Photosynthesis17.notebook
January 18, 2017
DO Now on Evidence Collection from reading: 1/13/17
Match the scientist to their discovery:
A: plants absorb light and convert it to chemical 1. Ingen‐Housz
energy (1845)
2. Priestly
B: plants release a substance that allows 3. Calvin
combustion (oxygen) [1772]
4. Senebier
C: only the green parts of plants absorb light and 5. von Mayer
release oxygen (1779)
D: carbon dioxide is necessary for plant growth (1796)
E: identified a series of chemical reactions that resulted in the formation of sugar (1940‐1950)
Feb 11­3:12 PM
DO Now on Evidence Collection from reading: 1/13/17
Match the scientist to their discovery:
A: plants absorb light and convert it to chemical 1. Ingen‐Housz C
energy (1845)
2. Priestly B
B: plants release a substance that allows E
3. Calvin
combustion (oxygen) [1772]
4. Senebier D
C: only the green parts of plants absorb light and A
5. von Mayer
release oxygen (1779)
D: carbon dioxide is necessary for plant growth (1796)
E: identified a series of chemical reactions that resulted in the formation of sugar (1940‐1950)
Feb 11­3:12 PM
1
Photosynthesis17.notebook
January 18, 2017
Exit Task: what are the inputs and outputs?
Glycolysis
Cellular respiration
Apr 30­7:53 PM
Put title of activity in TOC:
Photosynthesis
Learning Target: I will be able to identify inputs and outputs of matter and energy in photosynthesis using words, diagrams and/or chemical equations.
Sep 2­1:50 PM
2
Photosynthesis17.notebook
January 18, 2017
White board: Quick check­ answer w/group or partner
1. All living things that can make their own "Food" are called:
2. Here is a plant. What are the three things it needs (inputs) from its external environment to carry out photosynthesis?
Feb 18­10:41 AM
White board: Quick check­ answer w/group or partner
1. All living things that can make their own "Food" are called: Autotrophs/Producers
2. Here is a plant. What are the three things it needs (inputs) from its external environment to carry out photosynthesis?
light
CO2
H 2O
Feb 18­10:41 AM
3
Photosynthesis17.notebook
January 18, 2017
Photosynthesis ­red pen revision
Record on question sheet or diagram
What do we need for photosynthesis? What do we get?
Light Energy (certain wavelengths, intensities)
Basic
Reaction: 6CO2 + 6 H2O Glucose(C6H12 O6) + 6O2 Apr 27­7:34 AM
So...
...what's actually green?
Where does the process occur?
Occurs in the chloroplasts of cells (plants/protists) which contain light absorbing pigments (chlorophylls a and b) Occurs in bacteria, but not in chloroplasts
Divided into 2 series of reactions: Light­dependent and Dark (light independent)
May 15­3:12 PM
4
Photosynthesis17.notebook
January 18, 2017
White board: Quick check­ answer w/group or partner
1. True or False: The light reactions of photosynthesis require light.
2. In 1772, Priestly (a chemist) did some experiments that proved plants release a gas that allows combustion. What is the gas plants release? What molecule does it come from?
3. Is this gas truly a waste product? What could the plant use it for?
Feb 18­10:33 AM
White board: Quick check­ answer w/group or partner
1. True or False: The light reactions of photosynthesis require light. True
2. In 1772, Priestly (a chemist) did some experiments that proved plants release a gas that allows combustion. What is the gas plants H2O
release? O2 What molecule does it come from?
3. Is this gas truly a waste product? What could the plant use it for? No­cellular respiration
Feb 18­10:33 AM
5
Photosynthesis17.notebook
January 18, 2017
PHOTOSYNTHESIS made simple
Light Reactions
(light energy transfered to chemical energy)
Label
SUN
EI=Energy inputs
EO=Energy outputs
Label
MI=Matter Inputs
MO=Matter Outputs
chlorophyll
O2
"by­product"
(may go to respiration)
e­
(low E)
H2O
(enzyme
reactions)
e­
(high E)
Light Independent
H
(NADPH & ATP)
Chemical Energy
to Dark Reactions
What are the inputs so far?
Outputs?
May 1­6:50 AM
White board: Quick check­ answer w/group or partner
1. True or False: the leaves of a plant appear green because chlorophyll absorbs green light.
2. Speaking of the light reactions, what is the energy output of these reactions?
3. What is the most important high energy molecule used by all living things?
Feb 18­10:44 AM
6
Photosynthesis17.notebook
January 18, 2017
White board: Quick check­ answer w/group or partner
1. True or False: the leaves of a plant appear green because chlorophyll absorbs green light.
False­ reflects green
2. Speaking of the light reactions, what is the energy output of these reactions? NADPH and ATP
3. What is the most important high energy molecule used by all living things? ATP
Feb 18­10:44 AM
PHOTOSYNTHESIS made simple
from Light Reactions
Light Independent (reorganization of CO 2 aka Carbon Fixation or Calvin­
Benson cycle )
Reactions
EI=Energy inputs Label
MI=Matter Inputs Label
MO=Matter Outputs
EO=Energy outputs
more plant
(NADPH & ATP)
Chemical Energy
(3x)
CO2
C
(enzyme reactions)
glucose
3 Carbon Sugar
(enzyme
reactions)
starch
used to build...
C CC
lipids Think about it: What are the new inputs in the Dark Reactions?
Outputs?
What has more PE, CO2 or sugar?
So, is soil really necessary for this process?
proteins
etc...
May 1­7:02 AM
7
Photosynthesis17.notebook
January 18, 2017
White board: Quick check­ answer w/group or partner
1. What are the inputs needed for the dark (or light independent) reactions of photosynthesis?
2. In the above question, if we are talking about green plants, what specifically, is the first "Food" that they make?
3. What molecule do the carbons come from to make the "food"? Where does the mass of the plant come from?
Feb 18­10:48 AM
White board: Quick check­ answer w/group or partner
1. What are the inputs needed for the dark (or light independent) reactions of photosynthesis? Energy (ATP/NADPH) and CO2
2. In the above question, if we are talking about green plants, what specifically, is the first "Food" that they make? Glucose/sugar
3. What molecule do the carbons come from to make the "food"? Where does the mass of the plant come from? CO2
Finish reading assignments and be prepared for virtual labs on Tuesday
Feb 18­10:48 AM
8
Photosynthesis17.notebook
January 18, 2017
Do Now: 1/17/17
Why do most plants look green in color? In fact, why does this box look green? Discuss with partner/group
LT: I CAN...describe how one variable can affect the rate of photosynthesis.
Apr 9­8:29 AM
Do Now:
1/18/17
1. Recognize this? What process does this reaction show?
Reaction:
Heat
Glucose + O2 CO2 + H2 O + Energy (ATP)
2. How do you think this relates to the photosynthetic equation:
_______ + ________ + ________ ________ + ______ What goes in/inputs
What comes out/outputs
Sep 9­9:13 AM
9
Photosynthesis17.notebook
January 18, 2017
Video Review:
Add to your notes and/or questions. Use a different color pen to indicate source. This shows photosynthesis with a bit more detail and complexity. Compare to your "photosynthesis made simple" notes
Virtual Photosynthesis Lab: Remember: Data tables and graphs are NOT labeled
1. Work at lab stations: follow directions in packet
2. Trade off using computer for each simulation
3. Make sure to graph data when required, use best graphing skills
4. Keep in mind the learning target‐ you should be able to describe the effect of at least one variable
5. Leave computers open to site for next period
Jan 17­8:07 AM
10