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Biology Midterm

Terms in this set (29)

which of the following organisms can perform photosynthesis
algae, cyanobacteria, plants
inside the chloroplast, chlorophyll is found in the
thylakoid membrane
the enzyme-rich solution found within the chloroplast is called the
stroma
in a redox reaction, reduction means ______, and oxidation means ______
gain of electrons; loss of electrons
during photosynthesis, ____ is oxidized, while _____ is reduced
water; carbon dioxide
which of the following events does not take place in the light reactions
conversions of 3PG to G3P
in photosynthesis, the light reactions ___ while the Calvin cycle _____
capture solar energy; converts the captured energy to chemical potential energy
the light reactions produce ____, which are used in the Calvin cycle. the Calvin cycle produces ____, which are in turn used in the light reactions
ATP and NADPH; ADP and NADP
why do plants contain other pigments besides chlorophyll
the additional pigments are able to absorb other light wavelengths that chlorophyll cannot
the light reactions act much as a battery to power the reactions of the Calvin cycle. this energy is stored as
ATP and NADPH
what is oxidation
removal of H+ ions to form new molecules
cellular respirations is the opposite of what other cellular process
photosythesis
cellular respiration uses oxygen to convert the chemical energy stored in organic molecules into
energy in ATP
the energy source that drives the production of ATP in oxidative photosynthesis is the
removal of electrons and hydrogen from glucose
the production of ATP in glycolysis and the citic acid cycle occurs through the
removal of a phosphate group from a substrate that is then added to ADP
when glucose is broken down to CO2 and H2O, ____ energy is released and converted into ___
chemical potential; ATP
the energy released from glucose by the process of cellular respiration is in the form of
chemical and heat energy
energy is released from ATP when
a phosphate group is removed from ATP yielding ADP + P + energy
two ATP are invested in glycolysis to
break glucose into two molecules
if you were looking under the compound light microscope at an onion root tip, in what stage of the cell cycle would the majority of the cells be
interphase
which of the following organelles would be abundant and in close proximity to the cell plate in a plant cell undergoing cytokinesis
Golgi apparatus
the G2 checkpoint prevents the cell cycle from continuing until
DNA is completely replicated and damage to DNA can be repaired
a mutation results in a cell that no longer produces a normal protein kinase from the M-phase checkpoint. which of the following would likely be the immediate result of this mutation
the cell would never leave metaphase
which of the following represents the phases of mitosis in their proper sequence
prophase, metaphase, anaphase, telophase
ben was looking at an onion root tip cells under the microscope in biology class. he saw one cell that had two nuclei within it. what stage of the cell cycle was this cell in
telophase/cytokinesis
prophase
has a nucleus
metaphase
checkpoint of mitosis; chromosomes lined in middle of cell
anaphase
chromosomes split into sister chromatids
telophase
chromatids are split into two separate nuclei
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