1
Q
absorption spectra definition
A
graph showing wavelength of light absorbed by pigment
2
Q
action spectra definition
A
graph of the rate of photosynthesis against each wavelength of light absorbed by a pigment
3
Q
what is calvin cycle linked to
A
light dependent reactions
4
Q
chlorophyll defenition
A
photosynthetic pigment located in thylakoids of chloroplasts that absorb light energy
5
Q
how many main types of chlorophyll are there
A
2
6
Q
what are the main types of chlorophyll
A
- chlorophyll a
- chlorophyll b
7
Q
chloroplast definition
A
organelle found in plants and algae thats the site of photosynthesis
8
Q
chromatography definition
A
process of seperating different substances from a mixture
9
Q
cyclic photophosphorylation
A
formation of ATP involving photosystem 1 only
10
Q
glycerate-3-phosphate (GP) defenition
A
3 carbon molecule which is reduced by reduced NAPS in light independent stage of photosynthesis to form 2 mols of TP
requires ATP
11
Q
what does GP formation require
A
ATP
12
Q
what is a graph showing wavelength of light absorbed by pigment
A
absorption spectra
13
Q
what is a graph of the rate of photosynthesis against each wavelenght of light absorbed by a pigment
A
action spectra
14
Q
what is linked to light independent reation
A
calvin cycle
15
Q
what is a photosyntetic pigment
A
chlorophyll
16
Q
where is chlorophyll located
A
thylakoids of chloroplasts
17
Q
what is the role of chlorophyll
A
absorb light energy
18
Q
whats an organnelle found in plants + algae thats the site of photosynthesis
A
chloroplasts
19
Q
in what are chloroplasts found?
A
organelles of plants and algae
20
Q
what is the process of deperating different substances from a mixture
A
chromatography
21
Q
what is the formation of ATP involving photosystem 1 only
A
cyclic photophosphorylation
22
Q
what is a 3 carbon mol that is reduced by reduced NADP in light independent stage of photosynthesis to form two TP mols
A
Glycerate - 3 - phosphate (GP)
23
Q
how many carbon mols does GP have
A
3
24
Q
by what is GP reduced by
A
reduced by reduced NADP
25
in what stage is GP reduced
light independent stage of photosynthesis
26
what is GP reduced to
2 mols of TP
27
defenition of light-dependent reaction
first stage of photosynthesis that uses light energy to produced ATP, reduced NADP and oxygen
takes places in thylakoids of chloroplasts
28
where do light dependent reactions take place
in thylakoids of chloroplast
29
what does light depenedent reaction photosynthesis produce
ATP
reduced NADP
oxygen
30
what is the first stage of photosyntheis that uses light energy
light dependent reaction
31
defenition of light harvesting system
collection of protein and chlorophyll mols found in thylakoid membranes of chloroplasts that absorb lgith energy of varying wavelenghts and transfers reaction to center
32
what is light-harvesting system also known as
antennae complex
33
what is antennae complex also known as
light-harvesting system
34
what does light harvesting system contain
collection of protein and chlorophyll molecules
35
where is light harvesting system found
in thylakoid membranes of chloroplasts
36
what does light harvesting system do
absorbs light energy of varying wavelenghts and transfers it to the reaction center
37
where does light harvesting system transfer energy
to reaction center
38
whats the first stage of photosynthesis
light dependent
39
whats the second stage of photosynthesis
light independent reaction
40
how many stages of photosynthesis are there
2
41
whats the 2nd stage of photosynthesis
light independent reaction
42
what is the second stage of photosynthesis cycle also known as
calvin cycle
43
what is calvin cycle also known as
light independent reaction
44
whats the point of light independent reaction
build organic molecules
45
how does light independent reaction build organic molecules
products of light-dependent stage and CO2 used
46
does light independent reaction require light energy
no
47
where does light independent reaction take place
stroma
48
light independent reaction defenition
second stage of photosynthesis, products of light-dependent stage and CO2 used to build organic molecules
does not require light energy
takes place in stroma
49
limiting factor defenition
variable that limits the rate of a particular reaction
50
what is a variable that limits the rate of a particular reaction
limiting factor
51
magnesium defenition
inorganic nutrient rwquired in plant metabolism for production of chlorophyll
52
what type of nutreint is mg
inorganic
53
where is mg required
plant metabolism
54
function of mg
required in plant metabolism for production of chlorophyll
55
NADP definition
coenzyme that becomes reduced when it takes up hydrogen atoms during light-dependent stage of photosynthesis forming reduced NADP
56
coenzyme that becomes reduced when it takes up hydrogen atoms during light-dependent stage of photosynthesis forming reduced ....
