Entries by Daphne Hanson

Describe the four levels of protein structures

Describe the four levels of protein structures. Include information about the bond between amino acids, and for the third level of protein structure, discuss the other types of bond found there. Make sure you include hydrogen bonds, ionic bonds, and an example of covalent bonding. Explain why not all proteins form a quaternary structure.

Which of the following describes an example of phenotypic plasticity?

Which of the following describes an example of phenotypic plasticity? Group of answer choices Two genetically identical plants are grown in different environments. Differences in gene expression result in different phenotypes.   100 seeds randomly chosen from a population are placed in each of two environments. Those that germinate have different phenotypes.   After a […]

Which of the following is NOT a mechanism of catalysis used by enzymes?

Which of the following is NOT a mechanism of catalysis used by enzymes? Group of answer choices A) Forming a temporary covalent bond with substrate to facilitate the reaction. B) Binding more tightly to the transition state than the substrate. C) Correctly orienting substrates to interact. D) Forming a pH microenvironment to facilitate acid/base reactions […]