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WorksheetsBiology II 1st Semester
Total questions: 20
Worksheet time: 10mins
Where do the light dependent reactions occur exactly?
Chlorophyll a absorbs which color(s) of light?
Orange and green
Red, purple, and orange
Define carbon fixation.
CO2 is fixed to RUBP by Rubisco to ultimately form 3-phosphoglycerate
Why is carbon fixation important?
It’s an essential process for sustainability of life.
Rubisco attaches CO2 to RUBP
Carbon dioxide fixation
Noncyclic pathway
Formation of glucose
cyclic pathway
ATP and NADPH are required
Noncyclic pathway
PGA to PGAL conversion
Formation of glucose
Carbon dioxide fixation
2 PGALs combine to form a six-carbon product
Noncyclic pathway
PGA to PGAL conversion
Cyclic pathway
Formation of glucose
O2, ATP, and NADPH are produced
Cyclic pathway
PGA to PGAL conversion
Noncyclic pathway
Formation of glucose
An electron transport system produces ATP but not NADPH
Carbon dioxide fixation
Cyclic pathway
Formation of glucose
Noncyclic pathway
The enzyme rubisco fixes carbon by attaching CO2 to ___.
Electrons lost by chlorophyll are replaced by electrons donated from ___.
Which type(s) of plants have adapted to hot, dry conditions by minimizing photorespiration?
680 nanometers
Blue, short, high frequency, chlorophyll b, carotenoids
Yellow, long, low frequency, chlorophyll b
Purple, short, high frequency, chlorophyll a, carotenoids
Red, longer length, lower frequency, chlorophyll a
450 nanometers
Yellow, long, low frequency, chlorophyll b
Blue, short, high frequency, chlorophyll b, carotenoids
Green, medium, medium frequency, beta-carotene (carotenoids)
Purple, short, high frequency, chlorophyll b
In the cyclic pathway of the light-dependent reactions, electrons ejected from photosystem I enter the electron transport system before returning to __.
The electrons that are accepted by NADP+ to form NADPH during the non cyclic pathways of the light-dependent reactions are emitted by __.
400 nanometers
Blue, short, high frequency, chlorophyll b, carotenoids
Red, longer length, lower frequency, chlorophyll a
Purple, short, high frequency, chlorophyll a, carotenoids
Green, medium, medium frequency, beta-carotene (carotenoids)
650 nanometers
Yellow, long, low frequency, chlorophyll b
Blue, short, high frequency, chlorophyll b, carotenoids
Purple, short, high frequency, chlorophyll a, carotenoids
Red, longer length, lower frequency, chlorophyll a
500 nanometers
Green, medium, medium frequency, beta-carotene (carotenoids)
Red, longer length, lower frequency, chlorophyll a
Purple, short, high frequency, chlorophyll a, carotenoids
Yellow, long, low frequency, chlorophyll b
In Engelmann’s 1882 experiment, why did bacteria cluster in areas of red or blue wavelengths of light?
These areas had the most oxygen being released. Bacteria are attracted to red and blue light because these wavelengths are more reactive than other wavelengths.
Bacteria can go through photosynthesis.
