WorksheetsAP Cellular Photosynthesis Lab
Total questions: 25
Worksheet time: 21mins
Chlorophyll appears to be green because...
it absorbs green light
it reflects green light
the goal of the light dependent stage of photosynthesis is to convert light energy into...
ATP & NADPH
glucose
G3P
oxygen gas
The creation of ATP in the light dependent reaction is...
oxidative phosphorylation
photophosphorylation
substrate level phosphorylation
in 6 turns of the the calvin cycle, carbon from CO2 is incorporated to
RuBP
PGA
G3P
glucose
Stages of the Calvin Cycle:
A. Regeneration
B. Carbon Fixation
C. Reduction
What is the correct order?
A, B, C
B, C, A
B, A, C
C, B, A
The goal of the reduction phase of the Calvin Cycle is...
to reduce PGA to G3P
to reduce G3P to RuBP
to fix CO2 to PGA
to generate ATP & NADPH
The goal of the regeneration phase of the Calvin Cycle is to
convert G3P to RuBP
convert PGA to G3P
convert G3P to glucose
convert CO2 to PGA
The light dependent reactions occur in the
stroma
thylakoid
The Calvin Cycle occurs in the
stroma
thylakoid
One turn of the Calvin Cycle directly produces
G3P
C6H12O6
CO2
O2
Oxygen gas is produced...
When the water molecule is split
During ATP synthesis
When CO2 is fixed in the Calvin Cycle
What NADP+ is reduced to NADPH
A. Photons excite the electrons of PS I
B. Photons excite the electrons of PSII
C. Electrons travel along the ETC, allowing for the pumping of a proton
D. NADP + is reduced to NADPH
What is correct sequence of events?
A, C, B, D
B, C, A, D
A, B, C, D
C, A, B, D
For every 6 CO2 used in the Calvin Cycle, 12 G3P molecules are made, but only 2 of the G3Ps get used to make glucose. Why?
The other 10 G3P molecules are needed for the regeneration of RuBP
All 12 G3P molecules are used to make glucose
The 10 other G3P molecules are needed to make other molecules
Only 2 of the G3Ps have enough energy to make glucose
The electrons in chlorophyll release energy when...
they become excited by photons of light
they fall from their excited state back to their ground state
reduce NADP+ to NADPH
absorb certain wavelengths of light
Which of the following statements best represents the relationships between the light reactions and the Calvin cycle?
The light reactions provide ATP and NADPH to the Calvin cycle, and the Calvin cycle returns ADP, ℗i, and NADP+ to the light reactions.
The light reactions provide ATP and NADPH to the carbon fixation step of the Calvin cycle, and the Calvin cycle provides water and electrons to the light reactions.
The light reactions supply the Calvin cycle with CO2 to produce sugars, and the Calvin cycle supplies the light reactions with sugars to produce ATP.
The light reactions provide the Calvin cycle with oxygen for carbon fixation, and the Calvin cycle provides the light reactions with sugars to produce ATP.
Rubisco is important in which step of photosynthesis
energizing the electrons in chlorophyll
carbon fixation when CO2 is connected to RUBP during calvin cycle
regeneration phase as RUBP is made during calvin cycle
reduction of the carbon chain during the calvin cycle
What is one function of the other pigments besides chlorophyll, in the chloroplast?
to block damaging wavelengths of light
to absorb different wavelengths than the chloroplasts and pass them to chlorophyll a
to provide different colors to the leaves
to transfer energy to a separate photosystem beside the one using chlorophyll a and b.
What supplies the electrons that are lost in PS II?
the electrons from PS II
water
glucose
oxygen
