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Semester 1 Retest
Term | Definition |
---|---|
communication | the process of sharing ideas and experimental findings with others through writing and speaking. |
observing | using one of more of your senses to gather information. |
making models | creating representations of complex objects or processes. |
scale model | this accurately shows the proportions between its parts. |
inferring | explain or interpret things you observe. |
classifying | the process of grouping things based on their similarities. |
quantitative observations | an observation that deals with a number or amount. |
organ system | a group of organs that work together to perform a major function. |
multi-cellular | composed of many cells. |
cell theory | a widely accepted explanation of the relationship between cells and living things. |
organelles | small structures that carry out specific functions within the cell. |
mitochondria | rod-shaped structures that convert energy in food molecules to energy the cell can use. |
ribosome | small, grain like bodies that function as factories to produce proteins. |
chloroplast | captures energy from sunlight and uses it to produce food. |
endoplasmic reticulum | helps form proteins and other materials, and also carries materials throughout the cell. |
tissue | a group of similar cells that perform the same function |
heterotroph | an organism that cannot make its own food |
autotroph | an organism that makes its own food. |
stomata | small openings on the undersides of leaves allowing for carbon dioxide to enter the plant. |
photosynthesis | the process by which a cell captures energy from sunlight and uses it to make food. |
chlorophyll | the main photosynthetic pigment in chloroplasts. |
fermentation | an energy-releasing process that does not require oxygen. |
hyposthesis | a possible explanation for a set of observations or answers to a scientific questions. |
science | a way of learning about the natural world. |
data | facts, figures, and other evidence gathered through observations. |