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WorksheetsPhotosynthesis
Total questions: 15
Worksheet time: 23mins
Photosynthesis can be divided into two steps: the light-dependent reactions and the Calvin cycle.
Which of the following correctly describes the overall process of the light-dependent reactions?
During the light-dependent reactions, carbon fixation occurs
The light-dependent reactions occur in the stroma of choloroplasts
Light energy is converted into chemical energy in the form of ATP and NADPH
ATP and NADPH are used to make carbohydrates
Where does photosynthesis take place? (a)
Where in the chloroplast does the light dependent phase occur?
Stroma
Thylakoid membrane
Grana
Cytosol
The light-dependent reactions of photosynthesis take energy from sunlight and convert it into stored chemical energy.
Which compounds are produced in the light-dependent reactions?
ADP and NADPH
ADP and NADP+
ATP and NADPH
ATP and NADP+
What are the products of the light independent phase of photosynthesis? (select all)
Rubisco enzyme
Glucose
Oxygen
Carbon dioxide
Rubisco is:
a pigment which captures light energy
a membrane protein used to transport electrons
an enzyme which catalyzes carbon fixation
a simple glucose monomer produced in the calvin cycle
What is carbon fixation?
The joining of inorganic carbon atoms into an organic molecule
Taking carbon gas and fixing it to a solid
Correcting an error in the carbon atom
Being obsessed with carbon
Which of the following best describes how the light-dependent reactions and Calvin cycle function together?
The Calvin cycle uses ATP and NADPH generated by the light reactions to synthesize carbohydrates.
The Calvin cycle uses ATP and NADPH generated by the light reactions to break down carbohydrates.
The Calvin cycle generates ATP and NADPH to excite electrons during the light reactions.
The Calvin cycle produces ATP and NADPH to drive the formation of an electrochemical gradient during the light reactions.
The flat disk-like structures inside the chloroplast are called (a)
Stacks of thylakoids are called (a)
Which of the following is the correct equation for photosynthesis? (a)
What can the glucose made during photosynthesis be used for?
Cellular respiration
Synthesis of other organic compounds
Osmosis
Stored as starch for later
Photosynthesis
Why does chlorophyll look green to the human eye?
Chlorophyll absorbs blue and yellow light, which make green.
Chlorophyll is green as the result of an optical illusion created by light transmission.
Chlorophyll reflects green light.
Chlorophyll absorbs green light.
Given the shape of the graph above, which variable(s) could be on the x axis?
(Select all that apply)
Light intensity
Temperature
Carbon dioxide concentration
Oxygen concentration
The Calvin cycle is considered light-independent because it can occur in darkness. However, most often the Calvin cycle takes place in sunlight.
Which of the following likely explains why?
The enzymes involved in the Calvin cycle are unable to bind substrates in the dark.
Sunlight is important in activating carbon fixation in the Calvin cycle.
The Calvin cycle requires ATP and NADPH, which require sunlight to be produced.
RuBP regeneration requires sunlight in order to occur and continue the Calvin cycle.
