Study sets, textbooks, questions
Upgrade to remove ads
Cell Biology Exam 1
Terms in this set (26)
Functions of Proteins
Enzymes - catalyze reactions
Move molecules and ions across the membranes
Name a tenet of cell theory.
All living organisms are made of one or more cells
All cells arise from pre-existing cells
Which microscope is best suited to study the detailed surface of cells?
Scanning Electron Microscope
means "before nucleus"
Bigger in size
Several DNA molecules
means "before neucleus"
Smaller in size
A molecule that shares its electrons unequally between its atoms is
Protein Shape Determines ___________
Where are hydrophobic interactions most likely to occur
The CORE of a water soluble protein
Two atoms are connected to each other by a type of covalent bond, but they are unable to rotate relative to one another. Which of the following could be TRUE?
A. They are connected by a single bond.
B: They are connected by a double bond.
C: They are connected by a triple bond.
D: They are connected by a double or triple bond.
They are connected by a double or triple bond
a polymer is made of many?
Water is sometimes called the 21st amino acid because of its importance in defining protein structure. The basis for this is the so-called hydrophobic effect. What BEST describes the hydrophobic effect
Non-polar regions of the protein are repelled by water, driving them to the interior of the molecule.
The tertiary structure of a protein is determined by
the primary structure of a protein
Which of the following types of noncovalent bonds is NOT responsible for maintaining the conformation of proteins?
Option A: Ionic bond
Option B: Peptide bond
Option C: Hydrogen bond
Option D: van der Waals forces
Which of the following molecules is likely to contain nonpolar regions and also likely to be inert?
Option A: proteins
Option B: waxes
Option C: fats
Option D: Both waxes and fats
Waxes and Fats
Water has extraordinary properties to support life such as the capacity to:
Option A: form hydrogen bonds with up to four other water molecules.
Option B: evaporate easily at relatively low temperatures.
Option C: dissolve a very limited number of substances.
Option D: prevent forming interactions with many other chemicals.
Form Hydrogen bonds with up to 4 other water molecules
Sets with similar terms
Cell Membrane Structure & Function Chapter 3
Chapter 1: Plasma Membrane SAC
Biology Chapter 5
Other sets by this creator
Exam 1 Pretest Questions & Handfed questions durin…