Download BIOLOGY 1 TEST REVIEW SHEET

HOW TO STUDY FOR CHAPTER 4.1-4.3
PHOTOSYNTHESIS BIG QUIZ....
study from pages _____ to ______in binder
At home:
1.
2.
3.
4.
5.
6.
Read and study ALL of your notes….your 4.1 and 4.2Power Notes, your 4.3 Class Cornell Notes, your 4.3 Power Notes
Re-read your Video Notes
Study and KNOW the 7 steps of the light dependent reactions (stage 1) and the 4 steps of the light independent reactions
(stage 2 = Calvin Cycle)….you drew these on your Photosynthesis Diagramming…use your finger to trace the sunlight
and electrons from step to step…you have to put these is sequential order on the BIG QUIZ
Look at your Photosynthetic Energy graphs (with the line and bar graph)
Fill in this ENTIRE review sheet……hint hint
Go to www.classzone.com and under the Purple Assessment tab, practice with the material by taking the section quizzes
(hint hint); also go to the Interactive Review Green tab and practice there too!
Chapter 4.1-4.3 = ATP and Photosynthesis
From 4.1 Power Notes
1. What do the letters ATP mean? What is ATP a synonym for? Adenosine Triphosphate; energy
2. What happens when a phosphate is removed from ATP? What molecule does it now become? Energy is
released; It is now ADP then a P is added back to make ATP
From 4.2 Power Notes…this is the BIG picture of what goes into and out of the chloroplast…..
3. What is the photosynthesis equation?
6 H2O + 6 CO2

6O2
+
C6H12O6
in sunlight
4. Looking at the picture of the chloroplast from 4.2 Power notes, what are the reactants of photosynthesis?
6 H2O + 6 CO2
5. Looking at the picture of the chloroplast from 4.2 Power notes, what are the products of photosynthesis?
6O2
+ C6H12O6
From 4.3 Class Cornell Notes-Remember photosynthesis occurs inside plants only inside plant cells inside the
chloroplast
6. What is a pigment? Molecules that absorb a certain wavelength of light
7. Name the 4 colors of the pigments that come from chlorophyll:
a. Chlorophyll a = ______ blue green ________ pigment
b. Xanthophyll = _________yellow___________ pigment
c. Carotene = ______________orange_______ pigment
8.
Plants absorb mostly ____red_____ and __blue_______ light and reflect mostly ________green___ light.
Your bars are highest on the bar graph that you completed in class because that is the light % that is
absorbed.
9.
What is the stomata? The openings on the under side of a leaf that allow for oxygen and carbon dioxide to
come into and out of the plant cell….like the plant cell’s mouth
10. What is a photosystem? How many photosystems does a thylakoid have? Molecule that contains chlorophyll
that absorb light; there are 2 of them and light actually strikes Photosystem II first, then strikes Photosystem I
11. Stage 1 of photosynthesis is called the __________light dependent____________ reactions
12. Stage 2 of photosynthesis is called the ____________light independent______________ reactions
13. Stage 1 occurs in the _________thylakoid________ of the chloroplast
14. Stage 2 occurs in the ______stroma_____________ of the chloroplast
15. Stage 1 has 7 steps: LIGHT DEPENDENT REACTIONS
a.
b.
c.
d.
e.
f.
g.
Step 1 = Light strikes Photosystem II which has chlorophyll and is in the _______thylakoid______.
Electrons get ________excited_______ and cause reactions to occur and the electrons move into the
electron transport _______chain____.
Step 2 = The excited electrons cause water (H2O) to split into __ H+ ions ___ and __ Oxygen____.
This is where we get our __________oxygen_________to breathe.
Step 3 = The H+ ions (that came from water splitting) now diffuse INTO the
_______thylakoid_____________ membrane.
Step 4 = More ____________sunlight_____ strikes Photosystem I which absorbs energy which
excites more electrons to have more reactions occur.
Step 5 = The excited electrons cause ________NADPH___ to be made (to carry energy)
Step 6 = The H+ ions that diffused into the thylakoid now diffuse back out through a
_________protein channel_____
Step 7 = This causes ADP to be changed into ______ATP____ (to carry energy)
16. SO……in Stage 1, there are 3 products: oxygen (from ______water_______ splitting), ______ATP_____ and
____NADPH_____ to carry energy to make sugars in Stage 2
17. Stage 2 has 4 steps: LIGHT INDEPENDENT REACTIONS
a.
b.
c.
d.
___ CO2_______ enters the Calvin Cycle (we have exhaled this)
It takes a lot of energy for a plant to make its own sugar so ____ATP _________ and _NADPH______
(that was JUST made in Stage 1) enter the cycle.
A six carbon sugar is make which is ___________ C6H12O6__________ (glucose)
Plants use the sugar as their ______energy or food_________ source
18. SO…in Stage 2, there is 1 product: _______ C6H12O6 = sugar = carb = glucose = plant food_____.
Remember Stage 2 is all about the “C’s…. CO2 enters the Calvin Cycle to make C6H12O6
19. ALSO…in words the equation is:
•
•
6 H2O
+
6 CO2

6O2
+
C6H12O6
in sunlight
Water + Carbon Dioxide YIELDS Oxygen
+ Glucose
(in soil) + (we exhale)
YIELDS (from water + (plant food
splitting)
from the C in CO2)