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Biology 120 > Respiration and Photosynthesis > Flashcards

Respiration and Photosynthesis Flashcards

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1
Q

If the products have more energy than reactants….

A

Then energy must be supplied

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2
Q

If the products have less energy than reactants…

A

Then energy must be released

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3
Q

Activation Energy

A

The energy must be processed by a molecule in order for it to undergo a chemical reaction

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4
Q

Catalysts (lower/increase) activation energy

A

Lower

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5
Q

Active Site

A

The region of an enzyme surface to which a specific set of substrates bind

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6
Q

Why don’t reactions go out of control?

A

Feedback Inhibition

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7
Q

Feedback Inhibition

A

The control mechanism; an increase in the concentration of the same molecule inhibits the synthesis of that molecule

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8
Q

ATP is made in the….

A

Mitochondria/Chloroplasts

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9
Q

Simple Sugar

3-6 carbons

A

Monosaccharides

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10
Q

Simple Sugar

Transport Molecules

A

Disaccharides

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11
Q

Lactase Enzyme Inefficiency

A

Lactose Intolerance

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12
Q

Storage/Structural Molecules

A

Polysacchardies

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13
Q

Long term energy storage

A

lower water content

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14
Q

How are polysaccharides stored in plants?

A

Starch

Cellulose

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15
Q

How are polysaccharides stored in animals?

A

Glycogen

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16
Q

Structural
Plant cell walls
Most organisms cant break the beta bond (symbiotic gut bacteria)

A

Cellulose

17
Q

Structural
Modified form of Cellulose
Used by arthropods (insects, crustaceans) and fungi

A

Chitin

18
Q

_____ goes through Cellular Respiration

A

Hetertrophs

19
Q

Complete oxidation of glucose to extract energy from chemical bonds

A

Cellular Respiration

20
Q

Loses electrons

A

Oxidized

21
Q

Accepts/Gains electrons

A

Reduced

22
Q

Paired rxn in living systems; an electron is lost by one atom are gained by another atom

A

Redox Rxns

23
Q

Another name for Redox Rxns

A

Oxidative-Reduction Rxns

24
Q

Used by cells to take energy (ATP) from food

Facilitated by enzymes

A

Redox Rxns

25
Q

Stages of Redox Rxns

A
  1. high energy bonds are broken
  2. electrons move to lower energy states
  3. final election acceptor
  4. energy released to make ATP
26
Q

Aerobic Respiration

A

With oxygen

27
Q

Anaerobic Respiration

A

Without oxygen

28
Q

Fermentation

A

Organic Molecules

29
Q
  1. Substrate Level Phosphorylation

2. Oxidative Phosphorylation

A

Forms ATP Synthesis

30
Q

What’s involved in cellular respiration?

A
  1. Glucose 6 Carbon Sugar (stores energy)
  2. NADH, FADH2 (carries electrons, temp storage)
  3. ATP
31
Q

Stages of Cellular Respiration

A
  1. Glycolysis
  2. Pyruvate Oxidation
  3. Krebs Cycle
  4. Electron Transport Chain/Chemiosmosis

Biology 120 (3 decks)

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