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Day 5 Topic: Zoom in on: Mitochondria and Chloroplasts Chloroplasts = Photosynthesis - Use ______, water, and ____________ to make ______________ and Oxygen Done by _________________ (Plants, algae, some bacteria) = make their own food using the _________. Happens when there is enough _________________. EQUATION: 6CO2 + 6_______ + Energy enzymes C6H12O6 + 6_______ Chloroplasts are ___________ because they contain __________________ Chlorophyll= pigment that absorbs _______ and _________ light for photosynthesis and reflects ____________ light Mitochondria = Cellular Respiration - Use ______________ and ______________ to make _________ (energy), Water, and ____________ Done by ___________ organisms (plants, animals, bacteria, fungi..)! Everything needs _________________! In the _________________ of eukaryotes; In the ________________ of prokaryotes Happens ______ hours a day EQUATION: ___________ + 6O2 enzymes What is this ATP stuff?? 6CO2 + 6H20 + ________ _____ (Adenosine triphosphate): energy in cells ATP and ADP are ________________________ that are made of 3 parts: 1. A ________________________: adenine 2. A _____________: ribose 3. A ________________ group: TRI (3) OR DIphosphate (2) When the bond between the phosphate and the ________ is ____________ energy is _________________. ADP + P + energy (_____________) → ATP ***_______________ __________________ PROVIDES THE ENERGY NEEDED TO ADD THE PHOSPHATE.*** When the ______________ between the phosphate and ATP is ______________ energy is __________________. ATP → ADP + P + energy (________________) 1 Day 6 Topic: Anaerobic Versus Aerobic Respiration PHOTOSYNTHESIS AND CELLULAR RESPIRATION: A CYCLE! In the ___________ of: Plant, Algae, Some Bacteria ___ + ____ The CARBON CYCLE! ___+ _______ In the ___________ of: Autotrophs and Heterotrophs Aerobic = _______ oxygen Anaerobic = ___________ oxygen ____ ATP molecules are produced! This is the best way to goyou get more bang for your buck (produces the most energy)!! Only ____ ATPs are produced! Because it happens in the _______________, not the mitochondria! 2 Types: 1. In HUMANS: _________ _______ Fermentation Produced in your _________ when the muscles cannot get enough ____________! Build up of lactic acid is responsible for your painful, burning muscles after hard ___________. 2. In YEAST: ___________ Fermentation: in bacteria and yeast Produces ________ and __________ Responsible for ________ rising and making beer. Day 6 Activity 2 Day 5 Activity: Compare/Contrast Photosynthesis and Respiration Photosynthesis Respiration Snail/Plant Problem: Instructions: Draw arrows on the picture showing and labeling the path of oxygen, carbon dioxide, sugar, and water. Use markers, crayons, and/or colored pencils to enhance your labels. (For example, the plant produces oxygen and the snail uses oxygen so you will draw a green arrow from the plant to the snail.) Oxygen (O2) = Green Carbon Dioxide (CO2) = Yellow Sugar (C6H12O6) = Red Water (H2O) = Blue Complete the following chart based on your notes and the picture of the snail and plant: Photosynthesis Cellular Respiration Equation Reactants Products Energy/ATP (does it use it, make it, etc?) Organelle (where it takes place) Types of Organisms that perform it Purpose (what does it do for the organism?) 3 Analysis Questions (questions 1-5 refer to the snail/plant problem on the previous page): 1. What are the needs of the plant for survival? 2. What are the needs of the snail for survival? 3. In what ways does the snail need the plant for survival? 4. Does the plant need the snail for survival? Why or why not? 5. If you had to choose one as more important (the snail or plant), which would you pick and why? 6. Describe how photosynthesis and respiration work together to provide the needs of all organisms. 7. Give at least TWO REASONS why photosynthesis and respiration are often described as being the “opposite” of each other. a. b. Day 6 Activity Bromothymol Blue Demonstration Background Information: Bromothymol Blue is an indicator. It will turn yellow in the presence of carbon dioxide. Question: What will happen to the color of the bromothymol blue when a student blows into it? _________________________ Hypothesis: The bromothymol blue will __________ (stay blue or turn yellow) because ______________________________ ______________________________________________________________________________________________________. (Start color) (End color) Discussion: 1. Based on the results, what gas must be a product of cellular respiration? ______________________________________ 4 CELLULAR RESPIRATION IN GERMINATING AND NON-GERMINATING SEEDS LAB Analysis/Conclusion Questions: 1. In the space below, sketch the lines/curves observed in the germinating and non-germinating seeds. Be sure to label your axes and graphs appropriately. 