2.4: Photosynthesis Flashcards
______, by definition, use photons (light) instead of chemical substrates, such as glucose, as an energy source to derive ATP.
Phototrophs
Phototrophs use what instead of chemical substrates?
Phototrophs, by definition, use photons (light) instead of chemical substrates, such as glucose, as an energy source to derive ATP.
______ is the process of capturing sunlight and converting it into the usable energy sources ATP and NADPH.
Photosynthesis
What is Photosynthesis?
Photosynthesis, the process of capturing sunlight and converting it into the usable energy sources ATP and NADPH.
Where does Photosynthesis occur?
The Chloroplasts
______ are double membrane-enclosed organelles specific to algae and plants and house the photosynthetic pigment chlorophyll
Chloroplasts
What is a Chloroplast?
Chloroplasts are double membrane-enclosed organelles specific to algae and plants and house the photosynthetic pigment chlorophyll
Were is the photosynthetic pigment chlorophyll housed?
Chloroplast
Chloroplast houses a photosynthetic pigment called ______.
Chlorophyll
True or False: Animal cells do not contain chloroplasts.
True
Photosynthesis is a two-step process that can be broken into light and dark reactions, ___1___, the light reaction and ___2___, the dark reaction.
- Photophosphorylation
- The Calvin Cycle
The first step in Photosynthesis is ___1___ also referred to as the ___2___.
- Photophosphorylation
- The Light Reaction
What is the first step in Photosynthesis?
Photophosphorylation (The Light Reaction)
The second step in Photosynthesis is ___1___ also referred to as the ___2___.
- The Calvin Cycle
- The Dark Reaction
What is the second step in Photosynthesis?
The Calvin Cycle (The Dark Reaction)
______, is the process of converting light energy into chemical energy to be used by the cell in the forms of ATP and NADPH.
Photophosphorylation, also known as the light reaction
Photophosphorylation, also known as the light reaction, is the process of converting light energy into …….
……chemical energy to be used by the cell in the forms of ATP and NADPH.
True or False: In the Photophosphorylation Process the presence of light is not always required.
False. The presence of light is ABSOLUTELY required
The Photophosphorylation process/reactions always occur in the ______.
membrane
______, involves the ability of a microorganism to use the ATP and NADPH generated in the light reaction to convert carbon dioxide (CO2) and water (H2O) into organic carbon compounds and useful carbohydrates, a process referred to as carbon fixation.
The Calvin cycle, also referred to as the dark reaction
The Calvin cycle, also referred to as the dark reaction, involves the ability of a microorganism to use the ATP and NADPH generated in the light reaction to convert ___1___and ___2___into organic carbon compounds and useful carbohydrates, a process referred to as ___3___.
- carbon dioxide (CO2)
- water (H2O)
- carbon fixation
The primary function of the Calvin cycle is to produce the ___1___, which, through a series of steps, eventually leads to the generation of ___2___.
- three-carbon compound glyceraldehyde 3-phosphate (G3P)
- glucose
What is the primary function of the Calvin cycle?
The primary function of the Calvin cycle is to produce the three-carbon compound glyceraldehyde 3-phosphate (G3P), which, through a series of steps, eventually leads to the generation of glucose.
During he Calvin Cycle ___1___ and ___1___ are reverted back to ___2___ and ___2___, which are reused during the light cycle.
- NADPH and ATP
- NADP and ADP
True or False: The end products of the Calvin cycle supply the molecules required during the light reactions, just as the end products of the light reactions enable the dark reactions to occur. Thus, the light and dark reactions are a cooperative system where each reaction is dependent upon the other.
True
In order for sufficient resupply, the Calvin cycle requires ______ turns (or repetitions) to generate one molecule of glucose.
6
An incomplete brief summary of the total reaction following six turns is shown below. Finish it:
6 CO2 + 18 ATP + 12 NADPH + 12 H20 →
C6H12O6 + 18 ADP + 12 NADP+
An incomplete brief summary of the total reaction following six turns is shown below. Finish it:
→ C6H12O6 + 18 ADP + 12 NADP+
6 CO2 + 18 ATP + 12 NADPH + 12 H20
