| A | B |
|---|
| guard cell | surrounds stomata: opens and closes |
| stomata | pore through which gases move in and out of a leaf |
| cuticle | waxy covering on leaf that reduces water loss |
| epidermis | top and bottom layers of a leaf;covered by cuticle |
| xylem | delivers water and minerals to leaf cells; part of plant vein |
| phloem | delivers sugar to other plant parts from the mesophyll |
| palisade mesophyll | where most photosynthesis occurs in a leaf |
| spongy mesophyll | loosely packed cells with many air spaces between them |
| vascular bundle sheath | surrounds the veins (phloem and xylem);tighly packed cells |
| glucose | sugar made during photosynthesis |
| oxygen | gas released during photosynthesis |
| carbon dioxide | gas required for photosynthesis |
| sun | provides the energy needed to start photosynthesis |
| autotrophs | use photosynthesis to create their food |
| photosynthesis | the conversion of light energy into chemical energy (sugar) |
| stroma | enzyme containing fluid that surrounds the thylakoids |
| chlorophyll | green pigment found in chloroplasts that captures light energy |
| chloroplast | organelle that is the site of photosynthesis |
| thylakoid | membrane bound sac that contains chlorophyll |
| light,carbon dioxide, water | the amounts of these impact the rate of photosynthesis |
| light independent reaction | 2nd step of photosynthesis; occurs in the stroma |
| light dependent reaction | 1st step of photosynthesis; occurs in the thylakoid |
