Plants Flashcards
Function- stem
Holds up leaves & flower
Transport water, minerals & food
Stores food
Function- leaves
Photosynthesise Allows carbon dioxide in Allows oxygen out into the air Allows water vapour to pass out Some store food (glucose)
Function- flowers
Produce seeds so plants can reproduce
Function- bud
Growth point
New leaves/flowers will grow from a bud
Transpiration
Loss of water from a plant
Allows water vapour to evaporate from the leaves into the air
Occurs- leaves
Transpiration stream
Flow of water from the roots to the leaves of the plant
Function- transpiration
Brings water to the leaves for photosynthesis
Brings minerals to the leaves (dissolved in the water)
Cool the plant
Mineral transport
Minerals dissolved in water in the soil
Minerals absorbed by the roots in the water and pass around the plant in the water
Xylem
Carries around minerals & water
Phloem
Carries around food
Tropism
growth of a plant in response to STIMULUS
Phototropism
Growth of a plant in response to light
E.G. Stem grows towards the light, allows leaves to get as much light as possible
Geotropism
Growth of a plant in response to GRAVITY
E.G. roots grow down into soil for anchorage, water & minerals
By are the leaves put into HOT ALCOHOL
Remove chlorophyll
Carbon dioxide (photosynthesis)
Passes from the leaf through the stomata
Water (photosynthesis)
Water from the soil enters the plant through the roots and moves up through the plant in xylem to the leaves
Light (photosynthesis)
Light form the sun is absorbed by the leaves
Chlorophyll (photosynthesis)
Green pigment found in the leaves
Glucose what is it?/function/stored as
Food made by plant
To provide energy for respiration
Stoned as starch
Oxygen
Used for respiration
Released out of the stomata into the air
Equation for photosynthesis
Carbon dioxide+ water Light Glucose+oxygen
Chlorophyll (Food)
Female gamete +male gamete
Stamen
Carpel
Fertilisation
joining of the male gamete and female gamete to form a ZYGOTE.
Seed and fruit formation
The oval forms the seed and the ovary forms the fruit
Testa, embryo: plumule, radicl. food supply
Seed dispersal
Carrying of the seed as far as possible form the parent plant
Advantages of seed dispersal
Reduces competition between the seedlings & parent plant for light, space and water
Methods of dispersal
Animal, self, wind, water
Germination
Growth of a seed to for, a new plant
Conditions necessary: water, oxygen, warmth.
Function-Roots
Anchor & support plant
Store food
Absorb water & minerals