do now (1) 1.design an experiment that shows the movement of starch and iodine through a...
TRANSCRIPT
![Page 1: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/1.jpg)
DO NOW(1)
1. Design an experiment that shows the movement of starch and iodine through a semipermeable membrane
How can we tell where starch is present?
2. Why does a potato lose weight when placed in a saltwater solution?
![Page 2: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/2.jpg)
Photosynthesis
![Page 3: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/3.jpg)
DO NOW(2)
1. Why does water move into cells when cells are placed in distilled water?
2. What is the difference between active transport and passive transport (diffusion)?
![Page 4: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/4.jpg)
DO NOW (3)
1. Plant and animal cells are different. Which organelle belongs to a plant cell, animal cell or both (mitochondria, chloroplast, cell wall, cell membrane).
2. How do organisms obtain/get nutrition?
• Quiz Friday on Photosynthesis
• Test next Wednesday (photosynthesis & Respiration)
![Page 5: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/5.jpg)
How do organisms obtain nutrition?There are 2 ways:1. Heterotrophs• Unable to synthesize own food. • Ingests food (nutrients) produced by, or available in, other
organisms.
2. Autotrophs • Autotrophs make their own food. Also called producers• Plants do not need to ingest food. Sugar (nutrients) synthesized
during photosynthesis (some organisms)
![Page 6: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/6.jpg)
Why do living things need nutrition?
For energy!
Energy is needed for:– Growth– Maintaining homeostasis• All life Functions• GRRRNETS
– Reproduction
Everything
![Page 7: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/7.jpg)
What are some types of autotrophs? Mostly green plants and some single-celled organisms – Trees, grass, bushes, photosynthetic bacteria, algae
![Page 8: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/8.jpg)
How do autotrophs make food?PhotosynthesisPhoto I Synthesis = Light I Creates
Many autotrophs are plants. How are plants different from animals? (Think cellular)
![Page 9: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/9.jpg)
Photosynthesis Equations
Carbon dioxide + water + light glucose+ oxygen
6C02 + 6H2O + Light C6H12O6 + 6O2
Inorganic molecules Organic molecule + O2
Sun’s Energy Stored chemical energy (bonds)
![Page 10: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/10.jpg)
Photosynthesis in a StoryPhotosynthesis takes place in the chloroplasts of green plants. Chloroplasts contain the pigment chlorophyll which traps radiant energy from the sun!The Sun’s energy splits water into Oxygen (waste product) and HydrogenThe hydrogen is then combined with Carbon Dioxide to create glucose Glucose stores the Sun’s energy and Oxygen is used by plants and animals to get the energy from glucose (respiration)
![Page 11: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/11.jpg)
http://www.teachersdomain.org/asset/tdc02_vid_photosynth/
![Page 12: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/12.jpg)
Hmmm…
Is the Sun the Ultimate source of energy in most living organisms?
If photosynthesis did not take place, would we have oxygen to breath?
![Page 13: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/13.jpg)
DO NOW (4)
1. What is needed (reactants) for photosynthesis?
2. What are the products of photosynthesis?
3. Why does photosynthesis take place? Why is it important?
![Page 14: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/14.jpg)
Photosynthesis Photosynthesis - Process where the Sun’s energy is used
to synthesize organic compounds. Sun’s energy is converted into chemical energy stored in the bonds of glucose (organic compound produced).
Is the Sun the Ultimate source of energy in most living organisms?
If photosynthesis did not take place, would we have oxygen to breath? Would we have food to eat?
![Page 15: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/15.jpg)
Where does photosynthesis take place?
In chloroplasts found inside the mesophyll cells of leaves– Does photosynthesis take place in leaf stems or a tree trunk?
![Page 16: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/16.jpg)
Why are chloroplasts important for photosynthesis?
Chloroplasts contain chlorophyll– Chlorophyll
– Why are plants green?
– What colors are absorbed best?
![Page 17: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/17.jpg)
Does the color of light affect photosynthesis?What is your conclusion (Why):
Fri Sat Sun Mon Tues Wed Thurs
Green 0 - - 4 mm 9 mm 17 mm 20 mm
Blue 6 mm - - 43 mm 50 mm 67 mm 67 mm**
Red 2 mm - - 59 mm 64 mm 84 mm 87 mm
Yellow - - - - - - -
Clear 0 - - 37 mm 49 mm 70 mm 75 mm
No light filter - - - - 54 mm 66 mm 75 mm
![Page 18: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/18.jpg)
There are two parts to photosynthesis
How does photosynthesis make glucose?
![Page 19: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/19.jpg)
• Take place in chloroplasts In leaves
• Only occurs in Light
• Sun’s light energy captured by chlorophyll – Light energy is used to split H2O into H2 and O2
• Oxygen is given off as a waste product
1 - Light-dependent reactions:
![Page 20: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/20.jpg)
2 - Light-independent reactions:
• Takes place in chloroplastin leaves
• Can take place with or without light
• CO2 is combined with H2 to create GLUCOSE– Glucose = stores the energy of the Sun in bonds.
This is chemical potential energy
![Page 21: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/21.jpg)
Exit question:• How is glucose synthesized?
![Page 22: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/22.jpg)
Do Now (5)
1. Finish the formula:
______________ + ________ + light __________+ __________
2. Questions:– #2, 6, 24 in packet
![Page 23: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/23.jpg)
![Page 24: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/24.jpg)
What is going on here?The “thing” in the beaker is a green elodea plant. What are those little bubbles in the test tube?
![Page 25: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/25.jpg)
How can we measure the rate of photosynthesis?
Measure the amount of product produced!– How?
![Page 26: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/26.jpg)
What could speed-up or slow-down the rate of photosynthesis?
6C02 + 6H2O + Light C6H12O6 + 6O2
http://www.saddleworth.oldham.sch.uk/science/simulations/waterweed.htm
![Page 27: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/27.jpg)
Conclusions:Light intensity:
Amount of CO2:
Color of light :
![Page 28: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/28.jpg)
How do plants get materials needed for photosynthesis?
Roots
Stems
Leaves
![Page 29: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/29.jpg)
Roots• Many active transport proteins – Mineral ions and nutrients are actively transported into
the roots
• This creates low water concentration in the roots…• So, how does water get into the roots?
![Page 30: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/30.jpg)
Roots• Water diffuses (osmosis) into the roots and is trapped
by a special membrane surrounding the roots. • This creates pressure and the only place to go is up! • Why does the water have to go up to the leaves?
![Page 31: DO NOW (1) 1.Design an experiment that shows the movement of starch and iodine through a semipermeable membrane How can we tell where starch is present?](https://reader036.vdocuments.us/reader036/viewer/2022062516/56649e355503460f94b24011/html5/thumbnails/31.jpg)
Test yourself…
Write 2 of the 4 equations of photosynthesis without looking. Show reactants and products.