Photosynthesis-Light Reactions
Photosynthesis-Dark Reactions (Calvin Cycle) and Energy Flow
Cellular Respiration-Glycolysis
Cellular Respiration-Citric Acid Cycle (Krebs Cycle)
Cellular Respiration-Oxidative Phosphorylation
100
What is the ultimate source of energy in most ecosystems, used in the first stage of photosynthesis?
What is sunlight?
100
This gas is fixed during the Calvin cycle to form glucose.
What is CO2?
100
Glycolysis breaks down one molecule of glucose into two molecules of this 3-carbon compound.
What is pyruvate?
100
The Krebs cycle occurs in this part of the mitochondrion.
What is the mitochondrial matrix?
100
The main output of oxidative phosphorylation is this molecule:
What is ATP?
200
This pigment in chloroplasts absorbs sunlight to power the light reactions of photosynthesis.
What is chlorophyll?
200
What is this molecule, the main output of the Dark Reactions/Calvin Cycle?
What is Glucose?
200
Glycolysis occurs in this part of the cell.
What is the cytoplasm?
200
This gas is released as a waste product during the Krebs cycle.
What is carbon dioxide (CO₂)?
200
This molecule is the final electron acceptor at the end of the electron transport chain.
What is oxygen?
300
The primary purpose of the light reactions is to produce these two molecules used in the Calvin cycle.
What are ATP and NADPH?
300
What is the 3-carbon precursor molecule used to make one molecule of Glucose?
What is G3P (glyceraldehyde-3-phosphate)?
300
The products of Glycolysis are ________, ________, and _______.
What are ATP, NADPH, H+
300
At the end of the Citric Acid Cycle, _____________ has been completely broken down.
What is glucose?
300
____________ is the precursor molecule to ATP, the energy molecule of the cell.
What is ADP + Pi?
400
This molecule is split during the light reactions, releasing oxygen as a byproduct.
What is water?
400
Organisms that make their own food through photosynthesis are called_________________; Organisms that cannot make their own food are called _____________________.
What are autotrophs; heterotrophs?
400
The electron carrier NAD+ is reduced to ______________ during glycolysis and carries electrons to later stages.
What is NADPH?
400
These high-energy electron carriers are produced in the Krebs cycle and used in oxidative phosphorylation.
What are NADH and FADH₂?
400
The use of high energy electrons are required to generate a __________ gradient in order to make ATP.
What is a proton (H+) gradient?
500
Which two particles result from the splitting of water?
Electrons (carried on NADPH), and H+ (protons).
500
Explain how photosynthesis and cellular respiration are energy transformations.
What is: photosynthesis is transforming sunlight energy into chemical energy (Glucose), and cellular respiration is the transformation of chemical energy (glucose) into chemical energy (ATP)?
500
This step must happen to pyruvate before it can enter the Krebs cycle.
What is conversion to Acetyl-CoA?
500
The outputs of the Citric Acid Cycle are _______
What are FADH2, NADH, ATP, CO2?
500
How does the poison cyanide work?
What is by displacing oxygen at the end of the electron transport chain, grinding cellular functions to a halt.