BIO 156 FINAL STUDY GUIDE QUESTIONS
AND ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT | UPDATED
2025
Isotopes have a different number of? - ANSWER Nuetrons
What spins in orbits outside the nucleus of an atom? - ANSWER Electrons
Phosphorous had an atomic number of 15 and an atomic mass of 31. How many
neutrons does phosphorous have? - ANSWER 16
The number of what determines which element an atom is? - ANSWER Protons
The hormone erythropotein increases what? - ANSWER The number or red
blood cells
All organic molecules have what? - ANSWER Carbon and covalent bonds
Atom A has 6 protons, 5 neutrons, and 6 electrons. Atom B has 6 protons, 5
neutrons, and 7 electrons. Which atom is an ion? - ANSWER Atom B
What is NOT a quality of water? - ANSWER Water is not an organic compound
,The bonds in a molecule of water are what? - ANSWER Polar Covalent
What number is more acidic? PH2, PH7, PH9? - ANSWER PH2. Lower the
number more acidic, higher numbers are more basic.
What monomer is used to make up proteins? - ANSWER Amino acids
Is Lactose, which is galactose and glucose, a disaccharide or a polysaccharide? -
ANSWER Disaccharide
Which column has smaller molecules? Column A: Sugars, Fatty Acids, Amino Acids,
Nucleotides. OR Column B: Polysaccharides, Fats/Lipids/Membranes, Proteins,
and Nucleic Acids. - ANSWER Column A contains smaller molecules
Estrogen, Cortisol, and testosterone are all examples of what? - ANSWER
Sterols
What type of carbohydrate cannot be digested by humans? - ANSWER
Cellulose
Which fatty acid is saturated? Palmitic Acid (1 double bond) or Linoleic Acid (3
double bonds) - ANSWER Palmitic Acid
What protein is a transport or carrier protein? - ANSWER Hemoglobin
, What is correct about peptide bonds? - ANSWER They are covalent bonds
between amino acids
The fatty portion of a cell membrane is called what? - ANSWER Phospholipid
Layer
Which chemical element is found in proteins but NOT in carbohydrates or lipids? -
ANSWER Nitrogen
Which part of an amino acid is the amino group? - ANSWER NH2
The fatty portion of a cell membrane is called a: - ANSWER Phospholipid
bilayer
Which of the following is NOT a component of cell membranes? - ANSWER
Starch
A red bloodcell will swell and burst when placed in what type of solution? -
ANSWER Hypotonic Solution
Movement of a molecule from an area of high concentration to an area of low
concentration is? - ANSWER Diffusion
Which of the following membrane proteins help your immune cells to target
foreign cells for destruction? - ANSWER Cell Recognition
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