NADP
57
what type of mol is NADP
coenzyme
58
how does NADP become reduced
when it takes up hydrogen atom during light - dependent stage of photosynthesis forming reduced NADP
59
when does NADP become reduced
during light-dependent stage of photosynthesis
60
what type of mol is nitrogen
inorganic nutrient
61
nitrogen defneition
inorganic nutrient required in plant metabolism for the production of amino acids, nucleotides and chlorophyll
62
what is inorganic nutrient required in plant metabolism for the production of amino acids, nucleotides and chlorophyll
nitrogen
63
what is nitrogen required during
plant metabolism
64
whats the function of nitrogen
production of amino acids, nucleotides + chlorophyll
65
defenition of non-cyclic photophosphorylation
formation of ATP and reduced NADP involving both photosystems 1 and 2
66
whats the formation of ATP and reduced NADP called
non-cyclic photophosphorylation
67
what systems does non-cyclic photophosphorylation involve
photosystems 1 and 2
68
defenition of oxidiation
loss of electron - gain of oxyegn or loss of hydrogen in a substance
69
what is loss of electron - gain of oxyegn or loss of hydrogen in a substance
oxidation
70
what is photolysis
splitting of molecule of water in the presence of light during light depenent stage of photosynthesis
this produces protons, electrons and oxygen
71
what splitting of molecule of water in the presence of light during light depenent stage of photosynthesis
this produces protons, electrons and oxygen
photolysis
72
what is the spiltting of water mol during presence of light during light dependent stage of photosynthesis
photolysis
73
what is split during photolysis
water mol
74
what needs to be there for photolysis
presence of light that occurs during light-dependent stage of photosynthesis
75
what does photolysis produce
protons, electrons and oxygen
76
photolysis equation
+ -
H O -> 2H + 2e +1/2O
2 2
77
photosynthesis defenition
metabolic pathway that synthesises organic molecule in presence of light
2 types - light dependent and light-independent reaction
78
photosynthesis equation
6CO +6 H 0 -> C H O + 6 0
2 2 6 12 6 2
79
defenition of photsynthetic pigments
mol present in chloroplats that absorb certain wavelengths of light eg chlorophyll a / b
80
what is the mol present in chloroplats that absorb certain wavelengths of light eg chlorophyll a / b
photosyntheitic pigments
81
what type of mols are photosystem
protein complex
82
defenition of photosystem
protein complex made of light-harvesting system and reaction center thats involved in absorption of light and transfer of electrons in photosynthesis
2 types
1 and 2
83
function of photosystems
involved in absorption of light and transfer of electrons in photosynthesis
84
how many types of photosystems are there
2
85
what are the types of photosystems
photosystem 1
photosystem 2
86
defenition of reaction centre
region of photystem where energy is funneled and photosynthetic reactions take place
contains 2 chlorophyll a molecules
87
what molecules does the reaction core contain
2 chlorophyll a mols
88
the reaction core is a region of what
photosystem
89
what is region of photystem where energy is funneled and photosynthetic reactions take place
contains 2 chlorophyll a molecules
reaction center
90
reduction defenition
gain of electrons, loss of oxygen or gain of hydrogen in a substance
91
what is the gain of electrons, loss of oxygen or gain of hydrogen in a substance
reduction
92
what is the retention value equation
distance travelled by component / distance travelled by solvent
93
what does RuBP mean
ribulose biphospahte
94
defenition of what RuBP is
5 carbon compound that reacts with carbon dioxide in light independent stage of photsynthesis forming two mols of GP
95
how many carbons in RuBP
5
96
what stage is RuBP present in
light-independent stage of photosynthesis
97
what actually is rubisco called
ribulose biphosphate carboxylase
98
what type of mol is rubisco
enzyme
99
what does rubisco catalyze
reaction of RuBP and carbon dioxide in light indepdendent stage of photosynthesis
100
during what stage of photosynthesis does rubisco work
light-indepednent stage
101
rubisco defenition
enzyme that catlyses reaction of RuBP and CO2 in light indepdendent stage of photosynthesis
102
defenition of a transducer
something that converts one type of energy into another
103
transducer examples
chloroplasts transform energy into chemical energy of ATP
104
what is the proper name for TP
triose phosphate
105
how many carbons does TP have
3
106
when is TP formed
in glycolysis and in light-independent stage of photosynthesis
107
whats the end goal of TP
may serve as starting material for formation of organic molecules or be used to regenerate RuBP
108
defenition of TP
3 carbon compound formed in glycolysis and light in-dependent stage of photosynthesis
may serve as starting material for the formation of organic mols
or be used to regenerate RuBP
A Level Biol Unit 3.2 - Photosynthesis
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