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Transcript of Sign in Fill in photosynthesis concept map Review book Chapter 6 Chemistry, Cellular Respiration,...
![Page 1: Sign in Fill in photosynthesis concept map Review book Chapter 6 Chemistry, Cellular Respiration, and Photosynthesis Review.](https://reader036.fdocuments.us/reader036/viewer/2022081513/56649f315503460f94c4bd82/html5/thumbnails/1.jpg)
Sign in
Fill in photosynthesis concept map
Review book Chapter 6
Chemistry, Cellular Respiration, and Photosynthesis Review
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• A-light• B—glucose• C--light reaction• D and E—Chrorophyll and chloroplast• F—Electrons from water• G—Energy transfer• H--Chemiosmosis• I—NADPH• J—ATP• K—Calvin Cycle• L—made into PGA• M—RuBp• N—Glucose
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The 20 Amino Acids of Proteins
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The 20 Amino Acids of Proteins (cont.)
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2nd structure
of a protein
H-bonds
R groups are NOT
involved in H-bonds
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Proteins• Amino acids
bond together covalently by peptide bonds to form the polypeptide chain.– Dehydration
synthesis
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Questions 1-4A. Protein
B. Carbohydrate
C. Nucleic acid
D. Lipids
E. Steroids
#1—Synthesized at the ribosome
#2—Includes glycogen, chitin, cellulose, and glucose
#3– Used for insulation and buoyancy in marine Arctic animals
#4—Used to carry the genetic code
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Questions 1-4A. Protein
B. Carbohydrate
C. Nucleic acid
D. Lipids
E. Steroids
#1—Synthesized at the ribosome A
#2—Includes glycogen, chitin, cellulose, and glucose B
#3– Used for insulation and buoyancy in marine Arctic animals D
#4—Used to carry the genetic code C
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Water Short Answer
• The unique properties (characteristics) of water make life possible on Earth. Select three properties of water and:
a) for each property, identify and define the
property and explain it in terms of the physical/chemical nature of water.
b) for each property, describe one example of how the property affects the functioning of living organisms.
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The polarity of water molecules results in hydrogen bonding
• The polarity of water molecules– Allows them to form hydrogen bonds with each other– Contributes to the various properties water exhibits
Hydrogenbonds
+
+
H
H+
+
–
–
– –
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Four emergent properties of water contribute to Earth’s fitness for life
1. Cohesion
2. Moderation of Temperature
3. Insulation of bodies of water by floating ice
4. The solvent of life (universal solvent)
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Question 5: Which of the following is responsible for the cohesive property of water?
(A) Hydrogen bonds between the oxygen atoms of two adjacent water molecules
(B) Covalent bonds between the hydrogen atom of two adjacent water molecules
(C) Hydrogen bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule
(D) Covalent bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule
(E) Hydrogen bonds between water molecules and other types of molecules
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Question 5: Which of the following is responsible for the cohesive property of water?
(A) Hydrogen bonds between the oxygen atoms of two adjacent water molecules
(B) Covalent bonds between the hydrogen atom of two adjacent water molecules
(C) Hydrogen bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule
(D) Covalent bonds between the oxygen atom of one water molecule and a hydrogen atom of another water molecule
(E) Hydrogen bonds between water molecules and other types of molecules
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ATP--ADP
• PHOSPHORYLATION... adding a phosphate to ADP ADP + P ------> ATP
• ATP holds more energy than ADP
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OIL RIG
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pyruvate acetyl CoA + CO2
Oxidation of pyruvate
NAD
3C 2C 1C[2x ]• Pyruvate enters mitochondrial matrix
– 3 step oxidation process
– releases 2 CO2 (count the carbons!)
– reduces 2 NAD 2 NADH (moves e-)
– produces 2 acetyl CoA
• Acetyl CoA enters Krebs cycle
Wheredoes theCO2 go?Exhale!
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Pyruvate oxidized to Acetyl CoA
Yield = 2C sugar + NADH + CO2
reduction
oxidation
Coenzyme APyruvate
Acetyl CoA
C-C-CC-CCO2
NAD+
2 x [ ]
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So we fully oxidized glucose
C6H12O6
CO2
& ended up with 4 ATP!
Whassup?
What’s the point?
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Value of Krebs cycle?
• If the yield is only 2 ATP then how was the Krebs cycle an adaptation?– value of NADH & FADH2
• electron carriers & H carriers– reduced molecules move electrons
– reduced molecules move H+ ions
• to be used in the Electron Transport Chain
like $$in the bank
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2005-2006AP Biology
Electron Transport Chain
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• ATP synthase enzyme– H+ flows through it
• conformational changes• bond Pi to ADP to make
ATP
– set up a H+ gradient• allow the H+ to flow
down concentration gradient through ATP synthase
• ADP + Pi ATP H+
H+H+
H+
H+ H+
H+H+H+
ATP
ADP P+
But… How is the proton (H+) gradient formed?
And how do we do that?
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Which kind of metabolic poison would most directly interfere with glycolysis? (A)an agent that reacts with oxygen and depletes its concentration in the cell(B)an agent that closely mimics the structure of glucose but is not metabolized(C)an agent that reacts with NADH and oxidizes it to NAD+(D)an agent that blocks the passage of electrons along the electron transport chain
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Photosynthesis
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Chloroplast
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The chemical reaction for photosynthesis is 6 CO2 + 12 H2O + light energy → C6H12O6 + 6 O2 + 6 H2O If the input water is labeled with a radioactive isotope of oxygen, 18O, then the oxygen gas released as the reaction proceeds is also labeled with 18O. Which of the following is the most likely explanation? •During the light reactions of photosynthesis, water is split, the hydrogen atoms combine with the CO2, and oxygen gas is released.•During the light reactions of photosynthesis, water is split, removing electrons and protons, and oxygen gas is released.•During the Calvin cycle, water is split, regenerating NADPH from NADP+, and oxygen gas is released.•During the Calvin cycle, water is split, the hydrogen atoms are added to intermediates of sugar synthesis, and oxygen gas is released.