Download Grading Rubric: Photosynthesis and Cellular

GRADING RUBRIC
WKS: Photosynthesis and Cellular
Respiration
Part 1: Label the diagram below using the following:
H2O, CO2, O2, Glucose, Light-Dependent Reaction, LightIndependent Reaction, Calvin Cycle, NADP+, ADP + P, ATP,
NADPH, Sunlight, grana, stroma, thylakoids
CO2
water
stroma
sunlight
NADP+
ADP + P
L.D.
Reaction
ATP
NADPH
L.I.
Reaction
Calvin
Cycle
thylakoid
grana
oxygen
C6H1206
Questions:
1. What are three factors that affect the rate of
photosynthesis?
Light
Temperature
Water
2. How do plants store the excess energy they produce?
Give examples
They convert it to larger polysaccharides like starch
(amylose). Many plants have specialized structures to do
this like a potato.
3. Why do most plants appear green in color?
Because chlorophyll does not absorb green wavelengths
of light (green light is relected)
4. Why do they sometimes say that the forests of our
planet are the “lungs of earth”?
They exchange gases like our lungs. Forests take CO2 out
of the atmosphere and produce O2.
Complete the table below
Photosynthesis
Function
Overall Equation
Convert light energy into chemical
potential energy
6CO2 + 6H20 → C6H12O6 + 6O2
Reactants
6CO2 + 6H20
Products
C6H12O6 + 6O2
Location of Light-Dependent Reaction Thylakoid membrane
Location of Light-Independent Reaction Stroma
Part 2: Label the diagram below using the following:
Electron Transport Chain, Glycolysis, Glucose, Krebs
Cycle, pyruvic acid, 2, 32, 2, H2O, O2, CO2
O2
Pyruvate
Glucose
Krebs
Cycle
Glycolysis
Electron
Transport Chain
H2O
CO2
2
2
32
Complete the table below
Cellular Respiration
Function
Overall Equation
Convert food energy into ATP
C6H12O6 + 6O2 → 6CO2 + 6H20
Reactants
C6H12O6 + 6O2
Products
6CO2 + 6H20
Location of Glycolysis
Cytoplasm
Location of Cellular Respiration
Mitochondria
Starting molecule of Glycolysis
Glucose
Starting molecule of Cellular Respiration
Number of ATP produced in Glycolysis
Total number of ATP produced in
Glycolysis + Cellular Respiration
Pyruvate (pyruvic acid)
2
36
5. How are the processes of photosynthesis and cellular
respiration dependent on each other?
Equations:
6CO2 + 6H20 → C6H12O6 + 6O2
C6H12O6 + 6O2 → 6CO2 + 6H20
Order of electron transport/cycle
Photosynthesis: electron transport → Calvin cycle
Cellular Respiration: Krebs cycle → electron transport
6. What does the word “glycolysis” mean?
Glucose breaking
7. What is the difference between an aerobic process and
an anaerobic process?
Aerobic: requires oxygen
Anaerobic: without oxygen
8. What happens after glycolysis if oxygen is present?
The products of glycolysis (pyruvic acid) continues on into
the mitochondria for cellular respiration to continue
making ATP
9. What happens after glycolysis if oxygen is not present?
Fermentation will take place trying to make a little bit of
energy in the form of ATP
10. What is the purpose of fermentation?
It allows glycolysis to continue making small amounts of
energy.
11. What are the two types of fermentation and where do
they occur?
Lactic acid fermentation: occurs in muscle cells
Alcoholic fermentation: anaerobic bacteria, yeast
12. What does ATP stand for?
Adenosine triphosphate
13. What are the three basic parts of an ATP molecule?
Adenine
Ribose
3 phosphate groups
14. How does ATP release energy when it is needed in the
cell?
The third phosphate bond breaks releasing energy
15. How does ADP stand for?
Adenosine diphosphate
16. How does an ADP molecule get “recharged” and
turned back into an ATP molecule?
From the food we eat
17. What is the most common type of carbon-based food
molecules that are used to provide energy in living things?
Carbohydrates (then lipids)
18. Why are proteins rarely broken down and used to
produce energy in living things?
Proteins are broken down into their component
monomers (amino acids). These are then used to make
new proteins the body needs
19. What type of organic compounds do plants store their
excess energy?
Starch (amylose)
20. What type of organic
compounds do animals
normally store their excess
energy?
Lipids (fat) and about 20
minutes worth of glycogen