Photosynthesis / Respiration

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Biology

11th

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31 Terms

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ATP
ADP+Pi; energy caring molecule
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Respiration
Several different interlinked metabolic pathways that control the release of energy from organic compounds in cells to form ATP
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Matrix
The inside squiggly space of the mitochondria
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Outer mitochondrial membrane
The membrane on the very outside of the mitochondria
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Inner membrane
The membrane closest to the matrix
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Cristae
The folds of the matrix
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Small inner membrane Space
The space in between the matrix and the outer membrane
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70S Ribosomes
The units of Ribosomes inside the matrix-same as bacteria…Endosymbiotic theory?
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ADP
Lower energy version of ATP
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NADP
Lower energy kidnappers. Grab electrons and Hydrogen and use them
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NADPH
Higher energy version of NADP, holds 2 electrons
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Glycolysis
The first stage of respiration, literally means “sugar splitting” Glucose goes in, 2 pyruvate comes out (net yield +2 ATP), occurs in cytoplasm
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Link Reaction (🗡 haaup!)
2nd phase of resperation. Occurs in matrix of mitochondria

1) Pyruvate goes in

2) add CoA (enzyme)

3) Acetyl CoA comes out

CO2 from pyruvate becomes waste product, NAD=>NADH takes Hydrogen
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Fun fact!
The feeling of suffocation comes from brain noticing too much CO2 instead of the lack of Oxygen
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Kreb’s Cycle
Third phase of respiration happens in the matrix.

1) Acetyl CoA comes in

2) Molecules are combined and broken apart in different ways to yield most energy

3) CoA comes out 🏳️‍🌈 and goes back into link

Net yield: 2 ATP, 6 NADH+H, 2 FADH2

2 CO2 waste
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Electron Transport Chain
The fourth phase of respiration happening in the inner membrane. Child Labor Camp

1) NADH and FADH2 drops off electrons and H and goes back to Kreb+Link

2) electron and Hydrogen goes through membrane via proteins

3) Electrons stay in the Membrane and provides energy to the other proteins.

4) The hydrogen on the other side of the membrane is sad because they’re in high concentration soooo:

5) Chemosmosis
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Chemosmosis
Last step of ETC. When the Hydrogens move through the inner membrane inyo the matrix from high concentration to low concentration. Go through ATP Synthase
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ATP Synthese
Enzyme that allows H to go through chemiosmosis
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2H2O
When the Hydrogen that comes through ATP Synthase it’s mopped up and makes water 💦
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Sir Hans Krebs
Sir Hans Krebs
(1900-1981) was a distinguished biochemist who received the Nobel Prize in physiology or medicine in 1953 for his discovery of the tricarboxylic acid cycle—the "Krebs cycle."
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Photosynthesis
Metabolic pathway that uses CO2 and H2O to produce carbohydrates-O2 is then released as a waste product. Endothermic process
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Chlorophyll
Makes plants green with pigment, absorbs wavelengths of light 🌱
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Types of light plants absorb
Red, Blue, Purple NOT green
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Light intensity, CO2 concentration, and Temp
Factors that affect the rate of photosynthesis
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Light Dependent Reaction
It happens in Thylakoid Membrane. The First stage of Photosynthesis

1) Light hits PS2 electrons are passed down. H2O splits and leftover elections go into PS2

2) Photon gives energy to electrons

3) Proton Pump pumps in H

4) Light hits PS1 and gives more energy to electrons

5) NADP kidnaps electrons

6) ATP Synthase pumps hydrogen from step 3 out and ATP is created
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Calvin Cycle
Happens in the stroma. Biochemical pathway that allows carbon fixation.

NADPH, ATP, and CO2 go in.

MAKES ADP, NADP, and Sugar
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Thylakoid membrane
Internal membrane arranged in flattened sacs, has chlorophyll and other pigments
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Grana
Sacks of thylakoid membranes
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Stroma
Semi liquid substance surrounding thylakoid membranes
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Dr. Melvin Calvin
Dr. Melvin Calvin
The white man American biochemist that first identified the Calvin Cycle in 1957.
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Energy (ATP from light dependent reactions), Reduction Potential (NADPH fro PS1)
To build Carbohydrates, cells need