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Honors Bio > 7.4 > Flashcards

7.4 Flashcards

1
Q

What is the first stage of cellular respiration?

A

Glycolysis

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2
Q

What is the second stage of cellular respiration?

A

Krebs Cycle

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3
Q

What is the third stage of cellular respiration?

A

Electron Transport Chain

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4
Q

What are the inputs of glycolysis?

A
  • Glucose
  • 2 NAD+
  • 2 ATP
  • 4 ADP
  • 4 Pi
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5
Q

What are the outputs of glycolysis?

A
  • 2 Pyruvate
  • 2 NADH
  • 4 ATP (net gain 2 ATP)
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6
Q

What are the inputs of the Krebs Cycle?

A
  • Acetyl-CoA
  • 3 NAD+
  • FAD
  • GDP
  • Pi
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7
Q

What are the outputs of the Krebs Cycle?

A
  • 2 CO2
  • 3 NADH
  • FADH2
  • GTP (or ATP)
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8
Q

What are the inputs of the Electron Transport Chain?

A
  • NADH
  • FADH2
  • O2
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9
Q

What are the outputs of the Electron Transport Chain?

A
  • ATP
  • H2O
  • NAD+
  • FAD
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10
Q

Where does glycolysis occur?

A

Cytoplasm

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11
Q

Where does the Krebs Cycle occur?

A

Mitochondrial matrix

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12
Q

Where does the Electron Transport Chain occur?

A

Inner mitochondrial membrane

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13
Q

What is the overall chemical equation for cellular respiration?

A

C6H12O6 + 6 O2 → 6 CO2 + 6 H2O + ATP

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14
Q

What is ATP?

A

Adenosine triphosphate, the energy currency of the cell

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15
Q

What process generates ATP in the presence of oxygen?

A

Aerobic respiration

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16
Q

What process generates ATP in the absence of oxygen?

A

Anaerobic respiration or fermentation

17
Q

What are the main products of aerobic respiration?

A

ATP, carbon dioxide, and water

18
Q

What are the main products of anaerobic respiration?

A

ATP and lactic acid or ethanol

19
Q

Fill in the blank: Aerobic respiration occurs in the _______.

A

mitochondria

20
Q

Fill in the blank: Anaerobic respiration occurs in the _______.

A

cytoplasm

21
Q

True or False: Aerobic respiration is more efficient than anaerobic respiration.

A

True

22
Q

How many ATP molecules are produced per glucose molecule during aerobic respiration?

A

Approximately 30-32 ATP molecules

23
Q

How many ATP molecules are produced per glucose molecule during anaerobic respiration?

A

Approximately 2 ATP molecules

24
Q

What is the role of oxygen in aerobic respiration?

A

Oxygen acts as the final electron acceptor in the electron transport chain

25
Q

What is a byproduct of anaerobic respiration in muscle cells?

A

Lactic acid

26
Q

What is a byproduct of anaerobic respiration in yeast?

A

Ethanol and carbon dioxide

27
Q

Fill in the blank: The Krebs cycle occurs during _______ respiration.

A

aerobic

28
Q

What is glycolysis?

A

The process that breaks down glucose to produce ATP, occurring in both aerobic and anaerobic respiration

29
Q

True or False: Fermentation is a type of anaerobic respiration.

A

True

Honors Bio (24 decks)

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