3.1 Bioenergetics - Pt.1 Flashcards
Organisms that can “produce” their own food.
Autotrophs
Organisms that “consume” other organisms (living or dead).
Heterotrophs
A light absorbing pigment found in chloroplasts of plants, algae, and blue green bacteria.
Chlorophyll
Found mainly in the mesophyll layer of ground tissue in plant leaves.
Chlorophyll
Thylakoid, Grana, Stroma
Chloroplast#structure#
Little green discs that contain the pigment chlorophyll found inside the chloroplast.
Thylakoid
Site of the light reaction of photosynthesis. It’s primary purpose is to make ATP and NADPH
Thylakoid
a stack of thylakoids
Grana
watery space surrounding the thylakoids and use ATP and NADPH to make sugars using CO2.
Stroma
Photosynthesis Chemical Reaction
- Starts by taking sunlight energy and converting it into chemical energy (ATP & NADPH)
- Then takes the chemical E (ATP and NADPH) and uses that chemical energy to power the production of sugar
Photosynthesis Equation
6CO2+6H2O –> C6H12O6+6O2+Heat
Two processes involved in the conversion of sunlight energy to sugar
Light reaction and Calvin cycle
light independent reaction–Makes sugar using CO2, ATP, and NADPH
Calvin cycle
light dependent-It changes sunlight into ATP and NADPH (Usable chemical energy)
Light reaction
Sunlight travels through ___ with different _____.
waves, wavelengths
longest wavelength
Red light
shortest wavelength
Blue light
measures light wavelengths not absorbed by a specimen
Spectrophotometer
shows all the Wavelengths/colors found in sunlight
electromagnetic spectrum
Light travels in units of Energy called
Photons
hese colors are usable light-Plants use Reds and Blues; but not green
Absorbed
Main pigment found in all plants and algae.
Chlorophyll A
Helps Chlorophyll A receive sunlight E
Chlorophyll B
These are accessory pigments that help Chlorophyll A - these are orange or yellow pigments
Carotenoids
group of light absorbing pigments in thylakoid membrane
Photosystem
These colors are not usable
Reflection
Happens in cytoplasm. Everything that has cytoplasm can go through this process.
Glycolysis
Creates/Provides electron carriers
Kreb’s Cycle
In this process electrons move two at a time toward oxygen
ETC - the electrons move down the ETC too
The final electron acceptor in ETC
Oxygen
Electron carriers
NADH & FADH2
