bioenergetics Flashcards
from one pyruvate molecule how many NADH molecules are formed during krebs cycle
3
(6 from 1 glucose)
about — % of photosynth is caused by terrestial plants while the rest occurs in lakes and oceans
10
air contains —- % of CO2
0.03 - 0.04
the % of light absorbed the the leaf
1
breaking of the terminal phosphate of ATP releases about — Kcal of energy
7.3
2 most effective wavelengths absorbed by max pigments
430 and 670
the final electron acceptor during non cyclic electron pathway is
NADP+
NADP+ reductase transfers electrons from in ETC of non cyclic
ferredoxin to NAPH
if 12 NADPH are used in calvin cycle , then how many glucose molecules will be formed
1
(calvin cycle occurs 6 times to produce 1 glucose as 5 carbons of G3P are used for RuBP regeneration. 2 nadph used percycle)
what is the ratio of ATP to NADPH used for every 3 CO2 fixed in one cycle
3 : 2
the oxidation os succinate into furmate produces
FADH2
what is required as a precursor for synthesis of fumarate in the krebs cycle
amino acid aspartate
how many CO2 are produced in a single krebs cycle
2
(4 for one glucose)
PFK1 phosphofuctokinase is inhibited by by
high conc of ATP and citrate
high conc of NADH inhibits
pyruvate kinase (production of pyruvate)
the reaction which occurs in thylakoid interior space
photolysis
in which color of light is photosynthesis maximum
red light
When NAD+ is converted to NADH, it gains two things:
2 electrons and 1 proton
how many ATP molecules should be produced from the complete oxidation of acetyl coenzyme A
Each acetyl CoA enters into citric acid cycle and yields 3 NADH
(9 ATP), 1 FADH
(2 ATP) and 1 GTP (1 ATP). Therefore, altogether 12 ATP molecules will be produced
The only 5C-intermediate of Krebs cycle
α-ketoglutaric acid
which part of the chlorophyll molecule absorbs light?
porphyrin ring
the enzyme which forms glucose 6 phosphate
hexokinase
the light absorbing hydrophyllic part of chlorophyll is
flat and square shaped
in chlorophyll head at atom of magnesium is coordinated with
nitrogen of each pyrrole ring
what color is chlorophyll a
blue green
chlorophyll molecules are soluble in
organic solvents
absorptive peaks of chlorophyll b
450-475 nm
molecular formula of chlorophyll a
C55H72O5N4Mg
(ch3 functional group)
in noncyclic electron TC of light reaction (PSll) the first e- acceptor is
PQ
how much net gain of RUBP is obtained after one calvin cycle?
3
for every 3 molecules of CO2 in calvin cycle how much G3P is produced?
6
total vs net gain pf ATPs produced by glycolysis
net : 6
total:10
formula to determine no. of Atps produced by fatty acid
No of carbons x 6
primary electron acceptor for PSl
FRS
