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Science Vocabulary
Science words to learn
| Term | Definition |
|---|---|
| energy | the strength & vitality required to sustain physical and mental activity. |
| cellular respiration | process that takes place in the cell and converts nutrients into ATP energy. |
| mitochondria | the organelle that performs cellular respiration |
| glycolysis | the breakdown of glucose |
| aerobic | to require oxygen |
| anaerobic | to not require oxygen |
| ATP | energy that stores and supplies the cell with energy |
| enzyme | a substance that acts as a catalyst to bring about a chemical reaction |
| photosynthesis | the process in which plants and organisms use sunlight to synthesize foods |
| chloroplasts | an organelle in which photosynthesis takes place |
| chlorophyll | the green pigment present in the chloroplasts |
| xylem | vascular tissue in plants |
| glucose | sugar |
| stomata | plural for stoma which is the pores of the epidermis in the leaf or stem of a plant |
| phloem | tissue in plants that conduct sugar and metabolic wastes downward from the leaves |
| grana | thylakoids embedded in the stroma of the chloroplast |
| palisade layer | parallel elongated cells below the epidermis of the leaf |
| spongy layer | fills the leaf between the palisade layer and the lower epidermis |
| guard cell | a pair of curved cells that surround the stoma |
| stroma | consists of connective tissues and blood vessels |