photosynthesis and cellular respiration

what is the photosynthesis equation?

6CO2 + 6H2O + light energy → C6H12O6 + 6O2

in photosynthesis, what captures the light energy?

chlorophyll

what enters the light dependent reactions

6H2O

what exits the light dependent reactions

6O2

what is the first step in the light dependent reaction?

excites electrons in PS11 that causes it to the PS1

where is photosynthesis located?

chloroplast

where are the light dependent reactions located

thylakoid

what is the second step to LD reactions?

light energy splitting water molecules into H ions and oxygen

what carries electrons from PS11 to PS1

electron transport chain

in photosynthesis, where is the ETC located

thylakoid (ETC)

what is the third step of the light dependent reaction?

H moves to the NADP+ receivers and gets reduced to NADPH, which gets transported to the light independent reactions

what is created as a result of the ETC in LD

ATP

what from LD goes into the LID

ATP and NADPH

where is the LID reactions located

stroma

what is the first step of LID

carbon fixation

what is the second step of LID

reduction

what is the third step of LID

regeneration of RuBP

what occurs in glycolysis?

5C turns into 6C with rubp giving 1C

6C turn into two 3C

what occurs in reduction

NADPH reduces 3C into G3P with ATP providing the energy to do so

some G3P gets turned into glucose

what occurs in regeneration of RuBP

some G3P gets used to create more RuBP that will be giving to the carbon fixation part of LID

what enters the LID reactions

6CO2

what exits the LID reactions

glucose

what is the cellular respiration equation?

C6H12O6 + 6O2 → 6CO2 + 6H2O

where does cellular respiration occur?

mitochondria

what is the first step to cell resp

glycolysis

what is the second step to cell resp

oxidation of pyruvate

what is the third step to cell resp

krebs cycle / citric acid cycle

what is the fourth step of cell resp

oxidative phosphorylation

what is fermentation?

when there’s no oxygen (anaerobic conditions), it’s how we can produce NAD+ for glycolysis

where does glycolysis occur?

cytosol

what occurs in glycolysis? (3 things)

• 6C turns into 2 pyruvate of (3C)

• 2NAD+ turns into 2NADPH

• 2 ATP is used, but 4 ATP is produced (net of 2 ATP)

what enters glycolysis?

C6H12O2 (or 6C), 2 NAD+, 2 ATP

what exits glycolysis?

2 pyruvate, 2 NADH, 4 ATP

where does pyruvate oxidation occur?

in the mitochondrial

what occurs in pyruvate oxidation?

• pyruvate gets oxidized to Acetyl CoA (2C) (hence the C in CO2 byproduct)

• one atp is produced

• one NAD+ is turned into NADH because of the oxidation

where does the krebs cycle occur?

mitochondrial matrix

what occurs in the krebs cycle?

• acetyl CoA gets added to a 4C and the now 6C which is CO2

• some redox happens here with NAD+ and FAD+ turning into NADH and FADH

• One ATP is produced

what enters pyruvate oxidation

2 pyruvate, 1 nad+

what exits pyruvate oxidation

2 Acetyl CoA, 1 nadh, CO2

what enters the krebs cycle?

2 acetyl CoA, 3 NAD+, 1 FAD+, 1 ad pi

what exits the krebs cycle?

2CO2, 3 NADH, 1 FADH2, 1ATP

where does oxidative phosphorylation occur

inner membrane of the mitochondria

what occurs in oxidative phosphorylation

• mass ATP production as electrons pass through the ETC/proton gradient

• FADH2 and NADH bring their electrons and get oxidized and turned into electron acceptors FAD+ and NAD+

• oxygen as the final electron acceptor

• creates water as the byproduct

how much atp can be produced by oxidative phosphorylation at the max

34

how does the ETC (cell resp) generate ATP

the pumping of H ions from matrix to the intermembrane against the concentration (causes the proton gradient) changes the shape of ATP synthase, allowing it to produce ATP

what enters oxidative phosphorylation

6O2, electrons from the electron carriers (NADH, FADH2),

what exits oxidative phosphorylation

ATP