9. Photosynthesis

Pigments of Photosynthesis

What is a pollen grain?
a. male gametophyte
b. female gametophyte
c. male sporophyte
d. sperm

Leaf Pigments and Light

 No. Photosynthetic pigments do not strongly absorb UV light.  

 No. Photosynthetic pigments do not store energy. 

 No. Water is hydrolyzed by an enzyme in photosystem II, not by the pigment molecules. 

 No. ATP is synthesized by ATP synthase. 

Consider the energy source for photosynthesis.

The most important role of pigments in photosynthesis is to __________.

Which of the following pigments does NOT absorb yellow/orange light (650-750nm)?a) Chlorophyll a.b) Carotenoids.c) Chlorophyll b.d) &nbsp;Both a &amp; c.

 No. Plants are green because they are not absorbing the green light. 

 No. Plant pigments are more selective than this. 

 No. Plants absorb light in the visible range. 

 No. Carotenoids are accessory pigments, absorbing light in only one area of the spectrum. 

Consider the action spectrum of photosynthesis.

What is the range of wavelengths of light that are absorbed by the pigments in the thylakoid membranes?

 No. Grana are found within chloroplasts. 

 No. Both grana and cristae play a role in energy transformation. 

 No. Both contain both proteins and lipids. 

 No. Only one of the listed characteristics is correct. 

Consider the functions of chloroplasts and mitochondria.

You could distinguish a thylakoid membrane from an inner mitochondrial membrane because the thylakoid membrane would __________.

3 Major Classes of Pigments in Photosynthesis

Carotenoids, chlorophyll b and chlorophyll a.

Examples of accessory pigments for photosynthesis are:a) Chlorophyll b and carotenoids.b) Chlorophyll a and chlorophyll b.c) Chlorophyll a and carotenoids.d) Carotenoids, chlorophyll b and chlorophyll a.

Animation: Space-Filling Model of Chlorophyll

Animation: Light Energy and Pigments

Evaluate the following statements regarding seeds. Select True or False for each statement.
T/F They contain an embryo.
T/F They contain nutritive tissue for the embryo.
T/F They consist entirely of diploid cells.
T/F They are also referred to as spores.

Introduction to Photosystems

Chloroplasts, Pigments And Photosystems in Photosynthesis

 No. In fact, if a photosystem is present, just the opposite will happen&mdash;the pigments become oxidized. 

 No. The absorbed light increases the potential energy of the pigments. 

 No. The Calvin cycle is a separate, non-light-dependent pathway. 

 No. Photons come from the sun, not from a chloroplast. 

 the pigments’ electrons become excited 

When chloroplast pigments absorb light, __________.

Plant Pigments

Chloroplasts and Pigments | Biology

Separation of Pigments from the Extract of Spinach Leaves by Paper Chromatography - MeitY OLabs

Absorption Spectrum of Photosynthesis

What does it mean to say that a life cycle is gametophyte dominant versus sporophyte dominant?

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2. Chemistry

3. Water

4. Biomolecules

5. Cell Components

6. The Membrane

7. Energy and Metabolism

8. Respiration

10. Cell Signaling

11. Cell Division

12. Meiosis

13. Mendelian Genetics

14. DNA Synthesis

15. Gene Expression

16. Regulation of Expression

17. Viruses

18. Biotechnology

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20. Development

21. Evolution by Natural Selection

22. Evolution of Populations

23. Speciation

24. History of Life on Earth

25. Phylogeny

26. Prokaryotes

27. Protists

28. Plants

29. Fungi

30. Overview of Animals

31. Invertebrates

32. Vertebrates

33. Plant Anatomy

34. Vascular Plant Transport

35. Soil

36. Plant Reproduction

37. Plant Sensation and Response

38. Animal Form and Function

39. Digestive System

40. Circulatory System

41. Immune System

42. Osmoregulation and Excretion

43. Endocrine System

44. Animal Reproduction

45. Nervous System

46. Sensory Systems

47. Muscle Systems

48. Ecology

49. Animal Behavior

50. Population Ecology

51. Community Ecology

52. Ecosystems

53. Conservation Biology

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Review of Photosynthesis

Light Reactions of Photosynthesis

C3, C4 & CAM Plants

Electromagnetic Spectrum

Introduction to Photosynthesis

Leaf & Chloroplast Anatomy

Stages of Photosynthesis

Calvin Cycle

Photorespiration

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