BIO 100 EXAM 1 SDSU EXAM WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+
4 organic macromolecules - ANSWERS-carbohydrates
lipids
protein
nucleic acid
carbohydrates - ANSWERS-Contains C, H, and O atoms
short-term energy
lipids - ANSWERS-o Important macromolecules
o Various types and functions
§ Fats: energy storage molecule, 3-carbon glycerol molecule,
3 fatty acid molecules
§ Phospholipids:
· One fatty acid replaced with a PO3
,· Hydrophilic heads, hydrophobic tails
§ Sterols
· Cholesterol
· Important component of cell membranes in animals
· Regulate sexual development, maturation, and sex cell
production
· Estrogen influences memory and mood
· Testosterone stimulates muscle growth
o Dietary cholesterol can attach to and make the vessel
walls thicker and may cause serious health problems
proteins - ANSWERS-o Most diverse group of biological
molecules
o Functions:
§ Enzymes, structure/support, transport, energy source (last
resort)
nucleic acid - ANSWERS-DNA/RNA, coding for protein
synthesis
, macromolecule - ANSWERS-large molecules made up of
smaller subunits (e.g. amino acids linked together to make
proteins, polysaccharides...)
isomer - ANSWERS-each of two or more compounds with
the same formula but a different arrangement of atoms in
the molecule and different properties
peptide bonds - ANSWERS-Peptide bond: amino acids are
linked together by these
· Polypeptide: Chain of many amino acids linked by peptide
bonds
Denaturation: - ANSWERS-changes in protein structure
o Ex. Changes in pH, heat, radiation, chemicals
What is the "primary structure" of a protein? Secondary
structure? What's the relationship between protein
structure and function? - ANSWERS-Primary Structure:
linear sequence of amino acids
· Secondary structure: bends, turns and folds
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+
4 organic macromolecules - ANSWERS-carbohydrates
lipids
protein
nucleic acid
carbohydrates - ANSWERS-Contains C, H, and O atoms
short-term energy
lipids - ANSWERS-o Important macromolecules
o Various types and functions
§ Fats: energy storage molecule, 3-carbon glycerol molecule,
3 fatty acid molecules
§ Phospholipids:
· One fatty acid replaced with a PO3
,· Hydrophilic heads, hydrophobic tails
§ Sterols
· Cholesterol
· Important component of cell membranes in animals
· Regulate sexual development, maturation, and sex cell
production
· Estrogen influences memory and mood
· Testosterone stimulates muscle growth
o Dietary cholesterol can attach to and make the vessel
walls thicker and may cause serious health problems
proteins - ANSWERS-o Most diverse group of biological
molecules
o Functions:
§ Enzymes, structure/support, transport, energy source (last
resort)
nucleic acid - ANSWERS-DNA/RNA, coding for protein
synthesis
, macromolecule - ANSWERS-large molecules made up of
smaller subunits (e.g. amino acids linked together to make
proteins, polysaccharides...)
isomer - ANSWERS-each of two or more compounds with
the same formula but a different arrangement of atoms in
the molecule and different properties
peptide bonds - ANSWERS-Peptide bond: amino acids are
linked together by these
· Polypeptide: Chain of many amino acids linked by peptide
bonds
Denaturation: - ANSWERS-changes in protein structure
o Ex. Changes in pH, heat, radiation, chemicals
What is the "primary structure" of a protein? Secondary
structure? What's the relationship between protein
structure and function? - ANSWERS-Primary Structure:
linear sequence of amino acids
· Secondary structure: bends, turns and folds
