combustion, corrosion, photosynthesis, respiration

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xylem cells

- part of the plants transport system - supplies water to the leaf

spongy mesophyll cells

-loosely packed -air spaces in between make this layer sponge like

palisade mesophyll cells

-most photosynthesis happens here -many chloroplasts are very green

lower epidermis

-one cell thick

upper epidermis

-one cell thick -clear, allowing light to reach the palisade cells

stoma (stomata in plural)

-opening on underside of the leaf -allows CO2 and O2 to enter and exit

phloem cells

-part of the plants transport system -carry glucose and other chemicals away from the leaf

cuticle

-waxy waterproof coating - reduces water loss - protects leaf from fungi and bacteria

O2

2 of oxygen

Reactants

Are the substances you started with before the chemical process

corrosion is...

a chemical reaction that occurs when metals are exposed to water or air or other chemicals

endothermic

absorbs energy

oxygen is supplied through the lungs so

aerobic respiration can be carried out

aluminium is very reactive, reacting almost immediately with air forming aluminium oxide

aluminium + oxygen gas -> aluminium oxide

hydrocarbons

are compounds of hydrogen and carbon

products

are the substances formed by the chemical reaction

CO2

carbon dioxide

the reactants in photosynthesis are

carbon dioxide + water

the chemical equation for photosynthesis is...

carbon dioxide + water -> (sunlight, chlorophyl) glucose + oxygen gas

the lungs also allow the waste products of respiration __________ to exit the body

carbon dioxide and water vapour

chloroplasts contain

chlorophyl

photosynthesis takes place in

chloroplasts

what type of combustion reactions is this methane gas + oxygen gas -> carbon dioxide +water vapour

complete

if plants absorb energy from sunlight to allow photosynthesis to occur, what type of reaction is it?

endothermic reaction

C6H12O6

glucose

the products of photosynthesis are

glucose + oxygen gas

the chemical equation for respiration is...

glucose + oxygen gas -> carbon dioxide + water +energy

what type of combustion is this methane + oxygen gas -> carbon monoxide + water vapour

incomplete

hydrocarbon examples

methane gas + oxygen gas -> carbon dioxide plus water vapour

respiration happens in the parts of the cell called the

mitochondria

an acid + a base =

neutralisation

complete combustion

occurs in an unlimited supply of oxygen and the products are carbon dioxide and water

incomplete combustion

occurs in limited supply of oxygen and produce carbon (smoke, soot, charcoal) or carbon monoxide and water

combustion

occurs whenever something reacts with oxygen gas whilst burning or exploding

guard cells

open and close the stoma

sunlight

passes through the cuticle and upper epidermis into the palisade cells where the chloroplasts are

plants make their own food in a process called

photosynthesis

exothermic

releases energy

acid+metal->

salt+hydrogen gas

acid + base->

salt+water

acid + hydrogen carbonate->

salt+water+carbon dioxide

acid+carbonate->

salt+water+carbon dioxide

pure silver reacts with sulfur to form a black coating called tarnish

silver + hydrogen sulfide -> silver sulfide + hydrogen gas

chloroplasts are...

specialised organelles/structures found in cells in the green parts of plants

excess glucose is stored as ______ by the plant

strach

law of conservation mass

the total mass of the reactants is equal to the total mass of the products

chlorophyl ...

traps light energy from the sun and converts it into chemical energy (glucose)


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