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Photosynthesis Review. Plants “look green” because they _____________ green wavelengths of light. absorb reflect reflect Photosynthesis in plants takes.

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Presentation on theme: "Photosynthesis Review. Plants “look green” because they _____________ green wavelengths of light. absorb reflect reflect Photosynthesis in plants takes."— Presentation transcript:

1 Photosynthesis Review

2 Plants “look green” because they _____________ green wavelengths of light. absorb reflect reflect Photosynthesis in plants takes place inside which organelle? chloroplasts

3 A _________________ is a molecule (like chlorophyll) that absorbs energy and is used by green plants to absorb sunlight. Name the two types of chlorophyll ________________ & _________________ pigment Chlorophyll a Chlorophyll b

4 Blue-violet and red wavelengths Chlorophyll a Chlorophyll b Absorption of Light by Chlorophyll a and Chlorophyll b © Pearson Education, Inc. Publishing as Pearson Prentice-Hall. All rights reserved. Which wavelengths of light do chlorophyll a and chlorophyll b absorb best?

5 Chlorophyll b Chlorophyll a Absorption of Light by Chlorophyll a and Chlorophyll b They do not absorb green light. Which wavelength of light does Chlorophyll a and chlorophyll b Absorb the least? © Pearson Education, Inc. Publishing as Pearson Prentice-Hall. All rights reserved.

6 Name the molecule used by living things to store and transfer energy =___________________________ ATP/adenosine triphosphate

7 Use words to fill in the overall chemical reaction for photosynthesis. ___________+___________ __________ + __________ Carbon dioxide water Sugars oxygen

8 Land plants get the carbon dioxide needed for photosynthesis from the _____________ atmosphere Name the high energy electron carrier that picks up electrons and H + ions when water is split. NADP +

9 This organism is a _____________. autotroph heterotroph heterotroph Image from: http://www.entm.purdue.edu/wildlife/chipmunk_pictures.htm

10 Name the 2 sets of reactions that make up photosynthesis: #1 is called ___________________. Light-Dependent Reactions #2 is called ________________. Calvin Cycle (or Light-independent Reactions) #1 #2 Photosynthesis

11 Label the reactants and products for the Light dependent reactions #1 = __________________ #2 = __________________ #3 = __________________ ATP and NADPH Light Dependent Reactions #1 #2 Photosynthesis SUNLIGHT and WATER #3 Oxygen

12 Label the reactants and products for the Calvin cycle #1 = __________________ #2 = __________________ #3 = __________________ carbon dioxide #1 #2 Photosynthesis ATP & NADPH Calvin CYCLE #3 Sugars

13 Space surrounding the thylakoids is called the _______________. stroma Stacks of thylakoids are called ________. If you were talking about only one of these you would call it a ______________ The main photosynthetic pigment in green plants = ___________________ grana granum chlorophyll

14 The clusters of proteins in the thylakoid membrane that collect light are called ________________ Where does the Calvin cycle happen? A protein that helps chemical reactions happen faster in living things is called an _______________ PHOTOSYSTEMS In the stroma enzyme

15 TRUE or FALSE The Calvin cycle requires light. FALSE: It is light INDEPENDENT Light-Dependent Reactions break apart ________ and give off _______ gas. wateroxygen

16 This stack of membrane sacs is called a ________________ Which part of photosynthesis happens here? granum Light dependent reactions

17 This space around the grana is called the _____________ Which part of photosynthesis happens here? stroma Calvin cycle

18 ______________ are plant pigments that are orange or yellow instead of green An organism that can make its own food like a green plant is called an _______________ Carotenoids autotroph http://www.rnzih.org.nz/images/gardenimages/carrots_d.jpg

19 Molecules that interact in a chemical reaction that are written on the left side of a chemical equation are called ________________ An organism that CAN’T make its own food and must get its energy from consuming other organisms reactants heterotroph

20 Reactions of photosynthesis that use light energy to produce ATP and NADPH Large protein in the thylakoid membrane that uses energy from H+ ions to join ADP and a phosphate group to make ATP Light-dependent reactions ATP synthase

21 An organism like a green plant that can make its own food Molecule made of ribose, adenine, and 3 phosphates used by living things to store and release energy AUTOTROPH ATP

