cell respiration learning check slowly, press go and hold 2 seconds press 4 and hold 2 seconds press...
TRANSCRIPT
Cell RespirationLearning Check
Slowly,
• Press Go and hold 2 seconds• Press 4 and hold 2 seconds• Press 1 and hold 2 seconds• Press go and hold 2 seconds
• You should NOT have a blinking red or orange light now. Call me if you do
• Once fixed, don’t hit go again.
Test clickers
• Hit #1 when called
Press # 1 when your name is called
A. 1
B. Don’t press it
1
Don’t pre
ss it
0%0%
10
1 What is meant by anaerobic respiration? Making ATP using energy of food…
A. Using O2
B. Not using O2
Using O
2
Not usin
g O2
93%
7%
Definition Anaerobic
An - without
-aerobic - oxygen (O2)
2 How many ATP does glycolysis produce per glucose?
A. 2 ATP
B. 4 ATP
C. 30 ATP
D. More than 30 ATP
2 ATP4 ATP
30 ATP
More th
an 30 ATP
57%
43%
0%0%
Kreb’s cycle
Load electrons onto carriers during Glycolysis & Kreb’s
cycle
EMPTY electron carriers during electron transport chain to allow repeated rounds of Glycolysis & Kreb’s cycle
3 Which is a final product in anaerobic respiration in humans & bacteria?
A. Pyruvic Acid
B. Alcohol
C. Lactic Acid
D. Acetyl Co A
Pyruvic
Acid
Alcohol
Lacti
c Acid
Acety
l Co A
0%
14%
79%
7%
What if oxygen is missing?• No O2 available = can’t carry out Kreb’s
cycle or electron transport• Anaerobic respiration
– =glycolysis followed by fermentation• alcohol fermentation-yeasts• lactic acid fermentation-bacteria
& skeletal muscle– Cells must survive on 2 ATP/gluocse
produced during Glycolysis– Repeating cycles of glycolysis &
fermentation
– large animals cannot survive
O2
yeast
bacteria
Anaerobic Respiration• Fermentation
– alcohol fermentation• yeast
– glucose ATP + CO2+ alcohol
– make beer, wine, bread
– lactic acid fermentation• bacteria, animals
– glucose ATP + lactic acid– bacteria make yogurt– animals feel muscle fatigue
O2
Tastes good…but not enoughenergy for me!
Fermentation does NOT produce ATP!It regenerates glycolysis’s reactant NAD+ so that glycolysis can be repeated again & again while conditions are anaerobic.
4 Which of the following steps produces the most ATP?
A. Glycolysis
B. Lactic Acid Fermentation
C. Krebs Cycle
D. Electron Transport Chain
E. Alcoholic fermentation Glyco
lysis
Lacti
c Acid
Ferm
entation
Krebs C
ycle
Electron Transp
ort Chain
Alcoholic
ferm
entation
0% 0% 0%
92%
8%
Kreb’s cycle
Load electrons onto carriers during Glycolysis & Kreb’s
cycle
EMPTY electron carriers during electron transport chain to allow repeated rounds of Glycolysis & Kreb’s cycle
5 Which is a final product in anaerobic respiration in one-celled fungi called yeasts?
A. Pyruvic acid
B. alcohol
C. Lactic acid
D. Acetyl coA
E. NADH
Pyruvic
acid
alcohol
Lacti
c acid
Acety
l coA
NADH
7%
71%
7%0%
14%
Anaerobic Respiration• Fermentation
– alcohol fermentation• yeast
– glucose ATP + CO2+ alcohol
– make beer, wine, bread
– lactic acid fermentation• bacteria, animals
– glucose ATP + lactic acid– bacteria make yogurt– animals feel muscle fatigue
O2
Tastes good…but not enoughenergy for me!
Fermentation does NOT produce ATP!It regenerates glycolysis’s reactant NAD+ so that glycolysis can be repeated again & again while conditions are anaerobic.
6 Which best describes when fermentation
occurs in cell respiration?
A. Before glycolysis in absence of O2
B. After glycolysis in presence of O2
C. After glycolysis in absence of O2
D. After Kreb’s cycle with O2 absent
E. After Kreb’s cycle with O2 present
F. After electron transport chain with O2 absent
G. After electron transport chain with O2 present
Before glyc
olysis in
absen..
After glyco
lysis in
presen..
After glyco
lysis in
absenc..
.
After Kre
b’s cy
cle w
ith O
...
After Kre
b’s cy
cle w
ith O
...
After electr
on transp
ort ...
After electr
on transp
ort ...
7% 7%
50%
14%
7%
14%
0%
Fermentation only occurs after glycolysis when Oxygen is absent.
Fermentation allows repeated cycles of glycolysisfermentationglycolysisfermentation…
7 Plants and other autotrophs use CO2, but give off O2 , during:
A. TRANSPIRATION
B. ANAEROBIC CELL RESPIRATION
C. PHOTOSYNTHESIS
D. AEROBIC CELL RESPIRATION
E. FERMENTATION
TRANSPIRATIO
N
ANAEROBIC CELL RESPI...
