From: Promoting productive argumentation through students' questions
Turn of talk | Student | Discourse |
---|---|---|
15 | L: | What if she was killed by intravenous injection then later dumped into the river? |
16 | S: | Now if bubbles not tapped out….then this path forward from bubbles to cardiac muscle death and path backwards to XY on karyotype still make sense. |
17 | L: | Yah, agree, then dumped into river after death. |
18 | Y: | Okay for the drowning part...on our map, drowning so means lungs must be filled with water…water in lungs … river water entered lungs …pressure differences…Hmm…so it is possible! |
19 | L: | From water in lungs …water diffused into bloodstream and increased water potential …water entered RBC cells by osmosis … RBC lysed….release K+ ions… detected high in blood plasma |
20 | C: | Hey…this can also lead to high k + ions in blood plasma. Maybe the high is from both sources. |