Photosynthesis chapter 8 exam 10.13.15
Photosynthesis
Is the process of converting light energy into usable chemical energy
Where does the overall process of photosynthesis occur?
Chloroplast
Solar power uses cells or panels to absorb the sun's energy . The energy is then used to create electricity. How does this compare to the light dependent reaction of photosynthesis
.
19. Green plants appear green to human eyes because mainly red and blue wavelengths are ________________ (absorbed/reflected), while green is __________________ (absorbed/reflected).
19. Green plants appear green to human eyes because mainly red and blue wavelengths are ________absorbed________ while green is ______reflected_____
20. What waste product of the light dependent reaction of photosynthesis is released and does not participate further in photosynthesis? ______________ (ATP/ NADPH/ H2O/ O2)
20. What waste product of the light dependent reaction of photosynthesis is released and does not participate further in photosynthesis? O2
24. In addition to ATP, _______________ (water/NADPH/glucose) is used as a source of energy in the photosynthesis reaction.
24. In addition to ATP, ____NADPH____ is used as a source of energy in the photosynthesis reaction.
What is the overall equation of photosynthesis
6co2+6h2o -light--> c6h12o6+ 6o2
How long can a cell store energy in ATP? And Glucose?
A few minutes Longer periods of time
31. What is a granum?
A stack of thylakoids
Comparing ADP and ATP to a batrery. How can you relate this analogy?
ADP is partially charged battery because it has 2 phosphstes but could have 3 total ATP is a fully charged battery becauss it has 3 phosphates and 3 is the max it can hold
Factors affecting photosynthesis
Amount of light Temperature Amount of water
What are ths names for the dark phase
Calvin cycle Light indepednet reaction
What are the reactants of photosynthesis
Carbon dioxide and water
Atp
Chemical compound used to store and release energy Adenine triphosphate
The principal pigment in photosynthesis, it absorbs blue, violet and red light but reflects green
Chlorophyll
Light independent reaction
Do not use light energy they use carbon dioxide from the atmosphere , NADPH, and ATP ,to make energy rich csrbon compounds and produce glucose
Fill-in the following paragraph: Biologists generally agree that the process of photosynthesis can be divided into two major reactions. These are often referred to as the light and dark reactions. During the light reaction molecules of (15)__________ are "split," producing hydrogen atoms and a gas called (16)__________. During this reaction, extra energy is stored in molecules of (17)_____________. The dark reaction requires no light because it is powered by the energy molecules made in the light reaction. A six-carbon compound known as (18)_______________ is formed during this reaction.
Fill-in the following paragraph: Biologists generally agree that the process of photosynthesis can be divided into two major reactions. These are often referred to as the light and dark reactions. During the light reaction molecules of (15)__H2O___ are "split," producing hydrogen atoms and a gas called (16)___O2____. During this reaction, extra energy is stored in molecules of (17)___ATP/NADPH____. The dark reaction requires no light because it is powered by the energy molecules made in the light reaction. A six-carbon compound known as (18)__C6H12O6____ is formed during this reaction.
Heterotrophs
Get food from obtaining other organisms
What are the products of photosynthesis
H2o -water O2-OXYGEN
NADP+
Is a compound that can accept and hold 2 high energy electrons and 1 hydrogen ion convertimg NADP+->NADPH
Chlorophyll
Is the major light absorbing pigment in plant photosynthesis
Why is the reaction of the calvin cycle called light independent
It does not need water Uses atp and nadph from the light dependent reaction
Another name for the light phase
Light dependent reaction Light reaction
Factors affecting photosunthesis
Light intensity Temperature And amount of water
What are the rractants if photosynthesis
Light, Water Co2
Light dependent reaction requires
Light, light absorbing pigments, water to form NADPH ATP. and oxygen
Would a plant placed in an environment with pure oxygen be able to survive?
No , one of the materials that plants use in photosynthesis is carbon dioxide. Nonre of this gas would be present in an atmosphere of pure oxygen
Autotrophs
Obtain energy from the sun to make their own food
The waste product released during photosynthesis in thr atmisphere
Oxygen
What are the oroducts of the light dependent reaction
Oxygen and atp
Where does the calvin cycle take place?
Stroma
The energy in food origionally came from
The SUN
What makes the calvin cycle a cycle
The compounf with which carbon dioxide from the air combine is a product of the cycle which enables the series of reactions to occur over and over
Where does the light dependent reaction take place?
Thylakoid
If you eat a hamburger with lettuce, tomatoes and onions how can you explain how all the molecules you ate can be traced back to the sun
Tomatoes onions and lettuce are plants that use photosynthesis to convery energy from the sun to usable energy Cows eat grass which converted energy from the sun
True or False? 26. ________ Photosynthesis converts light energy into chemical energy.
True or False? 26. _T_ Photosynthesis converts light energy into chemical energy.
When does ATP release energy?
When it breaks bonds between the phosphate groups
