BIO 1320 Farr Test 3

76 cards

Bio Test 3


 
  
Created Nov 8, 2011
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mm2158

 

 
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1
not a common energy carrier in the cell
 
ADP
2
Why are enzymes important?
 
because they allow reactions to occur at body temperature
3
The hydrolysis of sucrose to glucose and fructose is a spontaneous reaction. However, if...
 
The reaction requires a catalyst.
4
A "high-energy" bond in an ATP molecule is located between
 
two phosphate groups
5
What is the ultimate source of energy for most forms of life on Earth?
 
solar energy
6
All the following statements pertaining to catalysts are true EXCEPT
 
catalysts increase activation energy requirements.
7
Energy is transferred from one location to another in the cell
 
in the form of ATP
in electrons in an electron carrying molecule
8
FAD is an example of
 
an electron carrier
9
Most reactions in the body occur too slowly to sustain life. This is because
 
many reactions require large inputs of activation energy
10
Imagine a plant in your garden doesn't receive an adequate amount of water. Which of the...
 
both the light dependent and light independent reactions of photosynthesis
11
The primary function of the light reactions of photosynthesis is
 
to produce energy-rich ATP and NADPH
12
Water is required during which of the following reactions?
 
during the light-dependent reactions only
13
All of the following are part of the Calvin-Benson cycle EXCEPT
 
generation of ATP
14
During the process of photosynthesis, solar energy is converted into
 
chemical energy
15
Albino corn has no chlorophyll. You would expect these seedlings to
 
fail to thrive.
16
During photosynthesis when is CO2 is utilized?
 
during the light-independent reactions only
17
All of the following compounds are required (i.e., are necessary constituents for chemical...
 
oxygen.
18
NADPH is synthesized during which of the following reactions?
 
during the light-dependent reactions only
19
ATP is required during which of the following reactions?
 
during the light-independent reactions only
20
When water supplies are plentiful for the plant
 
the stomata remain open
CO2 uptake will increase
21
The majority of the leaf's chloroplasts are found in what cells?
 
mesophyll cells
22
The NADPH required for carbon dioxide fixation is formed
 
during the light reactions.
23
A pigment that absorbs red and blue light and reflects green light is
 
chlorophyll
24
What happens to CO2 when it moves into the stroma?
 
It becomes a carbohydrate.
25
Where does the O2 released during photosynthesis come from?
 
H2O
26
What molecules are required for the C3 cycle?
 
NADPH,
CO2ATPRuBP enzyme
27
Imagine a scientist discovers a mutant plant seedling that appears to lack stomata. What would...
 
CO2 would not be able to enter as a reactant for photosynthesis.
28
Glucose synthesis requires which of the following?
 
Products of energy-capturing reactions must be available.
29
Enzymes are required during which of the following reactions?
 
during both light dependent and independent reactions
30
Carbon dioxide is required in the light-dependent reaction
 
False
31
Imagine you are conducting a photosynthesis experiment on a plant in the lab. You block...
 
The light dependent reactions are needed to generate the energy required to make glucose.
32
Before photosynthesis evolved, ________ was rare in Earth's atmosphere
 
O2
33
Energy is passed around different chlorophyll molecules until it reaches a specific chlorophyll...
 
reaction center.
34
The light-dependent reactions of photosynthesis result in which of the following?
 
phosphorylation of ADP
35
Light-dependent photosynthetic reactions produce
 
ATP, NADPH, O2
36
Glucose is made during which reactions
 
light-independent reactions only
37
The products of photosynthesis are
 
glucose and oxygen
38
The term "cycle" is used to describe the light-independent reactions (Calvin-Benson cycle)...
 
the process begins and ends with RuBP.
39
Suppose you are studying photosynthesis in a research lab. You grow your plants in a chamber...
 
oxygen
40
The electron transport chain receives electrons directly from
 
NADH
FADH2
41
During glycolysis, what is the net gain of ATP molecules produced?
 
2
42
considered a waste product of cellular respiration
 
Carbon dioxide
43
What is the significance of the conversion of pyruvic acid to lactic acid during fermentation?
 
NAD+ is regenerated for use in glycolysis
44
Both plants and animals perform
 
fermentation
glycolysis.
Krebs cycle.
45
As a biker pumps up a hill to the finish line of a race, his leg muscles are most likely
 
using lactic acid fermentation for ATP production.
46
What is the final electron acceptor in cellular respiration
 
oxygen
47
In order to be able to continue, each turn of the Krebs cycle must regenerate
 
citrate
48
How many CO2 molecules are generated from each pyruvate that enters the mitochondria?
 
1
49
The end product of glycolysis is
 
the starting point for the fermentation pathway.pyruvate
50
The anaerobic breakdown of glucose is called
 
fermentation.
51
The products of the Krebs cycle include
 
energy carriers.ATPcarbon dioxide
52
In the matrix reactions, what happens to the original carbons in pyruvic acid?
 
hey are incorporated into molecules of NADH and FADH2.
53
During which part of aerobic respiration is the oxygen actually used
 
electron transport system
54
In the matrix, oxygen combines with ________ to form ________.
 
electrons and hydrogen ions; water
55
Which of the following is an example of an electron carrier molecule?
 
NADH
56
synthesized within mitochondriathe cell's principle compound for energy transfersa short-term,...
 
ATP
57
In human cells (muscle cells) the fermentation process produces
 
lactic acid
58
What results if glucose is metabolized under completely anaerobic conditions
 
Pyruvic acid is converted by fermentation into CO2 and ethanol or lactic acid
59
The products of glycolysis are
 
ATP, NADH, pyruvate
60
Where does the synthesis of pyruvic acid occur during glycolysis?
 
fluid portion of the cytoplasm
61
How does one account for the bubbles that "tickle your nose" when one drinks a glass of champagne?
 
The champagne was bottled while the yeast were still alive and fermenting, so bubbles of CO2...
62
At the end of glycolysis, the original carbons of the glucose molecule form
 
two molecules of pyruvic acid
63
Which of the following processes require(s) oxygen directly
 
ElectronTransportSystem
64
Where does fermentation occur within a cell undergoing anaerobic metabolism of glucose?
 
fluid portion of the cytoplasm
65
The metabolic breakdown of one molecule of glucose harvests the greatest amount of energy during...
 
electron transport
66
In vertebrate animal cells, where does the synthesis of lactic acid occur
 
fluid portion of the cytoplasm
67
Why do you breathe more heavily during exercise?
 
because your cells are producing more CO2because your cells need more O2
68
For bacteria to continue growing rapidly when they are shifted from an environment containing...
 
increase the rate of glycolytic reactions
69
During cell respiration, the pyruvate produced in glycolysis is
 
broken down to CO2 and water
transported to the mitochondria
converted to...
70
After fermentation, lactic acid is converted to pyruvic acid in the
 
liver
71
Oxygen is necessary for cellular respiration because oxygen
 
combines with electrons and hydrogen ions to form water.
72
If ATP is made in the mitochondria, how does it provide energy for reactions in the cytoplasm...
 
ATP diffuses out of the mitochondria into the cytoplasm.
73
How do fatigued human muscle cells repay an "oxygen debt"?
 
Lactic acid is converted back into pyruvic acid by the cells.
74
When oxygen is present
 
most cells utilize aerobic cellular respiration.
75
During the fermentation of one molecule of glucose, the net production of ATP is
 
two molecules.
76
During which of the following processes is CO2 produced?
 
Krebs cycle


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