BIO250L ACTUAL QUESTIONS AND ANSWERS FULL SOLUTION STUDY GUIDE

BIO250L ACTUAL QUESTIONS AND
ANSWERS FULL SOLUTION STUDY GUIDE

●● concentration gradient
Answer: when molecules are unevenly distributed resulting in an area of
higher and lower concentration


●● what is the correlation between molecular mass and rate of diffusion
Answer: the larger and heavier the molecule the slower it will diffuse


●● osmosis
Answer: Diffusion of water through a selectively permeable membrane


●● selectivly permeable membrane
Answer: membrane that only allows certain things to come in while
keeping other things out


●● hypertonic
Answer: the concentration of solutes is greater outside the cell than
inside it


●● hypotonic

, Answer: the concentration of solutes is greater inside the cell than
outside of it


●● isotonic
Answer: the concentration of solutes is the same inside and outside the
cell


●● apical surface of epithelial tissue
Answer: layer of cells closest to the lumen


●● basal surface
Answer: The bottom layer of epithelial tissue that attaches to the
basement membrane


●● basement membrane
Answer: Cells at the base of an epithelial layer are attached to this.


●● simple epithelium
Answer: single layer of cells


●● stratified epithelium
Answer: multiple layers of cells