Study guide: Organism Systems and Sensing
Connect internal and external structures to functions.
Ideas to explain in your own words
- Parts work together in a plant system. Roots absorb water, stems transport, leaves capture light and many flowers participate in reproduction. A part’s function is more useful than its appearance alone.
- Body systems interact; each listed function is simplified. This is general anatomy education, not diagnosis. Oxygen and nutrients must reach cells and wastes must be managed.
- Sensory receptors detect stimuli, and signals can lead to responses. A model includes stimulus, detection, processing and response. Memory can also affect a response; the model is not a complete brain description.
- A claim should name the part and explain its function. A label alone is not an explanation. Supplied descriptions distinguish direct observations from inferred functions and missing evidence.
Useful vocabulary
- root
- absorbs water and dissolved minerals
- digestive
- breaks food down and absorbs nutrients
- stimulus
- change that can be detected
- structure
- the physical part
Watch your reasoning
- Check what root and stem each mean. They describe different clues.
- Check what digestive and respiratory each mean. They describe different clues.
- Check what stimulus and receptor each mean. They describe different clues.
A worked review example
Worked reference-card problem: a card states “absorbs water and dissolved minerals”; a second states “transports and supports.” The first fits root and the second fits stem. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case. Worked reference-card problem: a card states “breaks food down and absorbs nutrients”; a second states “exchanges oxygen and carbon dioxide.” The first fits digestive and the second fits respiratory. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case. Worked reference-card problem: a card states “change that can be detected”; a second states “structure detecting the change.” The first fits stimulus and the second fits receptor. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case. Worked reference-card problem: a card states “the physical part”; a second states “what the part does.” The first fits structure and the second fits function. The reason is the described function or change, not the order of the cards or a favorite name. If their descriptions exchange places, their category labels exchange too. Keep the supplied descriptions attached to the correct case.
Make a practice plan
- Use an example from Connect plant structures. Say what happens and point to the clue that helps explain it.
- Complete Trace animal body-system functions and correct the specific misconception in its feedback.
- Resolve a changed case from Trace sensory information, then combine the four ideas in the transfer task.