Biology, 25.11.2019 06:31, YmTia06221220
Astudent is demonstrating how water moves across cell membrane to maintain homeostasis. the student uses dialysis bags, which are semipermeable and model cell membranes. the student fills each of the three bags with 100 ml of a 10% salt solution and ties the end of each bag. in beaker 1, the student places 200ml of a 5% salt solution. in beaker 3, the student places 200 ml of 20% salt solution.
what kind of environments are in beakers 1, 2, and 3?
a. beaker 1: hypertonic, beaker 2: hypotonic, beaker 3: isotonic
b. beaker 1: hypertonic, beaker 2: isotonic, beaker 3: hypotonic
c. beaker 1: isotonic, beaker 2: hypertonic, beaker 3: hypertonic
d. beaker 1: hypotonic, beaker 2: isotonic, beaker 3: hypertonic
Answers: 1
Biology, 22.06.2019 12:30, nyiapower9705
Which term most precisely describes the cellular process of breaking down large molecules into smaller ones? a) catalysis b) metabolism c) anabolism d) dehydration e) catabolism
Answers: 1
Biology, 22.06.2019 19:30, gungamer720
When it is summer at the south pole, a. the northern hemisphere is tilted toward the sun. b. the southern hemisphere is tilted away from the sun. c. the northern hemisphere is tilted away from the sun. d. both the southern and northern hemispheres are tilted toward the sun.
Answers: 1
Biology, 23.06.2019 02:00, americanbellabeauty
Amembrane protein is made and inserted into the membrane of the rough endoplasmic reticulum. a binding site that is present in this protein is aligned so that it faces the lumen of the er. if this protein is then moved to other endomembranes, at which surface of the membranes given below is this binding site unlikely to be found? a. internal face of the golgi apparatus membranes b. the internal face of lysosome membrane c. facing the intermembrane space of the nuclear envelop membranes d. the lumen face of the vesicle just derived from the golgi apparatus e. the cytosolic face of the plasma membrane
Answers: 3
Astudent is demonstrating how water moves across cell membrane to maintain homeostasis. the student...
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