PHOTOSYNTHESIS
AEROBIC CELL RESP
IRATION
FERM
ENTATIO
N
0%
15%
0%
23%
62%
Glucose C6H1206
C6H1206 + 602 6C02 + 6H20 + energy in ATP Cell respiration
6C02 + 6H20 + light energy C6H1206 + 602 Photosynthesis
8 Plants and other autotrophs use O2, but give off CO2 , during:
A. TRANSPIRATION
B. ANAEROBIC CELL RESPIRATION
C. PHOTOSYNTHESIS
D. AEROBIC CELL RESPIRATION
E. FERMENTATION
TRANSPIRATIO
N
ANAEROBIC CELL RESPI...
PHOTOSYNTHESIS
AEROBIC CELL RESP
IRATION
FERM
ENTATIO
N
0%7%
14%
79%
0%
Glucose C6H1206
C6H1206 + 602 6C02 + 6H20 + energy in ATP Cell respiration
6C02 + 6H20 + light energy C6H1206 + 602 Photosynthesis
9 WHICH ORGANELLE IS THE POWERHOUSE OF THE ANIMAL CELL?
A. VACUOLE
B. NUCLEUS
C. ENDOPLASMIC RETICULUM
D. MITOCHONDRIA
E. CHLOROPLASTS
VACUOLE
NUCLEUS
ENDOPLASM
IC RETICULUM
MITOCHONDRIA
CHLOROPLA
STS
25%
8%0%
67%
0%
Photosynthesis, synthesis of sugar
Eukaryotic organelles
11 Which process occurs in eukaryotic producers/autotrophs?
A. photosynthesis
B. Cell respiration
C. neither
D. Both
photosy
nthesis
Cell resp
iration
neither
Both
8%
69%
15%8%
Producers carry out both photosynthesis & cell respiration
Photosynthesis makes glucose, for long-term energy storage in producers
• BUT
• For ALL organisms, Cell work requires ATP as an energy source, and to make this ATP, cells carry out cell respiration convert food molecule energy into ATP energy.
12 Which process occurs in eukaryotic consumers/heterotrophs?
A. photosynthesis
B. Cell respiration
C. neither
D. Both
photosy
nthesis
Cell resp
iration
neither
Both
0% 0%
31%
69%
Producers carry out both photosynthesis & cell respiration
Photosynthesis makes glucose, for long-term energy storage in producers
• BUT
• For ALL organisms, Cell work requires ATP as an energy source, and to make this ATP, cells carry out cell respiration convert food molecule energy into ATP energy.
13 WHICH ORGANELLE IS FOUND IN A EUKARYOTIC AUTOTROPH?
A. MITOCHONDRIAN
B. CHLOROPLAST
C. NEITHER
D. Both
MITOCHONDRIA
N
CHLOROPLA
ST
NEITHER
Both
0%
71%
0%
29%
Producers carry out both photosynthesis & cell respiration
Photosynthesis makes glucose, for long-term energy storage in producers in chloroplasts
• BUT
• For ALL organisms, Cell work requires ATP as an energy source, and to make this ATP, cells carry out cell respiration convert food molecule energy into ATP energy. In mitochondria
14 CELLS NEED ENERGY PROVIDED BY ATP TO PERFORM ALL BUT WHICH OF THESE
FUNCTIONS?
A. MOVEMENT
B. GROWTH
C. REPRODUCTION
D. CHEMICAL SYNTHESIS DURING METABOLISM
E. PASSIVE TRANSPORT
F. ACTIVE TRANSPORTM
OVEMENT
GROWTH
REPRODUCTION
CHEMICAL S
YNTHES
IS DU...
PASSIVE TRANSP
ORT
ACTIVE TRANSPORT
8%
0%
17%
42%
33%
0%
Cell work is fueled by energy stored in ATP
Cell work includes– Movement– Growth and repair and reproduction– Synthesis of molecules– Active transport– Sending signals to other cells & Responding to
stimuli
Passive transport is not cell work & does not require ATP!
15 Why do cells carry out fermentation during anaerobic conditions, even though it results in
production of toxic alcohol or lactic acid?
A. Can use the toxins for food
B. Form more ATP than glycolysis alone
C. Regenerate NAD+ so glycolysis can be repeated
D. Form more NADH so electron transport can occur Can use
the to
xins for f
ood
Form
more
ATP than glyc
...
Regenerate
NAD+ so
glyc..
.
Form
more
NADH so
elec...
0%9%
55%
36%
What if oxygen is missing?• No O2 available = can’t carry out Kreb’s
cycle or electron transport• Anaerobic respiration
– =glycolysis followed by fermentation• alcohol fermentation-yeasts• lactic acid fermentation-bacteria
& skeletal muscle– Cells must survive on 2 ATP/gluocse
produced during Glycolysis– Repeating cycles of glycolysis &
fermentation
– large animals cannot survive
O2
yeast
bacteria
Anaerobic Respiration• Fermentation
– alcohol fermentation• yeast
– glucose ATP + CO2+ alcohol
– make beer, wine, bread
– lactic acid fermentation• bacteria, animals
– glucose ATP + lactic acid– bacteria make yogurt– animals feel muscle fatigue
O2
Tastes good…but not enoughenergy for me!
