BIO 101 Photsyn-Lab-Handout

Electromagnetic Spectrum Ultra-Violet Infra-Red Light Light Short Waves Long Waves Visible Light You can see that visible light is only a very small slice of the electromagnetic spectrum. An important feature of electromagnetic energy is that shorter waves have more energy than longer waves. This is the key to understanding why only a narrow segment of waves in the electromagnetic spectrum is ideal for biological reactions like photosynthesis and vision. Some people humorously refer to this idea as the "Goldilocks" principle-the wavelength has to be "just right." The energy waves just shorter than violet light are called ultra- violet, and the waves just longer than red light are called infra-red. Ultra-violet waves are damaging to life. These waves have too much nergy waves can be • strong or too weak life as we know it. The molecules exposed to ultra-violet waves become over-activated and are chemically changed or destroyed. When molecules are exposed to infra-red waves, they are…

Photosynthesis is divided into light reactions and dark reactions. Define the purpose of each of these as well as the overall inputs and outputs for each stage. Edit View Insert Format Tools Table 12pt v Paragraph |BIU Av S OTE A O FEB étv MacBook Air F11 80 F8 F9 F10 F6 F7 F4 F5 2 F3 * へ 23 $ 6. 8. 4 R T Y U E

Orygen Producte UI:01:01 Time Remaining Return Next Your experimental team has gathered data on the rate of a plantť's photosynthesis, measured by oxygen production, as the light intensity was increased. The graph below was created from your gathered data. Note: Diagram 4 may also be helpful in answering the questions. Use the information in order to answer questions #28 - 31. Diagram 7: Rate of Photosynthesis with increasing light intensity 200 150 14 100 15 -100 16 100 200 300 600 700 Light Intensity (arbitrary unts) Glossary: 1. Pmar: The maximum pressure of oxygen gas. 2. Arbitrary units: The use of this term mean the graph is not using specific units as labels. Light intensity could be measured in lumens and oxygen production could have been measured in mm of Hg 17 18 Select the best explanation for the oxgen production leveling off as the light increases in intensity. 19 More light prevents water from getting to the leaf cells to be split. Photosystem l and Il in the light…

Calculate the rate of photosynthesis( absorption units/min) for sample 1 and 6.

Question: Start with a photon of sunlight and a carbon atom in a molecule of carbon dioxide in the atmosphere: model/diagram their pathway from that starting point to their final destination as a glucose molecule that is used for energy in a cell in the plant root. Following your diagram/model, provide a written explanation for what your diagram/model depicts. Make sure both your model and explanation are clear, concise, and have the appropriate level of detail to clearly demonstrate you understand photosynthesis, cellular respiration, and the movement of mass and energy in plants.    hence- recreate the diagram on pic 29 , but using the information from this problem. Then, when you get to cell respiration, explain what happens, and how carbs get converted to lipids in pic12

Comparing the chlorophyll a and b why did chlorophyll a travel the farthest on the tlc plate ?

(g) PDT therapy is based on both photophysical and photochemical processes. Discuss this statement using relevant diagrams to explain your answer.

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46 2 H G CI 8 Is M (n Ge M In UI Q LE Q S M In ь м + uv A canvas.northseattle.edu/courses/2086259/quizzes/5876542/take Account Dashboard Courses All of the polymers shown above are composed of [ Select] Groups more specifically [ Select ] Calendar Which one of these represents a molecule found in the cell wall of plants? [ Select ] Inbox Are you able to digest the molecule you selected for the previous question? History [ Select] Help From top to bottom, what are the specific names of these molecules? [ Select ] O •i 8:15

Chrome - Lechure Final Parts 3 &4 (page 9 of 50) toonline.texarkanacollege.edu/mod/quiz/attempt.php?attempt=503089&cmid=3353038page-8 TA) Question 9 Not yet answered Points out of 1.00 P Flag question is the main photosynthetic pigment that absorbs red and blue portions of the absorb blue and green spectrum. This pigment also reflects green color. wavelengths while reflecting orange and yellow. Select one: O a. Carotenoids; Chlorophyll O b. Chlorophyll; Carotenoids Previous page Next page Quiz navigation Time left 1:14:20 DELL 24 2 4 e y u j k alt ctrl 3.

Silent Mode On The A photo-ablative effect causes photo-dissociation or breaking of molecular bonds in tissue.

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Zoom 10:47 AM Fri Feb 12 e 28% AA quizizz.com + - Using the Commutative Property of Addition: Practice a Playing a Game - Quizizz I3D 10/35 In a plant cell, what is found in the chloroplast that gives the plant its green pigment? Chlorplast Photosynthesis Chlorophyll Cell wall Music off Zoom

DATA Table 2 Table 3 Absorbance Absorbance Absorbance Time Rate of unboiled unboiled boiled Chloroplast (min) photosynthesis light dark light 143 153 Unboiled . 0003 5 | .156 •160 .143 Dark 000 74 10 -184 .152 Boiled -. 00062 15 .]53 161 . 140 20 .148 139 QUESTIONS 1. IS THERE EVIDENCE THAT CHLOROPLASTS WERE ABLE TO REDUCE DPIP IN THIS EXPERIMENT? EXPLAIN. 2. Were chloroplasts able to reduce DPIP when kept in the dark? Explain. 3. Were boiled chloroplasts able to reduce DPIP ? Explain. 4. What conclusions can you make about the photosynthetic activity of spinach?

hp?attempt=2334320&cmid%3D1127808&page3D1#question-2648451-10 SQU E-LEARNING SYST Reducing sugars .e O ?Which of the following structures of Rhoeo discolor cannot been easily seen under the light microscope Chloroplasts .a O All structures can be seen easily under the light microscope .b O Ribosomes .c O Central vacuole .d O Cell wall .e O ?Which two parts of a microscope combine to give a magnified view of a cell Light source and objective lens Activote Wind Go to Settings to Objective lens and light source .b O 76°F Mostly sunny f4 0 f5 10 f6 f7 0 f8 9 f9 E f10 f11 F. F12 home end Inum Ik break

Using Figure 2 shown below, sketch one of the patterns of fluorescence that you mightobserveifyoumeasuredtheintensityoffluorescence overthetimeittakes the labelled ATP synthase to synthesise six molecules of ATP.

