Question: For which molecules and ions (phenolphthalien,iodine, starch, na+,oh-, water) does your experiment give evidence for passage through the semipermeable dialysos membrane? in which direction(into or out of the bag) are the molecules moving?Question: What characteristics was different in those molecules and ions passing through the membrane from those that did not […]

Suppose that a dog breeder has asked you for advice. The breeder keeps Alaskan huskies, which she races in sledding events. She would like to breed huskies that run faster.The table below gives data on the running speeds (m/s) of fifteen families of dogs in the breeder’s kennel. Use a […]

Question: William Astbury discovered that the x-ray diffraction pattern of wool shows a repeating structural unit spaced about 5.2 Å along the length of the wool fiber. When he steamed and stretched the wool, the x-ray pattern showed a new repeating structural unit at a spacing of 7.0 Å. Steaming and […]

Digestive System Be able to list and label regions of the digestive tract and the accessory organs of the digestive system Be able to trace food from the mouth, through the body, and exiting the body What is the term for excreting solid waste and understand the physiology behind contracting […]