BIO 1500 EXAM Q&A
Respiratory pigments - ANSWER-circulate in blood or hemolymph and greatly
increase the amount of oxygen that is transported
hemoglobin - ANSWER-the respiratory pigment of almost all vertebrates and many
invertebrates
single hemoglobin molecule can carry - ANSWER-four molecules of O2 one
molecule for each iron-containing heme group
Bohr shift - ANSWER-CO2 produced during cellular respiration lowers blood pH and
decreases the affinity of hemoglobin for O2
Photosynthesis - ANSWER-the process that converts solar energy into chemical
energy
Autotrophs - ANSWER-sustain themselves without eating anything derived from
other organisms
Photoautotrophs - ANSWER-Almost all plants. Using the energy of sunlight to make
organic molecules
Heterotrophs - ANSWER-obtain their organic material from other organisms. The
'consumers' of the biosphere. Almost all depend on photoautorophs for food and O2
General photosynthesis equation - ANSWER-6CO2 + 6H20 + light energy =
6CH126O2
photosynthetic cells - ANSWER-include enzymes and other molecules grouped
together in a membrane. Allows for chemical reactions of photosynthesis to proceed
efficiently
Chloroplast are found mainly - ANSWER-in cells of the mesophyll, the interior of the
leaf
photons - ANSWER-light behaves as though it consists of discrete particles
pigments - ANSWER-substances that absorb visible light
chlorophyll a - ANSWER-main photosynthetic pigment
chlorophyll b - ANSWER-broaden the spectrum used for photosynthesis
carotenoids - ANSWER-absorb excessive light that would damage cholorphyll
spectrophotometer - ANSWER-measures a pigment's ability to absorb various
wavelengths
Respiratory pigments - ANSWER-circulate in blood or hemolymph and greatly
increase the amount of oxygen that is transported
hemoglobin - ANSWER-the respiratory pigment of almost all vertebrates and many
invertebrates
single hemoglobin molecule can carry - ANSWER-four molecules of O2 one
molecule for each iron-containing heme group
Bohr shift - ANSWER-CO2 produced during cellular respiration lowers blood pH and
decreases the affinity of hemoglobin for O2
Photosynthesis - ANSWER-the process that converts solar energy into chemical
energy
Autotrophs - ANSWER-sustain themselves without eating anything derived from
other organisms
Photoautotrophs - ANSWER-Almost all plants. Using the energy of sunlight to make
organic molecules
Heterotrophs - ANSWER-obtain their organic material from other organisms. The
'consumers' of the biosphere. Almost all depend on photoautorophs for food and O2
General photosynthesis equation - ANSWER-6CO2 + 6H20 + light energy =
6CH126O2
photosynthetic cells - ANSWER-include enzymes and other molecules grouped
together in a membrane. Allows for chemical reactions of photosynthesis to proceed
efficiently
Chloroplast are found mainly - ANSWER-in cells of the mesophyll, the interior of the
leaf
photons - ANSWER-light behaves as though it consists of discrete particles
pigments - ANSWER-substances that absorb visible light
chlorophyll a - ANSWER-main photosynthetic pigment
chlorophyll b - ANSWER-broaden the spectrum used for photosynthesis
carotenoids - ANSWER-absorb excessive light that would damage cholorphyll
spectrophotometer - ANSWER-measures a pigment's ability to absorb various
wavelengths
