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GENERAL PHYSIOLOGY > CELL RESPIRATION > Flashcards

CELL RESPIRATION Flashcards

1
Q

4 metabolic stages of Cellular respiration

A

Anaerobic respiration
Aerobic Respiration
Pyruvate oxidation
Krebs cycle
Electron Transport Chain

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2
Q

Anaerobic respiration that occurs in cytosol

A

Glycolysis

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3
Q
  • Respiration using O2
  • occurs in mitochondria
A

Aerobic Respiration

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4
Q
  • respiration without O2
  • occurs in cytosol
A

Anaerobic Respiration

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5
Q

Organisms in the bottom of the ocean utilizes _________ to produce energy

A

Sulfur

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6
Q
  • Step-by-step breakdown of high-energy glucose molecules to release energy
  • Takes place day and night in all living cells
  • Occurs in stages controlled by enzymes
A

Cellular respiration

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7
Q

Breakdown of Cellular respiration

A

Glycolysis
Grooming phase
Krebs Cycle
Electron Transport Chain and Oxidative Phosphorylation

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8
Q
  • splitting of sugar.
  • occurs in cytosol, just outside of mitochondria
A

Glycolysis

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9
Q

migration from cytosol to matrix.

A

Grooming phase

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10
Q

mitochondrial matrix

A

Krebs Cycle (Citric Acid Cycle)

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11
Q
  • Also called Chemiosmosis
  • occurs in the inner mitochondrial membrane.
A

Electron Transport Chain (ETC)
and Oxidative Phosphorylation

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12
Q

Energy Currency of cells

A

ATP

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13
Q

contains potential energy, much like a compressed spring.

A

ATP

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14
Q

When a phosphate group is pulled away
during a chemical reaction

A

Energy is released

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15
Q

This cycle is the fundamental mode of energy exchange in biological systems.

A

ATP-ADP Cycle

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16
Q

is constantly
recycled in cells.

17
Q

A working muscle cell recycles all of its ATP
molecules about __________.

A

once each minute

18
Q

Different types of Cellular Respiration

A

Aerobic respiration
Anaerobic respiration

19
Q

– Occurs in the presence of oxygen
– When chemically breaking down glucose completely, this process releases large amounts energy
- Releasing carbon dioxide and water as waste products.

A

Aerobic respiration

20
Q
  • Occurs if there is a lack of oxygen available for aerobic respiration
  • Only Glycolysis occurs
  • Glucose is incompletely broken down
  • In this type of respiration a lot less energy is produced and most of it is lost as heat.
A

Anaerobic respiration

21
Q
  • Breaking down glucose

– ancient pathway which harvests energy
- where energy transfer first evolved
- transfer energy from organic molecules to ATP
- starting point for all cellular respiration
– inefficient
• generate only 2 ATP for every 1 glucose
– occurs in cytosol

A

Glycolysis

GENERAL PHYSIOLOGY (8 decks)

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