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Year 11 GCSE Biology Paper 2 > Plant Structure > Flashcards

Plant Structure Flashcards

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1
Q

Guard cells

A

-take in water by osmosis to become turgid, opening the stomata
-lack of water results in guard cells becoming flaccid, closing the stomata

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2
Q

Stomata

A

-stomata on the lower surface allow for gas exchange, needed for photosynthesis
-no stomata on the upper surface to reduce water loss through transpiration

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3
Q

Waxy cuticle

A

Minimise water loss via evaporation

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4
Q

Upper epidermis

A

Transparent to let light through

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5
Q

Palisade mesophyll

A

Many chloroplasts containing chlorophyll which traps light for photosynthesis

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6
Q

Spongey mesophyll

A

Spaces between cells to allow for gas exchange so carbon dioxide can enter/ oxygen can leave the cells

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Year 11 GCSE Biology Paper 2 (22 decks)

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