Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
18 Cards in this Set
- Front
- Back
|
energy
|
the ability to cause change or move matter
- all life processes are driven by energy |
|
|
Chemical Reactions
|
whe bonds are broken and reformed to make different substances
|
|
|
Metabolism
|
sum of all chemical reactiions in body
-breaking down of foods for energy - building new compounds |
|
|
What do you need to start a reaction
|
activation
|
|
|
catalyst
|
anything that lowers activation energy
-organic -inorganic |
|
|
Why is activation energy lower
|
enzymes lower amount of activiation energy to get chemical reactions started
|
|
|
enzymes
|
-work like lock and key
-specific enzymes work with specific substrates. - each substrate fills with enzymes activation site - |
|
|
enzymes can be affected by
|
-temperature
-pH - amount of enzymes available |
|
|
ATP stores energy
|
atp is a special carrier molecule that stores energy available for cell use
|
|
|
ATP
|
is the energy currency of a cell, energy source for all cell functions
|
|
|
Photons
|
group together in waves
- each wavelength present a color - waves have a different color -Pigments absorb wavelengths of light. colors are reflected wavelengths |
|
|
Chlorophll
|
-reflects light in wavelength
-pigment in organelle chloroplast |
|
|
Chloroplast
|
grana-disks
liquid-stroma in the cells of leaves |
|
|
Stroma
|
site of gas exchange
gas- Hydrogen peroxide and oxygen |
|
|
plants take in
|
inorganic molecules
make organic compound-glucose |
|
|
Photosynthesis
|
is process in which green plants get food
|
|
|
Light reaction
|
occurs in the grana
must have light reacts with chlorophyll oxygen realsed in ligt |
|
|
Dark Reaction
|
occurs in stroma
can work in dark or light glucose is product made in dark |
