Photosynthesis Crossword

2. an electron carrier in a chloroplast.
5. organisms that make their own food.
6. sacs which are interconnected in a chloroplast.
7. high intensity increases the rate of photosynthesis but eventually levels off.
8. a compound that can accept a pair of high-energy electrons and transfer them, along with most of their energy, to another molecule.
9. organisms that obtain food by consuming other living things.
12. require the direct involvement of light and light-absorbing pigments.
14. the fluid portion outside of the thylakoids.
15. stacks of thylakoids.
17. makes ATP by facilitated diffusion by chemiosmosis.
20. an orange pigments in plants.
22. using sunlight energy to produce high-energy carbohydrates.
23. uses 6 molecules of carbon dioxide to produce a single 6-carbon sugar molecule.
24. absorb light and are used by plants gather the sun’s energy.
25. takes place inside organelles called chloroplasts.

1. passes the high energy electrons along, pumping hydrogen ions into the thylakoid space.
3. reenergizes the electrons, which make NADPH.
4. ATP and NADPH used to produce high-energy sugars from carbon dioxide.
10. a shortage can slow or even stop photosynthesis, like in a desert.
11. the ability to do work.
13. consists of adenine, a 5-carbon sugar called ribose, and three phosphate groups.
16. are members of the Crassulacae family, such as cacti and succulents.
18. a green pigment in plants.
19. the reactions of photosynthesis are made possible by enzymes that function best between 0 degrees C and 35 degrees C.
21. Water is split to release electrons, along with hydrogen and oxygen.
23. have a specialized chemical pathway that allows them to capture even very low levels of carbon dioxide and pass it to the Calvin cycle.