AP Biology Photosynthesis UPDATED
ACTUAL Exam Questions and CORRECT
Answers
Chlorophyll - CORRECT ANSWER - Green Pigment
Main photosynthetic pigmnet
Absorbs primarily violet-blue and red wavelengths
Thylakoids - CORRECT ANSWER - dense interconnected membranous sacs where the light
reactions occur
Grana - CORRECT ANSWER - stacks of thylakoid
Granum - CORRECT ANSWER - singular of grana
Chloroplast - CORRECT ANSWER - sites of photosynthesis
Photosynthesis - CORRECT ANSWER - conversion of light energy into chemical energy
stored in sugar and other organic molecules
Photosynthesis Equation - CORRECT ANSWER - 6 CO2 + 6 H2O + light --> C6H12O6 + 6
O2
Carbon Dioxide - CORRECT ANSWER - source of inorganic carbon used in photosynthesis
Electromagnetic Spectrum - CORRECT ANSWER - Electromagnetic energy which travels in
waves
, Colors - CORRECT ANSWER - Light we see is reflected off objects and light we don't see is
absorbed by objects
White - CORRECT ANSWER - All colors reflected
Black - CORRECT ANSWER - All colors absorbed
Chlorophyll a - CORRECT ANSWER - main photosynthetic green pigment, absorbs primarily
violet-blue and red wavelengths
Pigment - CORRECT ANSWER - a molecule that absorbs wavelengths in the visible light
spectrum
Carotenoid - CORRECT ANSWER - Group of pigments that absorb blue and blue-green
wavelengths, appear orange, yellow, and red
Light Reactions - CORRECT ANSWER - Occur in thylakoid membrane and are also called
light dependent reactions
Photosystem - CORRECT ANSWER - Consists of a reaction-center complex surrounded by
light-harvesting complexes which split water to create electrons that get transferred to NADP+ to
create NADPH and H+ which are used to create ATP
Light-Harvesting Complex - CORRECT ANSWER - Contains chlorophyll a, chlorophyll b,
and carotenoids (within the photosystem) that will trap light energy for use in the light reactions
Photosystem 1 - CORRECT ANSWER - Has P700 chlorophyll a in reaction-center complex,
thought to have evolved first because it can work alone to create primary acceptors, 2nd of the
photosystems
ACTUAL Exam Questions and CORRECT
Answers
Chlorophyll - CORRECT ANSWER - Green Pigment
Main photosynthetic pigmnet
Absorbs primarily violet-blue and red wavelengths
Thylakoids - CORRECT ANSWER - dense interconnected membranous sacs where the light
reactions occur
Grana - CORRECT ANSWER - stacks of thylakoid
Granum - CORRECT ANSWER - singular of grana
Chloroplast - CORRECT ANSWER - sites of photosynthesis
Photosynthesis - CORRECT ANSWER - conversion of light energy into chemical energy
stored in sugar and other organic molecules
Photosynthesis Equation - CORRECT ANSWER - 6 CO2 + 6 H2O + light --> C6H12O6 + 6
O2
Carbon Dioxide - CORRECT ANSWER - source of inorganic carbon used in photosynthesis
Electromagnetic Spectrum - CORRECT ANSWER - Electromagnetic energy which travels in
waves
, Colors - CORRECT ANSWER - Light we see is reflected off objects and light we don't see is
absorbed by objects
White - CORRECT ANSWER - All colors reflected
Black - CORRECT ANSWER - All colors absorbed
Chlorophyll a - CORRECT ANSWER - main photosynthetic green pigment, absorbs primarily
violet-blue and red wavelengths
Pigment - CORRECT ANSWER - a molecule that absorbs wavelengths in the visible light
spectrum
Carotenoid - CORRECT ANSWER - Group of pigments that absorb blue and blue-green
wavelengths, appear orange, yellow, and red
Light Reactions - CORRECT ANSWER - Occur in thylakoid membrane and are also called
light dependent reactions
Photosystem - CORRECT ANSWER - Consists of a reaction-center complex surrounded by
light-harvesting complexes which split water to create electrons that get transferred to NADP+ to
create NADPH and H+ which are used to create ATP
Light-Harvesting Complex - CORRECT ANSWER - Contains chlorophyll a, chlorophyll b,
and carotenoids (within the photosystem) that will trap light energy for use in the light reactions
Photosystem 1 - CORRECT ANSWER - Has P700 chlorophyll a in reaction-center complex,
thought to have evolved first because it can work alone to create primary acceptors, 2nd of the
photosystems
