What are the reactants and products of photosynthesis? –Reactants = water, CO 2, and sunlight...
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![Page 1: What are the reactants and products of photosynthesis? –Reactants = water, CO 2, and sunlight –Products = glucose and O 2.](https://reader035.fdocuments.us/reader035/viewer/2022062809/5697c0201a28abf838cd229c/html5/thumbnails/1.jpg)
What are the reactants and products of photosynthesis?– Reactants = water, CO2, and sunlight
– Products = glucose and O2
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Fold your sheet in half.
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Cut flaps on lines by cutting the first layer only.
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Structure and
function of plants
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Open your Open your foldable foldable and label and label it like this.it like this.
Structure FunctionsStructure Functions AdaptationsAdaptations
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FlowersFlowers
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Structure and FunctionStructure and Function
Anther: produces pollen
Pollen: haploid male gametes (sex cells)
Stigma & Style: Sticky top of style where pollen lands. The style transports it to the ovary.
Ovary: Female organ which produces female gametes.
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Adaptation to Adaptation to EnvironmentEnvironment
1. Bright colors and sweet nectar to attract pollinators.
2. Development of fruit for seed dispersal.
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LeavesLeaves
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Leaf structure
Greener on top
CO2 gets in here
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StructureStructure
Upper Upper EpidermisEpidermis
Palisade Palisade LayerLayer
Lower Lower EpidermisEpidermis
FunctionFunction
contains cuticle contains cuticle prevents water lossprevents water loss
Light reactions of photosynthesis.
Lets COLets CO22 in and O in and O22 and water out and water out (stomata)(stomata)
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Function of leaves
• Trap light energy for photosynthesis
• Produce sugar from photosynthesis
• Exchange of gases – carbon dioxide (in) and oxygen (out)
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StructureWide
Helps to catch more light energy
Thin
Helps get carbon dioxide from bottom to top of leaf for photosynthesis
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Stoma is a small holeIts size is controlled by 2 guard cells
closed open
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Stoma function is for gas exchange in the leaf
Carbon dioxide
oxygenGuard cell
Provided plant is photosynthesising
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Adaptations Adaptations to to
environmenenvironmentt
Thick cuticle in Thick cuticle in dry climates.dry climates.
Few Few stomata stomata to prevent to prevent water loss.water loss.
Reduced Reduced surface surface area to prevent area to prevent water loss. water loss.
(cactus) (cactus)
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StemsStems
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StructureStructure
XylemXylem
PhloemPhloem
Function Function
vascular tissue (tubes) vascular tissue (tubes) that carries that carries waterwater from from the roots to other the roots to other parts of the plantparts of the plant
Vascular tissue that Vascular tissue that carries carries sugar (food)sugar (food)
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Stems
• Stems can be herbaceous like the bendable stem of a daisy or woody like the trunk of an oak tree.
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Adaptation to the EnvironmentAdaptation to the Environment
Stiff cell walls for trunks and branches. Dead Xylem becomes the wood on the inside
of tree trunks.
Can be modified to store food.
ex: Tubers (potatoes) and Bulbs
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RootsRoots
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StructureStructure
Epidermis Epidermis and root capand root cap
Root hairsRoot hairs
Root tips Root tips (apical (apical meristem)meristem)
Function Function
--protection and absorption of protection and absorption of water and minerals.water and minerals.
-increase surface area for -increase surface area for absorptionabsorption
- tip of root that is growing - tip of root that is growing into the soil into the soil (area of (area of mitosis).mitosis).
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Wheat seed
Root hairs
Fragile parts of cells that grow from the main root
They massively increase the surface area for absorption
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Root ‘B’ has had the hairs damaged -
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Adaptation to the EnvironmentAdaptation to the Environment
1.1. Can be modified to store starch Can be modified to store starch and sugar. (Carrots, and sugar. (Carrots, Beets, Turnips)Beets, Turnips)
2.2. In dry climates root systems can be In dry climates root systems can be extremely long to reach water.extremely long to reach water.