#1
Which photosynthetic pigment is responsible for capturing light energy and is found in the thylakoid membrane?
Chlorophyll a
Chlorophyll b
Carotenoids
Phycobilins
#2
In chromatography, what is the mobile phase?
The substance being analyzed
The stationary phase
The solvent that moves through the stationary phase
The container holding the stationary phase
#3
Which wavelength of light is least effective in driving photosynthesis?
Blue-violet
Green
Red
Yellow
#4
What is the main purpose of the Calvin cycle in photosynthesis?
Capture light energy
Fix carbon dioxide into sugars
Produce oxygen
Break down glucose
#5
What is the primary role of the reaction center in photosystems during photosynthesis?
Capture light energy
Convert glucose to oxygen
Initiate the electron transport chain
Regulate water absorption
#6
Which of the following pigments is responsible for the red, orange, and yellow colors in plants?
Chlorophyll a
Chlorophyll b
Carotenoids
Phycobilins
#7
What is the primary function of accessory pigments in photosynthesis?
Capture light energy and transfer it to chlorophyll
Synthesize glucose directly
Convert carbon dioxide to oxygen
Regulate water absorption
#8
Which type of chromatography separates pigments based on their size and charge?
Paper chromatography
Thin-layer chromatography
Column chromatography
Ion-exchange chromatography
#9
What is the role of the electron transport chain in photosynthesis?
Produce ATP and NADPH
Fix carbon dioxide
Convert glucose to oxygen
Capture light energy
#10
What is the primary function of carotenoids in photosynthetic organisms?
Capture light energy
Transfer electrons to the reaction center
Provide structural support to chloroplasts
Regulate water absorption
#11
In paper chromatography, what does the Rf value represent?
Retention factor, indicating the distance traveled by the solvent
Reflection factor, measuring light absorbed by pigments
Reactivity factor, assessing chemical activity
Refractive index factor, gauging bending of light
#12
Which photosynthetic pigment is commonly found in red algae and cyanobacteria?
Chlorophyll a
Chlorophyll b
Carotenoids
Phycobilins
#13
In chromatography, what does the stationary phase consist of?
Solid material on which pigments are separated
Liquid solvent moving through the system
Mobile phase
Gas used for separation
#14
In photosynthesis, what is the fate of the oxygen produced during the light-dependent reactions?
Used in cellular respiration
Released into the atmosphere
Converted to glucose
Stored in the chloroplasts
#15
What is the primary role of the phycobilins in photosynthetic organisms?
Capture and transfer light energy to chlorophyll
Store excess glucose
Provide structural support to chloroplasts
Convert carbon dioxide to oxygen