Cellular respiration

0.0(0)
learnLearn
examPractice Test
spaced repetitionSpaced Repetition
heart puzzleMatch
flashcardsFlashcards
Card Sorting

1/56

encourage image

There's no tags or description

Looks like no tags are added yet.

Study Analytics
Name
Mastery
Learn
Test
Matching
Spaced

No study sessions yet.

57 Terms

1
New cards

cellular respiration

the process in which cells make ATP by breaking down organic compounds

2
New cards

photosynthesis

the process in which autotrophs convert light energy into chemical energy

3
New cards

which types of organisms undergo cellular respiration

both autotrophs and heterotrophs

4
New cards

what happens when organic compounds are broken down into simpler compounds

energy is released

5
New cards

what is the energy released by the organic compound mostly used to do

produce ATP

6
New cards

the products of cellular respiration (3)

CO2, water, and ATP

7
New cards

two stages of cellular respiration

glycolysis and aerobic respiration

8
New cards

glycolysis

a biochemical pathway in which one six-carbon molecule of glucose is oxidized to produce two three-carbon molecules of pyruvic acid

9
New cards

how photosynthesis and cellular respiration depend on each other

the products of photosynthesis are the reactants of cellular respiration, and the reactants of photosynthesis are the products of cellular respiration

10
New cards

anaerobic

does not require the presence of oxygen

11
New cards

aerobic respiration

pyruvic acid is broken down and NADH is used to make lots of ATP

12
New cards

what pyruvic acid undergoes with no oxygen present

fermentation

13
New cards

fermentation

the breakdown of pyruvic acid by enzymes, bacteria, yeasts, or mold in the absence of oxygen

14
New cards

type of reaction in cellular respiration

redox

15
New cards

redox reaction

one reactant loses electrons and another gains electrons

16
New cards

cellular respiration equation

C6H12O6+6O2---> 6CO2+6H2O+ATP

17
New cards

where the reactions of glycolysis take place

cytosol

18
New cards

step one glycolysis

two phosphate groups are attached to one molecule of glucose, ATP converted to ADP

19
New cards

step two glycolysis

6-carbon molecule split into two 3-carbon molecules of G3P

20
New cards

step three glycolysis

G3P molecules lose electrons and receive another phosphate group, two molecules of NAD+ converted into NADH

21
New cards

step four glycolysis

all phosphate groups are removed from the molecule to make two molecules of pyruvic acid, the four released phosphates convert four ADP to four ATP

22
New cards

net yield of ATP in glycolysis

2 ATP

23
New cards

total ATP produced in glycolysis

4 ATP

24
New cards

how many NADH molecules produced in glycolysis

2 NADH

25
New cards

how NAD+ becomes NADH

electrons released through glycolysis attach to NAD+

26
New cards

where pyruvic acid goes if there's no oxygen

fermentation

27
New cards

what fermentation regenerates

NAD+

28
New cards

what fermentation does not produce

ATP

29
New cards

how various fermentation pathways differ (2)

enzymes and products

30
New cards

the two common fermentation pathways products

lactic acid and ethyl alcohol

31
New cards

lactic acid fermentation

pyruvic acid is converted into lactic acid

32
New cards

what is used to make lactic acid

one hydrogen atom from NADH and one free hydrogen proton

33
New cards

what happens to NADH in lactic acid fermentation

it is oxidized and converted to NAD+

34
New cards

type of reaction that occurs in muscles during strenuous exercise

lactic acid fermentation

35
New cards

organ where lactic acid is converted back into pyruvic acid

liver

36
New cards

the liver

where lactic acid is converted back into pyruvic acid

37
New cards

how many carbons in lactic acid

3

38
New cards

alcoholic fermentation

pyruvic acid is converted into ethyl alcohol

39
New cards

organisms that use alcoholic fermentation

plant cells and unicellular organisms

40
New cards

process of alcoholic fermentation (2 steps)

CO2 is removed from pyruvic acid, two hydrogen atoms added

41
New cards

what is regenerated in alcoholic fermentation

NAD+

42
New cards

one kilocalorie=? calories

1000

43
New cards

efficiency of glycolysis=

energy required to make ATP/energy released by oxidation of glucose

44
New cards

where pyruvic acid goes when oxygen is available

aerobic respiration

45
New cards

aerobic respiration produces ?x as much ATP as glycolysis

20

46
New cards

two stages of aerobic respiration

the Krebs cycle and the electron transport chain

47
New cards

chemiosmosis

process by which ATP is made using the energy released as protons move across a memrbrane

48
New cards

as glucose is oxidized NAD+ is...

converted into NADH

49
New cards

the Krebs cycle, function

breaks down acetyl CoA

50
New cards

where the Krebs cycle takes place (eukaryotes)

the mitochondria

51
New cards

where the Krebs cycle takes place (prokaryotic)

None

52
New cards

mitochondrial matrix

the space inside the inner and outer membranes of a mitochondrion

53
New cards

what the mitochondrial matrix contains

enzymes to catalyze the reactions of the Krebs cycle

54
New cards

in the mitochondrial matrix, pyruvic acid reacts with ? to form ?, and releases a ?

CoA, acetyl CoA, CO2 molecule

55
New cards

products of the Krebs cycle (3)

CO2, hydrogen atoms, and ATP

56
New cards

final electron acceptor of ETC

oxygen

57
New cards

efficiency of cellular respiration=

energy required to make ATP/energy released by oxidation of glucose