May 2, 2017
When you take your IB exams and realize why a seven is impossible
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When you take your IB exams and realize why a seven is impossible
Writing helps with memorizing but it takes too long 😭the dilemma . . . . #iblife #ibbio #biology #ibbiology #studyblr #studygram
IB bio resources pls<3
haiii does anyone have topic 1 cells and part 2 resource links by any chance? I have a super massive test coming up so any will be appreciated <3
Building polysaccharides is just plain FUN!
How does the digestive system work?
In this activity students created a working model of the digestive system using various household items like sponges, cups, pantyhose etc...The students were given a bin full of items and had to justify why each item represented a different organ based on its structure and function. They then created a video to explain how the model worked and posted it on Vialogues. They then commented on each other’s videos and posted questions to continue the discussion.
How do muscles contract?
To explore the sliding filament theory, students built a working model of a sarcomere. The straws represented the actin and the foam sheet represented the myosin filaments. The pipecleaner wrapped around the actin was the tropomyosin. Velcro adhesive allowed the myosin heads to attach to the actin and paper fasteners allowed the myosin to cause a “power stroke” and pull the actin toward the midline.
How do antagonistic muscles work together?
To learn more about antagonistic muscle action (and throw in some review of homologous structures!) try a chicken wing dissection! Students identified and described muscles, bone, ligaments and tendons in this activity and described how antagonistic muscles cause movement in opposite directions.
How does the human elbow joint work?
In this activity, students create a working model of the human elbow joint using popsicle sticks to represent the bones and elastics to represent the muscles. This model demonstrates antagonistic muscle action of the biceps and triceps.