Fermentation does NOT produce ATP!It regenerates glycolysis’s reactant NAD+ so that glycolysis can be repeated again & again while conditions are anaerobic.
16 Which is the correct order of the phases of aerobic cell respiration?
A. Krebs, glycolysis, fermentation, electron transport
B. Glycolysis, fermentation, Krebs, electron transport
C. Electron transport, fermentation, glycolysis, Krebs
D. Glycolysis, Krebs, electron transport Kre
bs, glyc
olysis,
ferm
en...
Glycolysis
, ferm
entation,...
Electron tr
ansport,
ferm
...
Glycolysis
, Krebs,
electro...
8%
77%
0%
15%
17 Which is the correct location of the phases of cell respiration?
A. Glycolysis-cytoplasm
B. Glycolysis-mitochondrian
C. Fermentation-mitochondrian
D. Krebs cycle-cytoplasm
E. Electron transport-cytoplasm
Glycolysis
-cyto
plasm
Glycolysis
-mito
chondria
n
Ferm
entation-mito
chond...
Krebs c
ycle-cy
toplasm
Electron tr
ansport-
cyto
...
42%
50%
8%
0%0%
Kreb’s cycle
In matrix
Load electrons onto carriers during Glycolysis & Kreb’s
cycle
EMPTY electron carriers during electron transport chain to allow repeated rounds of Glycolysis & Kreb’s cycle
in cristae
18 What is the purpose of glycolysis?
1. Begin process of breaking glucose & transferring electrons to NADH
2. Make lots of ATP
3. Finish breaking down the glucose C chain, then transfer all the electrons to electron carriers
4. Extract the energy from electrons to make ATP
Begin proce
ss of b
reaking...
Make lo
ts of A
TP
Finish
breakin
g down th
e...
Extract
the energy fr
om e...
54%
15%23%
8%
only 2 ATP/glucose made
Begins breakdown of glucose & caturing of electrons onto electron carriers.
Completes capturing electrons onto electron carriers. Only 2 ATP/glucose Made.
Empties filled electron carriers to Harvest energy of the electrons into 30 or more ATP molecules + regenerate empty electron carriers for reuse.
19 What is the purpose of Kreb’s cycle?
A. Begin process of breaking glucose & transferring electrons to NADH
B. Make lots of ATP
C. Finish breaking down the glucose C chain, then transfer all the electrons to electron carriers
D. Extract the energy from electrons to make ATP Begin pro
cess
of breaking...
Make lo
ts of A
TP
Finish
breakin
g down th
e...
Extract
the energy fr
om e...
0%
17%
75%
8%
only 2 ATP/glucose made
Begins breakdown of glucose & caturing of electrons onto electron carriers.
Completes capturing electrons onto electron carriers. Only 2 ATP/glucose Made.
Empties filled electron carriers to Harvest energy of the electrons into 30 or more ATP molecules + regenerate empty electron carriers for reuse.
20 what is purpose of electron transport chain?
A. Begin process of breaking glucose & transferring electrons to NADH
B. Make small amount ATP & lots electron carriers filled up
C. Finish breaking down the glucose C chain, then transfer all the electrons to electron carriers
D. Extract the energy from electrons to make ATP
Begin proce
ss of b
reaking...
Make sm
all amount A
TP ...
Finish
breakin
g down th
e...
Extract
the energy fr
om e...
0%
67%
0%
33%
only 2 ATP/glucose made
Begins breakdown of glucose & caturing of electrons onto electron carriers.
Completes capturing electrons onto electron carriers. Only 2 ATP/glucose Made.
Empties filled electron carriers to Harvest energy of the electrons into 30 or more ATP molecules + regenerate empty electron carriers for reuse.
21 The two types of fermentation:
A. Aerobic and Alcoholic
B. Aerobic and Lactic Acid
C. Anaerobic and Aerobic
D. Lactic Acid and Alcoholic
Aerobic
and Alcoholic
Aerobic
and Lacti
c Acid
Anaerobic
and Aero
bic
Lacti
c Acid
and Alcoholic
0% 0%0%0%
What if oxygen is missing?• No O2 available = can’t carry out Kreb’s
cycle or electron transport• Anaerobic respiration
– =glycolysis followed by fermentation• alcohol fermentation-yeasts• lactic acid fermentation-bacteria
& skeletal muscle– Cells must survive on 2 ATP/gluocse
produced during Glycolysis– Repeating cycles of glycolysis &
fermentation
– large animals cannot survive
O2
yeast
bacteria
I can label this diagram with:
A. Just the steps
B. Steps and places
C. Above and amount of ATP.
D. All above and cycle of energy carriers (NADH/FADH2)
E. All above and fermentation.
F. Explain relationships for all above
Just
the st
eps
Steps and place
s
Above and amount o
f ATP.
All above an
d cycle
of en...
All above an
d ferm
entation.
Explain re
lationships f
or a..
0% 0% 0%0%0%0%
If aerobic
If NOT aerobic, only glycolysis & fermentation!
& regenerate FAD+ & NAD+ to repeat
aerobic cell respiration!