22 Pigments that are yellow or orange not green Clusters of light collecting proteins found in the thylakoid membrane Space surrounding the thylakoids inside a chloroplast carotenoids photosystems stroma

23 Process by which plants and some other organisms use sunlight to convert water and carbon dioxide (CO2) into oxygen (O2) and high energy carbohydrates Stack of thylakoid membranes PHOTOSYNTHESIS GRANUM (pl. GRANA)

24 6 carbon sugar molecule that is the main product of photosynthesis and is used as the fuel burned by cells glucose

25 Reactions of photosynthesis in which energy from ATP and NADPH is used to build high energy sugar molecules Negatively charged particle found circling the nucleus of an atom Calvin cycle electron

26 Molecules that are produced during a chemical reaction that are written on the right side of a chemical equation High energy electron carrier which receives electrons and H+ ions when water splits during the light dependent reaction products NADP +

27 Difference in concentration in one place compared to another Group of membrane proteins that transfers electrons between Photosystem II and I during the light-dependent reaction of photosynthesis Concentration gradient ELECTRON TRANSPORT CHAIN

28 Label molecules of the light dependent reactions. A = ___________________ B = ___________________ C = ___________________ D = ___________________ Electron Transport Chain PHOTOSYSTEM II PHOTOSYSTEM I ATP Synthase

29 Which ion moves across the membrane to power the ATP synthase enzyme to add a phosphate to ADP? Where do the carbon atoms come from that end up in carbohydrates made by the Calvin cycle? Which gas that we need is given off during photosynthesis? H + (Hydrogen ion) Carbon dioxide oxygen

30 Where do H+ ions build up as water is broken down and the light dependent reactions are happening? Where to does the ATP and NADPH produced during the light-dependent phase end up? Thylakoid space It is used by the Calvin cycle to make sugar

31 Label reactants and products for photosynthesis: #1 = ___________________ #2 = ___________________ #3 = ___________________ #4 = ___________________ #5 = ___________________ Carbon dioxide WATER OXYGEN SUGAR Light energy

32 Which molecule is broken to provide the H + to make NADPH? Which molecule spins as H + ions pass through to the other side of the membrane? H2OH2O ATP synthase

33 This organism is a(n) _____________. autotroph heterotroph Heterotroph Fungi get their energy by absorbing nutrients from dead organisms.

34 Many enzymes have this ending on their names = _________ Name 2 factors that can affect the rate of photosynthesis. What do you think would happen to the rate of photosynthesis on a cloudy day? -ASE Temperature, availability of water, and light intensity It would be slower than on a sunny day

35 How many phosphate groups are in a molecule of ADP? Write the equation for changing ADP into ATP. 2 ADP + P + energy → ATP

36 What compounds are formed from carbon dioxide during the Calvin cycle? Which part of photosynthesis can continue at night? sugars Calvin cycle

37 Another name for the Calvin cycle How are photosystem I and II alike? How are they different? Light INDEPENDENT reactions Both are light dependent Both use light to energize electrons II- splits water molecules I- NADPH is made

38 This organism is a(n) _____________. autotroph heterotroph autotroph

39 Write the chemical equation for photosynthesis ___________+___________ → __________ + __________ 6 CO 2 6 O 2 6 H 2 OC 6 H 12 O 6 This reaction shows how cells _______________ energy STORE RELEASE STORE Image from: BIOLOGY by Miller and Levine; Prentice Hall Publishing©2006

40 This reaction shows how cells _______________ energy STORE RELEASE RELEASE Image from: BIOLOGY by Miller and Levine; Prentice Hall Publishing©2006 http://academic.brooklyn.cuny.edu/biology/bio4fv/page/glycogen.jpg

41 A = ______________________ B = ______________________ Label A and B Thylakoid space (space inside thylakoid sac) stroma Image from: BIOLOGY by Miller and Levine; Prentice Hall Publishing©2006

42 A (individual membrane sac) = _________________ B (space inside the sac) = _____________________ C (stack) = __________________ D (space surrounding the sacs) = ________________ E (space outside the chloroplast) = ________________ Label the parts of this chloroplast Granum (pl. grana) Thylakoid space thylakoid Image from: BIOLOGY by Miller and Levine; Prentice Hall Publishing©2006 stroma cytoplasm


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