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Chapter 3 Extra Credit
10
compound : When two or more elements combine, they form a __________.
element : An _________ is any substance that cannot be broken down into simpler substances.
aminoacids : Protein molecules are made up of smaller molecules called __________.
diffusion : The main method by which small molecules move across the cell membrane from an area of high concentration to low.
selectivelypermeable : some substances can pass through the cell membrane while others cannot
osmosis : the diffusion of water molecules through a selectively permeable membrane
passive : a form of transport that does not require energy
active : a form of transport that requires energy
stomata : pores on the underside of leaves that collect carbon dioxide for photosynthesis
cellularrespiration : the process by which cells obtain energy from glucose
Chapter 3 Extra Credit
Across:3. | a form of transport that requires energy | 6. | the diffusion of water molecules through a selectively permeable membrane | 7. | The main method by which small molecules move across the cell membrane from an area of high concentration to low. |
| 9. | the process by which cells obtain energy from glucose | 10. | Protein molecules are made up of smaller molecules called __________. |
| | Down:1. | some substances can pass through the cell membrane while others cannot | 2. | When two or more elements combine, they form a __________. | 4. | An _________ is any substance that cannot be broken down into simpler substances. |
| 5. | pores on the underside of leaves that collect carbon dioxide for photosynthesis | 8. | a form of transport that does not require energy |
| |
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PuzzleFast.com, Noncommercial Use Only
Chapter 3 Extra Credit
Across:3. | a form of transport that requires energy | 6. | the diffusion of water molecules through a selectively permeable membrane | 7. | The main method by which small molecules move across the cell membrane from an area of high concentration to low. |
| 9. | the process by which cells obtain energy from glucose | 10. | Protein molecules are made up of smaller molecules called __________. |
| | Down:1. | some substances can pass through the cell membrane while others cannot | 2. | When two or more elements combine, they form a __________. | 4. | An _________ is any substance that cannot be broken down into simpler substances. |
| 5. | pores on the underside of leaves that collect carbon dioxide for photosynthesis | 8. | a form of transport that does not require energy |
| |
© 2014
PuzzleFast.com, Noncommercial Use Only