Photosynthesis: Ch 8PowerPoint Question Guide

Where Does Photosynthesis Occur?

1. Algae and photosynthetic bacteria can make their own food so they are called

______________.

2. Photosynthesis occurs in all aglal _____________ .

3. The organelle that contains chlorophyll is called the _______________.

4. Name two gases exchanged through algal cells?

5. Besides gases, ___________ vapor can be lost from an algal cell.

6. Sketch a stoma and label the cells that open and close the pore. Include arrows to show the direction of gas movement.

7. ______________ are organelles containing chlorophyll.8. Sketch and label a chloroplast.

9. How many membranes does a chloroplast have?

10. Describe the outer membrane of a chloroplast.

11. What is the thick fluid in the inside of a chloroplast called?

12. Stacks of thylakoids are called _____________ and are ____________ to each other.

13. Grana make up the __________ membrane of a chloroplast.

Why Algae Are Green, Red and Brown?

14. Why are algae green?

15. a. Chlorophyll molecules are located in the ___________ membranes and harvest light _____________ .

      b. Chlorophyll has a _____________ ion in their center.16. Chlorophyll and other pigments absorb ______________ of light from

400nm to 700nm.17. Chlorophyll absorbs __________ and ________ colors of light the best.

Algal Colors

18. What happens to the amount of chlorophyll being produced by other algae?

19. ____________ are algal pigments that include __________, orange, and __________ colors.

20. What is a redox reaction?

21. __________ is the loss of electrons, while _________ is the addition or gaining of electrons.

22. a. Write the summary equation for photosynthesis and label each compound.

b. Write the equation for chemosynthesis and label each compound.

c. Write the equation for bioluminescence and label each compound.

23. _______ is oxidized and ________ is reduced in photosynthesis.24. _______ is oxidized and ________ is reduced in chemosynthesis.25. _______ is oxidized and ________ is reduced in bioluminescence.

Cellular Energy

26.a. What is the ultimate energy for life on Earth?

b. What are two other basic energy sources for prokaryotes?

27. Algae store ___________ in the chemical bonds of ____________.

28. Chemical ___________ is released from sugars during _____________________.

29. ATP stands for __________________________.30. Name the parts of ATP?

31. Describe the bond attaching the last phosphate group to ATP.

32. What happens if the last phosphate bond on ATP is broken?

33. Name 3 things released when the last phosphate bond on ATP is broken.

34. The process of making ATP from ADP and a free phosphate is called ______________.

35. Energy released from is available for cellular _______________.Parts of Photosynthesis

36. Name the first part of photosynthesis.

37. Light reactions use energy from the _________ to produce _______ and the energy carrier _______.

38. The second part of photosynthesis is called the __________ cycle.

39. Does the Calvin cycle require light energy?

40. The Calvin cycle is also called the __________ fixation or the ______

pathway.

41. Where do the light reactions of photosynthesis take place in a chloroplast?

42. Name the two possible routes energized electrons can take during the light reactions of photosynthesis.

43. The cyclic electron flow only uses ______________ I in the thylakoid membranes and has chlorophyll a molecules at the photosystem's reaction center that absorbs ________ wavelength of light.

44. The only energy generated in the cyclic electron flow is _________.

45. The noncyclic electron flow uses both photosystem _____ and _____.

46. The chlorophyll molecules at the reaction center of photosystem II absorb wavelengths of ________nm.

47. Diagram the cyclic flow of electrons.

48. Label the diagram for the noncyclic flow of electrons.

Photosystem?                    Photosystem?

49. The noncyclic electron flow generates the gas ________ , as well as _______ and the energy carrier _________.

50. Both photosystem I and II use the ________ transport ______ (ETC) to produce ATP.

51. Water is split in ___________ , while NADPH is made in ____________.

52. Oxygen made by algae comes from the splitting of ___________.

53. _______________ powers ATP synthesis in algae.

54. Where does chemiosmosis occur in algae?

55. ATP is made using the _________________ chain and the enzyme ___________.

56. ___________ ions move through down their concentration gradient through the ______________ of the enzyme ATP _______________ to form ATP from _________.

57. ________ is the energy molecule used by cells and must be remade by ATP ___________ or chemiosmosis.

58. ATP _____________ is the enzyme used to make ATP from ADP.

59. The Calvin cycle does ______ require light energy and occurs in the _______ of the chloroplast.

60. The energy for the Calvin cycle is ________ and ________ made during the light reactions.

61. The gas _______ is used in the Calvin cycle to make the sugar __________.

Overview

1. Photosynthesis is a(n) ___________ reaction because it combines simple molecules into more complex molecules.

2. a. Is photosynthesis an endergonic or exergonic reaction?    b.  Explain why.    c. Energy from the __________ is stored in the bonds of the sugar ___________.

3. a. What serves as the carbon source for photosynthesis?

b. What serves as the carbon source for chemosynthesis?

4. Sunlight is absorbed as packets of energy called ____________.

5. Besides CO2, ___________ is also used in photosynthesis to produce

_____________ molecules such as the sugar _____________.

Overview

1. Photosynthesis is a(n) ___________ reaction because it combines simple molecules into more complex molecules.

2. a. Is photosynthesis an endergonic or exergonic reaction?    b.  Explain why.    c. Energy from the __________ is stored in the bonds of the sugar ___________.

3. a. What serves as the carbon source for photosynthesis?

b. What serves as the carbon source for chemosynthesis?

4. Sunlight is absorbed as packets of energy called ____________.

5. Besides CO2, ___________ is also used in photosynthesis to produce

_____________ molecules such as the sugar _____________.

Types of algae: Ch 20

textbook p506-515

A. Major phyla of multicellular algae

1. Phaeophyta

Macrocystis pyrifera

Nereocystis

2. Chlorophyta

Ulva oblongata

Chlamydomas

Volvox

3. Rhodophyta

coralline algae

Bossiella sp

B. Unicellular Algae

4. Chrysophyta/Bacillarophyta

Diatoms:

5. Pyrrophyta

Dinoflagellates: Gonyaulax

Pyrodinium bahamense

Purple Sulfur bacteria

Hydrothermal vent bacteria

Experiments: Factors that affect photosynthetic reaction rates:

1. Temperature lightsticks

My handout

2. pH Elodia & pH drops

http://www.biologyjunction.com/carbon_dioxide_use_in_plants.htm

3. Nutrient/energy availability Elodia & light/CO2 levels

Lab Ch 8

4. Enzymes/catalysts Liver enzymes/chromotography

http://www.biologyjunction.com/biology_projects.htm

5. Toxicity -oxygen (alternates NO3 and SO4) was toxic as

now CO is toxic

-also most substances in overabundance turn

toxic(ie.water poisoning)

NOVA videoclip http://www.youtube.com/watch?v=ENR2KNEAYEw

SUMMARY

Photosynthesis/Respiration foldable

http://www.biologyjunction.com/biology_projects.htm