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Science concepts-5
vocabulary
Question | Answer |
---|---|
taproot system | a root system in wich there is one large root and many small, thin roots |
herbaceous stem | a stem that is soft and green |
woody stem | a stem that contains wood |
xylem | the tissue that carries water and dissolved minerals upward from the roots |
phloem | the tissue that carries dissolved food from the leaves throughout the plant |
veins | bundles of tubes that contain the xylem and phloem in the leaves |
simple leaf | a leaf in which the blade is in one piece |
compound leaf | a leaf in which the blade is divided into leaflets |
epidermis | the outer, protective layer of the leaf |
mesophyll | the middle layer of leaf tissue in which food-making occurs |
stomates | tiny openings in the upper and lower epidermis of the leaf |
photosynthesis | the food-making in plant leaves which uses sunlight |
chloroplast | a part of a green plant where photosynthesis goes on |
chlorophyll | the chemical in chloroplasts that is needed for photosynthesis |