Blue light has more energy than red light. Therefore, blue light ..
has a shorter wavelength than red light.
Accessory pigments within the chloroplasts are responsible for ..
absorbing photons of different wavelengths of light and passing that energy to P680 or P700.
Noncyclic electron flow along with chemiomosis in the chloroplast results in the production of ..
ATP, NADPH, and O2.
CAM plants avoid photorespiration by ..
fixing CO2 into organic acids during the night; these acids then release CO2 during the day.
In green plants, most of the ATP for synthesis of proteins, cytoplasmic streaming, and other cellular activities comes directly from
What portion of an illuminated plant cell would you expect to have the lowest pH?
The thykaloid space.
How does cyclic electron flow differ from noncyclic electron flow?
No NADPH and O2 is produced by cyclic electron flow.
What is the final electron acceptors for the electron transport chains in the light reactions of photosynthesis and in cellular respiration?
NADP+ in light reactions. O2 in respiration.
What is a G protein?
A protein on the cytoplasmic side of a membrane that becomes activated by a receptor protein.
Signal amplification is most often achieve by ..
an enzyme cascade involving multiple protein kinases.
One of the major differences in the cell division of prokaryotic cells compared to eukaryotic cells is that ..
the chromosomes do not separate along the mitotic spindle in prokaryotic cells.
A plant cell has 12 chromosomes at the end of mitosis. How many chromosomes would it have in the G2 phase of its next cell cycle?
In animal cells, cytokinesis involves ..
the contraction of the contractile ring of the microfilaments.
Cancer cells exhibit ..
changing levels of MPF concentration, passage through the restriction point, metastasis, and the mitotic phase of the cell cycle.
Cell plate ..
forms at the site of the metaphase plate, fuses with the plasma membrane, cell wall is laid down between its membrane, and forms during telophase in plant cells.
The rhythmic changes in cyclin concentration in a cell cycle are due to ..
its degradation, which is initiated by active MPF.
In a plant cell, a centrosome functions in the formation of ..
microtubules of the spindle apparatus.
What initiates the separation of the sister chromatids in anaphase?
the cessation of delay signals received from unattached kinetochores.