Unit 1B - Photosynthesis & Cellular Respiration Flashcards
The starting molecule for glycolysis is
Glucose
The Kreb’s Cycle is also known as the
Citric Acid Cycle
Glycolysis makes a total of _____ be has a net gain of ____ ATP
4 total
2 net gain
The overall purpose of the ETC is to
produce ATP
The overall yield of cellular respiration with oxygen is ______ ATP
36
For 1 molecule of glucose, how many molecules of ATP are produced with oxygen?
Without oxygen?
36
2
How do the products of cellular respiration relate to photosynthesis?
The products of cellular respiration (water and carbon dioxide) are the reactants of photosynthesis
Most of the energy generated by aerobic respiration is made during the
Electron Transport Chain
When a cell is running low on oxygen it will begin to do
Fermentation
Which organisms do each type of fermentation?
Lactic Acid - animals, some fungi, bacteria
Alcoholic - yeast
List the products of each type of fermentation
Lactic Acid - lactic acid & NAD+
Alcoholic - alcohol, CO2, and NAD+
When is energy released from an ATP molecule?
When the bond is broken between the second and third phosphate
List the correct sequence of events for cellular respiration (aerobic and anaerobic)
Aerobic -
Glycolysis –> Kreb’s –> ETC
Anaerobic -
Glycolysis –> Fermentation
The general formula for cellular respiration is
C6H12O6 + 6O2 –> 6CO2 + 6H2O + 36ATP
The cause of muscle soreness is
Buildup of lactic acid from lactic acid fermentation
Which organisms carry out cellular respiration?
All eukaryotic organisms
(Only things that don’t are anaerobic)
The two steps of photosynthesis are
Light Dependent and Light Independent (Calvin Cycle)
Chlorophyll is found
In the thylakoids
A stack or stacks of thylakoids is called
Grana (granum)
Plants take in _____ and give off _____
Carbon Dioxide; Oxygen
The overall equation for photosynthesis is
6CO2 + 6H2O + Light Energy –> C6H12O6 + 6O2
C6H12O6 is the chemical symbol for
Glucose
What kind of biomolecule is glucose?
Carbohydrate (sugar)
The light-collecting molecules found in plants are called
Pigments
The pigment most commonly found in plants is
Chlorophyll
Why do plants appear green?
They do not absorb green light
They reflect green light
The three things that affect the rate of photosynthesis are
- temperature
- light intensity
- amount of water
What are the overall purposes of photosynthesis and cellular respiration?
Photosynthesis - energy capture (makes chemical energy in the form of glucose)
Cellular Respiration - energy release (breaks down the chemical energy stored in glucose and creates energy in the form of ATP which the cell can use)