4.1 lt Flashcards
Plants make their own food through _______
Photosynthesis
is the main source of energy during photosynthesis
sunlight
The top of a leaf is exposed to the most light-so the cells specialized for trapping light are on top.. These cells are called _______
palisade mesophyll
Leaf is like a plant’s food factory, and its part work together to get the _______
reactants
These cells are ** packed full of chlorophyll**, the green chemical that plants use to absorb light. That is also why the top side of the leaf is darker than the bottom side.
Palisade mesophyll
(small or large)
most leaves have a ______ surface area to trap as much sunlight as possible
large
This is where the bottom of the leaf comes in. It’s got these little pores called stomata.
Carbon dioxide
They are controlled by guard cells, which open up to let carbon dioxide in. BUT they can also close the stomata and prevent other things like water from escaping. open up so carbon dioxide can diffuse into the leaf.
Stomata
CO2 comes in through the stomata, makes its way through gaps in the airy layer of cells (called _________)
spongy mesophyll
(O2 or CO2)
Leaves are thin, so the ___ doesn’t have to far to travel
CO2
Water comes up through the roots and stem and enters the leaf through a ________ ________.
vascular bundle
vascular bundle contains hollow tube for water transport called ___ _________
the xylem
Vascular bundles spread out in the leaf to form _____ so it can spread water throughout the leaf.
veins
So now the leaf’s palisade cells have water, carbon dioxide, and sunlight. all they needed to photosynthesise and make _______(their food) and oxygen.
glucose
Above the palisade mesophyll and below the spongy mesophyll are _______ cells, which produce waxy coating called the cuticle.
epidermis
The 1. ______ seals up the leaf, so only that the only way in and out is through the stomata, which are regulated by the 2. _________.
- cuticle
- guard cells
What are the 6 Top to bottom part of the leaf
- CUTICLE AND EPIDERMIS
- PALISADE MESOPHYLL
- VASCULAR BUNDLE
- SPONGY MESOPHYLL
- EPIDERMIS AND CUTICLE
- STOMATA
Top to bottom part of the leaf that Basically make up the leaf’s skin
cuticle and epidermis
Top to bottom part of the leaf which are chlorophyll-rich mesophyll
Palisade Mesophyll
Top to bottom part of the leaf that stretches in spongy mesophyll spaces, vascular bundle with xylem to transport **water and phloem to transport sugars. (Vein)
Vascular Bundle
Top to bottom part of the leaf which have plenty of space between them for reactants to move through-through that space stretches the vascular bundle
Spongy Mesophill
Top to bottom part of the leaf where space around the lower epidermis and the cuticle are the stomata, with guard cells on either side. only way of the COZ
Stomata
LEAVES COME IN ALL DIFFERENT SHAPES AND BUT MOST OF THEM HAVE THESE SAME PART IN COMMON WHICH ALLOWS THEM TO GET ________ IN AND FORM PHOTOSYNTHESIS
REACTANTS
External part of the leaf that is known as leaf blade
Lamina
