2 Plant AdaptationsAdaptations help plants survive (live and grow) in different areas(biomes).Adaptations - features that allow a plant or animal to live in a particular place or habitat.
3 Adaptations of PlantsAbsorbing Nutrients –absorb mineral nutrients from soil. (roots)Preventing Water Loss-cuticle – watertight, waxy outer covering-epidermis – outer layer of plant-stomata –small openingsguard cells – cells around stomatas which help them to open.Reproducing on Land –use pollen to reproduce
5 Adaptations of Plants 4. Advantages of Conducting Tissues - Vascular plants have tissues that transport water and nutrients.5. Advantages of seeds- Protection- Nourishment- Dispersal- Delayed growth6. Advantages of Flowers – Color/ scent help with pollination (reproduction)
6 What are some adaptations in different habitats?
7 Desert AdaptationThis plant has a waxy coating on its leaves to prevent water loss.This cactus displays light-colored hair that helps shade the plant and hair to help shade the plant, reducing water loss.
8 Tropical Rainforest Plant Adaptation Drip-tips on leaves help shed excess water. Broad leaves help get sunlight.Prop roots help support plants in the shallow soil.
9 Temperate Rainforest Plant Adaptation Epiphytes live on other plants to reach the sunlight.Trees can grow very tall in this very moist environment.
10 Temperate Deciduous Forest Wild flowers grow in the spring before trees grow their leaves.In the autumn, deciduous trees drop their leaves to minimize water loss.
11 Temperate Deciduous Forest Plant Adaptations Many trees have thick bark to protect against cold winters .Broad leaves can capture a lot of sunlight for a tree.
13 Hormone-producingcellsA. Hormones in Plants1. Plant cells produce hormones, which are chemical messengers, that travel throughout plant causing other cells called target cells to respond.2. In plants, hormones control:Plant growth & developmentPlant responses to environmentFlower BloomingMovementof hormoneTargetcellsCells in one blooming flower signals other blooms using hormones to open.
14 B. Plant cells will send signals to one another to tell them: When trees to drop their leaves.When to start new growth.When to cause fruit to ripen.When to cause flowers to bloom.When to cause seeds to sprout.SproutingCorn SeedsTree BuddingFruit RipeningCactus BloomingLeaf Drop
15 Important HormonesGibberellins - responsible for plants growing into adult plants and flower growthEthylene – causes fruits to ripenAuxins - responsible for geotropisms and phototropismsEthylene released by apples and tomatoes causes fruit to age quickly.
16 D. Plant TropismsTropism: the way a plant grows in response to stimuli in the environment.Phototropism: growth response to lightPlants bend towards lightGravitrophism: growth response to gravityplant roots grow down with gravity, shoots (stems) grow up against gravity and out of the soil.Also called geotrophismThigmotropism: growth response to touchvines grow up around trees, Venus flytrap closes when leaves are touched
17 Phototropism Gravitropism Slide # 23What type of tropism is shown in these pictures?PhototropismGravitropismPhototropismThigmotropismGravitropismThigmotropism
18 Plants in our livesFruits and vegetablesCropsWoodmedicineFibers