What is the rate of photosynthesis for the Green light and the blue light

Question : How should the vegetable drug green tea be analyzed pharmacologically? The answer must contain the following items: -Full scientific name, common names, the portion of the vegetable where the active principles are located and tell the most used chemical markers for green tea.

n Chrome-Lecture Final Parts 3 & 4 (page 8 of 50) tconline.texarkanacollege.edu/mod/quiz/attempt.php?attempt=503089&cmid=335303&page=7 FA) Question 8 Not yet answered Points out of 1.00 P Flag question What two products result from photosynthesis? (the FINAL products) Select one: O a. Glucose and carbon dioxide O b. Water and carbon dioxide O c. Glucose and oxygen Od. Water and oxygen Previous page DELL 1 Time left 1:50:02 @ 9 2 W #3 e (D C $ 54 r % 5 t Oll A 6 y & 7 O u * 8 O i 9 ✔ O

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Time (min) 86°F Mostly clear 0 5 сл 10 15 20 Rate of volume change (mL/hr) Tube 1 Green Light Rate of photosynthesis Rate of photosynthesis(- 3.3 mL hr 3.5 3.7 3.8 Rate of volume change(™ ) S 4 2.6 Q Search Tube 2 Green Control 3.3 3 2.6 2.3 2 1 Volume O₂ (mL) How to Calculate Rate of Volume Change Green light Rate of volume changelight( ) mL hr Tube 1 Blue Light 3.3 3 4.6 final volume(mL)—initial volume(mL) Time(min) 5.9 7.2 8.4 × 60( min hr Blue light Rate of volume change covered mL hr Tube 2 Blue Control 3.3 3 2.6 2.3 2

Question 2 Briefly explain how the antioxidant activities of tocochromanol natural products can be correlated to their chemical structures. Illustrate your answer with suitable chemical structures and reaction mechanisms. HO "Dandidad tocotrienol

It is biochemical reactions that enable organisms to harness sunlight to manufacture organic molecules? It is a molecule whose high energy phosphate bonds power many biological processes? This is a disk-like structure that makes up the inner membrane of a chloroplast? These are plant pigments responsible for bright red, yellow and orange colors in many fruits and vegetables? These are photosynthetic pigments efficient at absorbing orange, red, yellow, and green light, wavelengths that are not well absorbed by chlorophyll a? TRUE OR FALSE A coupled reaction is a pair of reactions, one exothermic and one endothermic. ATP contains less energy than ADP. In the ATP-ADP cycle, when the phosphate is removed, energy is released. In coupled reaction, an endothermic reaction supplies the energy needed to drive an exothermic reaction. Chlorophyll absorbs green light.

It is biochemical reactions that enable organisms to harness sunlight to manufacture organic molecules? It is a molecule whose high energy phosphate bonds power many biological processes? This is a disk-like structure that makes up the inner membrane of a chloroplast? These are plant pigments responsible for bright red, yellow and orange colors in many fruits and vegetables? These are photosynthetic pigments efficient at absorbing orange, red, yellow, and green light, wavelengths that are not well absorbed by chlorophyll a?

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Explain the metabolic purpose of the light reactions in 1 non-technical sentence (meaning an 8th grader could understand it)

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DARK REACTIONS 6 CO₂ Chemical Energy Enzymes a. Procedures -> C6H12O6 + 6 H₂O The activities in this laboratory exercise include: A. Examination of the cell structures of plants which are involved in photosynthesis and the transport of reactants and products (microscope). B. Separation of the various kinds of plant pigments (paper chromatography). C. Selective absorption of "visible" light by plant pigments (spectrophotometer and spectroscope). D. Effects of light quality on the light reactions of photosynthesis (shown on video). E. Identification of carbon dioxide as the substrate for the dark reactions (phenol red). F. Location of stored sugars (starch) in variegated leaves (leaf clearing demonstration). II. INTRODUCTION A. EXAMINATION OF PLANT CELL STRUCTURES 1. Plant cells involved with photosynthesis Plant cells, active in the process of photosynthesis, contain green spherical cytoplasmic organelles known as chloroplasts. These structures house both the pigments active in light…

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Explain why this experiment would or would not work if you used polar water as a solvent instead of alcohol, which is non-polar? (Hint: remember that “like dissolves like”)

700 600 Wavelength (nm) 500 Chlorophyll b is associated with the greatest rate of photosynthesis. The photosynthesis rate at 550 nm is the highest. Chlorophyll a absorbs wavelengths at both ends of the spectrum Carotenoids absorb the narrowest range of wavelengths of light

Question: 7 of 12 hotosynthesis could not occur without which of the following? O A. glucose O B. sunlight ОС. охудеn O D. ozone