Kaplan Questions Flashcards
What can denature proteins
High salt concentrations, detergents and high temperatures
Will a protein denature if it’s led to a hypotonic environment
No sir
Can proteins self-replicate
No
Bacteria that are unable to live in the presence of oxygen are referred to as:
Obligate Anaerobes
Describe Obligate aerobes
They need oxygen to survive because they rely on aerobic respiration
Describe Facultative anaerobes
They grow with / without oxygen, but prefer more oxygen so ATP can be produced
Describe Microaerophiles
need oxygen to survive, but they are poisoned by high concentrations of oxygen
Describe Aerotolerant organisms
Do not require oxygen but aren’t poisoned by it either
In the vertebrate nervous system, the term “Node of Ranvier” refers to
The gap between the myelin sheath segments
Histones are a kind of protein that is known to play a very important role in packaging DNA into chromatin. What of the following characteristics about histones is true?
They are responsible for the supercoiling of DNA
