Would a chemical that is cytotoxic to brine shrimp cells necessarily have the same effect on Fast Plant cells? Explain.
What will be an ideal response?
No. Plant cells and animal cells have different structures (e.g., cell walls) that may change the way the cell responds to the chemical. The cells may also have different metabolic capabilities to metabolize the chemicals.
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A marine biologist visits your biology class and begins his talk entitled, "Life as a Trochophore." A friend seated next to you asks, "What is a trochophore?" You explain that a trochophore is
A. another name for the veliger stage in earthworm reproduction. B. a term used to describe a larval form of either the phylum Mollusca or Annelida. C. another name for the veliger stage in the oyster. D. similar to a lophophore, but only found in the phylum Annelida. E. a parasite in the intestines of a bivalve mollusk.
Secondary protein structure is dependent on
a. hydrophobic interactions. b. hydrogen bonds between two amino acids. c. covalent linkages between carbons and nitrogens of adjacent amino acids. d. covalent linkages between carbons and oxygens of adjacent amino acids. e. all of these.
Which of the following parameters could affect
the shape of a protein?
a. heat b. low pH c. detergents d. high pH e. all of these
What DNA modifications characterize epigenetic marks?
What will be an ideal response?