unit 4 test review
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what is autotrophic nutrition and heterophic nutrition
- auto: makes its own food
- hetero: must ingest food
formula for photosynthesis
carbon + water >(light)> glucose + oxygen
functions of guard cells are
regulate water loss and exchange of gasses
cellular resp occurs in the....
formula for cellular resp
oxygen + glucose >enzymes> carbon + water + ATP
chemical messengers are received by
if you have high blood sugar level, what happens?
pancreas releases insulin into the blood
if you have low blood sugar level?
pancreas releases glucagon into the blood
what is vasodilation
blood vessels dilate to let heat escape to enviroment
what is vasocontriction
blood vessels constrict to prevent heat from escaping to enviroment
what is shivering?
involuntary contraction of muscles
more oxygen requires...
increased breathing rate and increased circulation(heart rate)
what structure within cell membrane is responsible for a cells reaction to a hormone?
will there be a reaction to glucagon if it comes in contact with insulin receptor?
NO. glucagon will not match up its shape with insulin receptor
Hormones are released by the _________ system
guard cells release 2 gases which are...
oxygen and carbon dioxide
whats the food created by plants during photosynthesis?
how is energy stored within organic compounds
energy is stored between the bonds of organic molecules (ATP, glucose,etc)
describe the steps of how food is turned into energy?
- 2.digest (small intestine)
- 3. absorbed into blood
- 4. circulated
- 5. diffuses into cell
- 6. synthesizes
enery from cellular resp. is stored in ...
energy is used to power all ____ activities in the body
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