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10 Cards in this Set
- Front
- Back
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DEFINE PHOTOSYNTHESIS |
PHOTOSYNTHESIS IS A PROCESS BY WHICH THE PLANTS MAKE THEIR FOOD USING CARBON DIOXIDE AND WATER. COMBINED WITH WITH LIGHT ENERGY, THIS PROCESS PRODUCES SUGAR (GLUCOSE) AND STARCH. ANOTHER PRODUCT (OR BY-PRODUCT) OF PHOTOSYNTHESIS IS OXYGEN, WHICH IS USED BY OTHER LIVING THINGS. |
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WHAT IS THE CHEMICAL EQUATION AND THE WORD EQUATION OF PHOTOSYNTHESIS? |
6CO2 + 6H2O ---------- C6H12O6 + 6O2 CARBON DIOXIDE + WATER ---------------
GLUCOSE + OXYGEN |
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WHY DO PLANTS HAVE GREEN COLOR? |
THE GREEN COLOR IS BECAUSE OF THE CHEMICAL CALLED CHLOROPHYLL. IT IS IMPORTANT FOR PHOTOSYNTHESIS AS IT HELPS PLANTS GROW AND MAKE OXYGEN. |
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WHERE IS CHLOROPHYLL STORED? |
CHLOROPHYLL IS STORED IN ORGANELLES CALLED CHLOROPLASTS. |
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HOW DOES THE SHAPE OF THE LEAVES HELP THEM IN PHOTOSYNTHESIS? |
BROAD, FLAT AND THIN SHAPE OF THE LEAVES PROVIDES A LARGE SURFACE AREA, IDEAL FOR THE ABSORPTION OF CARBON DIOXIDE AND SUNLIGHT. |
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EXPLAIN THE PROCESS OF PHOTOSYNTHESIS |
PHOTOSYNTHESIS IS A SERIES OF COMPLICATED REACTIONS CONTROLLED BY ENZYMES. CO2 ENTERS THE LEAVES THROUGH THE STOMATA BY DIFFUSION. WATER IS CARRIED TO THE LEAF IN THE XYLEM. THEY BOTH PASS INTO THE CHLOROPLAST WHERE THE LIGHT ENERGY IS ABSORBED BY CHLOROPHYLL. ALL THESE SUBSTANCES BECOME A PART OF CHEMICAL REACTION THAT PRODUCES GLUCOSE AND OXYGEN. |
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WHAT HAPPENS TO GLUCOSE AFTER IT IS PRODUCED IN THE LEAF? |
GLUCOSE IS CONVERTED TO STARCH AND IS STORED IN THE LEAF UNTIL IT IS NEEDED AS FOOD FOR THE PLANT. |
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WHAT IS THE EXTERNAL STRUCTURE OF A LEAF? |
- AXIL - LAMINA - LEAF APEX - MID-RIB - PETIOLE - STEM - STIPULE - VEIN |
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WHAT IS THE JOB OF THE WAXY CUTICLE ON THE SURFACE OF THE LEAVES? |
WAXY CUTICLE PREVENTS WATER LOSS. |
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WHY ARE MOST OF THE PORES THAT LOSE WATER FOUND ON THE BOTTOM SURFACE OF THE LEAVES? |
IN ORDER TO REDUCE THE TRANSPIRATION, THE PORES ARE ON THE BOTTOM SURFACE OF THE LEAVES. |