2. Describe the lines/curves observed in the germinating and non-germinating seeds. Are the lines stable throughout the experiment? How are both lines similar throughout the experiment? How are they different? ____________________________________________________________________________________ ____________________________________________________________________________________ 3. What is the slope of the non-germinating seeds? _____________________________________________ 4. What is the slope of the germinating seeds? ________________________________________________ 5. In which trial was cellular respiration taking place at a faster rate? (based on your graphs and slopes) ____________________________________________________________________________________ 6. Explain why the rate of cellular respiration is different in non-germinating and germinating seeds. (use the background information on the lab handout) ____________________________________________________________________________________ ____________________________________________________________________________________ ____________________________________________________________________________________ 7. What is the equation for cellular respiration? _______________________________________________ 8. What gas do the seeds expel during cellular respiration? ______________________________________ 9. What gas do the seeds absorb and use during cellular respiration? ______________________________ 10. What factors can affect the rate of cellular respiration? (use lab handout) ____________________________________________________________________________________ ____________________________________________________________________________________ 11. In which organelle does cellular respiration take place? ______________________________________ 5 More Practice with Respiration and Photosynthesis! 1. Look at the diagram below and answer the following questions: a. What gas is being produced? b. In what organelle is this process taking place? c. In addition to the gas, what other compound is being made? d. What does the sun provide? 2. Look at the experimental set-up below. The flask contains yeast, sugar, and warm water. Under these conditions, yeast will perform cellular respiration. What conclusions could you draw if you were the scientist? In other words, why is the balloon inflating? 3. Bromothymol blue is an indicator that turns yellow in the presence of carbon dioxide. Look at the images below and color the flasks according to the colors they will turn. Flask 1: 100 mL water, 1 mL bromthymol blue, plant Flask 2: 100 mL water, 1 mL bromthymol blue, 2 small fish Flask 3: 100 mL water, 1 mL bromthymol blue, 2 small fish, plant Flask 4: 100 mL water, 1 mL bromthymol blue Flask 1 1. 2. 3. 4. Flask 2 Flask 3 Flask 4 What process is going on in flask 1? What process is going on in flask 2? What processes are going on in flask 3? Do you expect anything to happen in flask 4? 6 Unit 3 Study Guide: the best things to study are your notes and the activities we’ve done. Use this to check yourself!! Vocabulary Review ______ 1. Eukaryote ______ 2. Prokaryote ______ 3. Cell ______ 4. Organelle ______ 5. Cell specialization ______ 6. Stem cell ______ 7. Neuron ______ 8. Hormone ______ 9. Homeostasis ______ 10. Concentration gradient ______ 11. Equilibrium ______ 12. Distilled water ______ 13. Passive transport ______ 14. Active transport ______ 15. Photosynthesis ______ 16. Respiration ______ 17. ATP ______ 18. Anaerobic ______ 19. Alcoholic fermentation ______ 20. Lactic acid fermentation A. Maintaining a constant internal balance B. Made in yeast when there is no oxygen C. When there are different amounts of molecules on either side D. Uses energy and a protein to move molecules from low to high E. A cell with no nucleus or organelles (ex. bacteria) F. Means without oxygen G. How cells communicate quickly, using neurotransmitters H. Water, Sunlight, and CO2 are turned into Glucose and O2 I. A cell with a nucleus and organelles (ex. plants and animals) J. Water that has nothing in it K. The form of energy that cells use L. When the concentration is equal on both sides of the membrane M. A smaller part of a cell, that each has a special function N. Made in muscle cells when there is no oxygen O. The smallest living thing P. Glucose and oxygen are turned into ATP, water, and CO2 Q. How cells communicate, using a protein R. A cell that can become any cell in the body S. When a cell receives the right signals, it begins performing a job T. Uses no energy and moved molecules from high to low Match the Organelle with its Job! ______ 1. Cell membrane ______ 2. Cell wall ______ 3. Nucleus ______ 4. Ribsome ______ 5. Mitochondria ______ 6. Chloroplast ______ 7. Vacuole A. Controls what goes in and out of the cell B. Storage C. Makes ATP D. Offers support and protection E. Makes Glucose F. Contains DNA, controls all functions G. Makes proteins Fill out the table below for active and passive transport: TYPE PASSIVE MOVES? DIRECTION? USES ENERGY? USES A PROTEIN? Diffusion Osmosis ACTIVE Draw the carbon cycle below. Indicate the reactants, products, and where (e.g., in the chloroplast…) the processes are happening! 7