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What is made during photosyntheses
glucose
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What do plants do with glucose
they use it as food
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How do oxygen and carbon dioxide move in and out of leaves
the stomatal pores
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How do plants take in water
through the roots
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What is the by-product made in photo syntheses which is needed by animals
oxygen
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How does water supply affect the rate of photo syntheses
too little makes photo syntheses slow down
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Describe how light levels affect the rate of photosyntheses
The more light, the faster photosyntheses is
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What is the optimum temperature for photosyntheses
around 30C
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How does burning paraffin in a greenhouse help plants photosynthesise
The CO2 levels increase
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What does a plant convert glucose into so it can store it
starch
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How would you get rid of all the starch from a plant's leaves
deprive the leaf of either light, water, carbon dioxide or chlorophyll
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What do you use to test a plant leaf for starch
iodine
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What two features of root hairs make them well designed for absorbing nutrients
thin call membrane and the large surface areas on the root hairs
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What are the three essential minerals needed by plants to keep them healthy
nitrates, phosphates, potassium
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What are nitrates needed for
provides nitrogen which is needed for making proteins
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What are phosphates used for
phosphates provide phosphorus needed for photosynthesis and respiration
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What is potassium used for
potassium helps agents like enzymes to work properly. These enzymes are needed for photosyntheses and respiration
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What would happen if you didn't have nitrogen
A small plant with yellow older leaves
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What would happen if you didn't have phosphorus
Poor root growth and purple younger leaves
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What would happen if you didn't have potassium
Yellow leaves with dead bits
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What parts are in the plants stamen
the anther and the filament
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What parts are in a plants carpels
stigma, style and ovary
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Why do some plants have brightly coloured petals
because of insect pollination
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What is the difference between self pollination and cross pollination
self pollination= pollen is transfered from stigma on the same plant. cross pollination= pollen is transferred from the stamen of one plant to the stigma of another plant.
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4 features of plants that use insect pollination
1)bright coloured petals 2) scented flowers 3)sticky stigma 4)pollen
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What is fertilisation
the joining of sex cells
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How does pollen get from the stigma to the ovary
After landing on ripe stigma, with help from insects or the wind a pollen tube then grows down through the style to the ovary
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What does a fertilised ovule develop into
a seed
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Name 2 plants that use wind dispersal to scatter their seeds
dandelion fruit, sycamore fruit
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How do pea plants disperse their seeds
the pods dry out and flick the seeds out
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What 3 things are need to be just right for a seed to germinate
1)temperature 2)air conditions 3)enough water
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Other cards in this set

Card 2

Front

What do plants do with glucose

Back

they use it as food

Card 3

Front

How do oxygen and carbon dioxide move in and out of leaves

Back

Preview of the front of card 3

Card 4

Front

How do plants take in water

Back

Preview of the front of card 4

Card 5

Front

What is the by-product made in photo syntheses which is needed by animals

Back

Preview of the front of card 5
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