Chapter 7: Cellular Respiration, Part 1 Flashcards Preview

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Flashcards in Chapter 7: Cellular Respiration, Part 1 Deck (11):
1

collection of metabolic reactions that breaks down food molecules to produce energy in the form of ATP

cellular respiration

2

-form of cellular respiration in eukaryotes and many prokaryotes
-Oxygen is a reactant in the ATP producing process

aerobic respiration

3

-form of cellular respiration in some prokaryotes
-a molecule other than oxygen, such as sulfate or nitrate, is used in the ATP-producing process

anaerobic respiration

4

animals, plants, fungi, and most protists depend on mitochondria for energy to grow and survive

mitochondrion

5

-the removal of electrons from a substance
-the substance from which the electrons are removed is oxidized

oxidation

6

-the addition of electrons to a substance
-the substance that receives the electrons is reduced

reduction

7

reactions that remove electrons from a donor molecule and simultaneously add them to an acceptor molecule

redox reactions

8

-enzymes break a 6-carbon molecule of glucose into two 3-carbon molecules of pyruvate
-some ATP is synthesized by substrate-level phosphorylation

1. glycolysis

9

an enzyme catalyzed reaction tha transfers a phosphate group from a substrate to ADP

2. substrate-level phosphorylation

10

-enzymes convert the 3-carbon pyruvate into a 2-carbon acetyle group, which enters the citric acid cycle and is completely oxidized to carbon dioxide
-some ATP is synthesized during the citric acid cycle

3. pyruvate oxidation

11

-high energy electrons are delivered to oxygen by a sequence of electron carriers in the electron transfer system
-free energy released by electron glow generates an H+ gradient by chemiosmosis
-ATP synthase uses the H+ gradient as the energy source to make ATP

4. oxidative phosphorylation