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P-S & Respiration
Unit 2
| Question | Answer |
|---|---|
| cellular respiration | a series of chemical reactions that convert the energy in food molecules into a usable form of energy called ATP |
| glycolysis | a process by which glucose, a sugar, is broken down into smaller molecules |
| fermentation | a reaction that eukaryotic and prokaryotic cells use to obtain energy from food when oxygen levels are low |
| photosynthesis | a series of chemical reactions that convert light energy, water, and CO2 into the food-energy molecule glucose and give off oxygen |
| producer | organisms that use an outside energy source, such as the Sun, to make their own food |
| cuticle | a waxy protective layer on leaves, stems and flowers that slows evaporation |
| cellulose | organic compound that provides support for plants and is made of chains of glucose molecules |
| vascular tissue | composed of tube-like cells that transport water and nutrients in some plants |
| rhizoid | structures that anchor a non-vascular seedless plant to a surface |
| frond | fern leaves |
| cambium | a layer of tissue that produces new vascular tissue in plants and grows between xylem and phloem |
| xylem | a type of vascular tissue in plants that carries water and dissolved nutrients from roots to stems and leaves |
| phloem | a type of vascular tissue in plants that carries dissolved sugars through the plant |
| stoma | small opening in the epidermis of plant leaves that allow gases to enter and leave |
| stimulus | any changes in an organisms's environment that cause a response |
| trophism | a response that results in plant growth toward or away from a stimulus |
| photoperiodism | a plants response to the number of hours of darkness in its environment |
| plant hormones | substances that act as chemical messengers within plants |
| spore | haploid cells in plants used for reproduction |
| pollen | forms from tissue in a male reproductive structure of a seed plant - these grains produce sperms cells |
| ovule | female reproductive structure in a seed plant - where the egg develops |
| stamen | a flowers male reproductive structure |
| pistil | a flowers female reproductive structure |
Created by:
ldobler
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