookup
Plant use of endophytic fungi in defense wikipedia , lookup
Plant stress measurement wikipedia , lookup
Plant defense against herbivory wikipedia , lookup
Historia Plantarum (Theophrastus) wikipedia , lookup
Evolutionary history of plants wikipedia , lookup
Plant evolutionary developmental biology wikipedia , lookup
Plant morphology wikipedia , lookup
Ornamental bulbous plant wikipedia , lookup
Plant reproduction wikipedia , lookup
Plant nutrition wikipedia , lookup
Plant ecology wikipedia , lookup
Carnivorous plant wikipedia , lookup
Protocarnivorous plant wikipedia , lookup
Plant physiology wikipedia , lookup
Perovskia atriplicifolia wikipedia , lookup
Plant Responses to the environment “Tropisms” What is a Tropism? Tropism comes from the Greek word for “_________________” So when an organism exhibits a tropism it either has a ____________ turning (___________ the source) or a ____________ turning (________ from the source) Many organisms have tropisms What kinds of tropisms do plants have? Plants have 4 kinds of tropisms that we will learn about Tropism Root word Root word Leaves and stem meaning reaction Phototropism Gravitropism Light “Gravi” none Negative Away from gravity Hydrotropism Thigmotropism Roots reaction Picture Plant Adaptations - When tropisms help survival Sometimes plants can’t get all the resources they need. Over long periods of times tropisms ____________ into _____________ for survival Cacti have taken ___________________________ to an extreme! Cacti live in VERY ___________, Very ___________ conditions so they have modifications to help them cope with the weather Their roots are _______________ and shallow to seek out water They have also modified their _________________ down into to tiny thorns to keep the water from ______________________ And their stems are filled with ________________ to store water Venus Fly Traps and other carnivorous plants have taken ____________________ to an extreme! They live in _________________________ soil and can’t get enough nutrients from the soil They use their touch sensitive fibers to know when and ___________ lands on their traps and then they close, ____________ the insect and suck up all the delicious _______________ from the insect Qu e s t i o n 1 Which of the following is false about tropisms? A. they can be positive or negative B. they only occur in plants C. when organisms move toward or away D. they are natural occurrences Qu e s t i o n 2 What does positive phototropism mean? A. the organism moves toward light B. moves away from light C. moves toward the picture D. moves away from the picture Qu e s t i o n 3 What does part of the plant has a positive gravitropism? A. the roots B. the stem C. The leaves D. the flowers Qu e s t i o n 4 Which tropism would help a cactus survive best? A. phototropism B. geotropism C. hydrotropism D. thigmotropism Qu e s t i o n 5 Which tropism is being displayed most here? A. phototropism B. geotropism C. hydrotropism D. thigmotropism Qu e s t i o n 6 Which tropism is being displayed most her e? A. phototropism B. geotropism C. hydrotropism D. thigmotropism Qu e s t i o n 7 Which tropism is being displayed most here? A. phototropism B. geotropism C. hydrotropism D. thigmotropism Qu e s t i o n 8 What adaptations does this plant have? A. thick stem to store water B. tiny leaves to conserve water C. long roots to search out water D. all of the above Qu e s t i o n 9 Where would you most likely find carnivorous plants? A. nitrogen poor swamps B. nutrient rich rain forests C. temperate forest D. all of the above