In the lab, you choose to design a simple experiment to distinguish between hydrophilic and hydrophobic substances. You start by adding equal amounts of vinegar and oil to a container. After shaking, the vinegar and oil levels separate, based upon polarity and density. To this you add glucose and sodium citrate and shake again. Where do you expect to find the glucose and sodium citrate in
greatest quantities?
A) Both will concentrate in the oil layer.
B) The glucose will concentrate in the vinegar, sodium citrate in the oil.
C) Both will concentrate in the vinegar layer.
D) Sodium citrate will concentrate in the vinegar, glucose in the oil.
E) Both will be uniform throughout both layers.
C) Both will concentrate in the vinegar layer.
You might also like to view...
Which of the following is true in the moss life cycle?
a. Gametophytes originate within and are dependent upon sporophytes. b. Sporophytes originate within and are dependent upon gametophytes. c. Both gametophytes and sporophytes are totally independent from each other and are equally dominant. d. Gametophytes are free-living and photosynthetic, but are replaced by a dominant sporophyte generation. e. Gametophytes are photosynthetic and partially independent from the sporophytes.
Considering that virtually all cells in any given individual contain the same genetic information, how is it possible to
have different cell types with unique functions? a. Gene expression is regulated such that different cell types produce different proteins. b. All cells express all proteins encoded in an organism’s genes, but turn them on selectively. c. Gene expression is regulated based on the age of the organism. d. Only some cell types make protein products, while others do not. e. Cells lose unneeded genes with each cell division.
Sex-linked traits affect only sexual characteristics
Indicate whether the statement is true or false
Salts are produced from exchange reactions in which acids and bases neutralize each other
Indicate whether the statement is true or false