Nhm 362 Exam 2 NEwEst 2025/2026 actual Exam complEtE
all QuEstioNs aNd corrEct dEtailEd aNswErs (VErifiEd
aNswErs) |alrEady GradEd a+
What are the important characteristics for Fatty Acids? - DETAILED ANSWER-Length
of the chain or number of carbons
Number of double bonds
Carboxylic acid end
Methyl end
Delta System - DETAILED ANSWER-Includes:
#of carbons
# of double bonds in the chain and the location of those double bonds counting
from the COOH group.
*you start at the COOH group when counting
*little triangle is used
*starts at the carboxylic acid end
Omega System - DETAILED ANSWER-Includes:
# of carbons in the chain
# of double bonds and location of the first double bond
#double bonds are separated by three carbons, so if you know the location of the
first double bond you can determine the others.
,*starts at the methyl end
The omega system starts at which end? - DETAILED ANSWER-The Methyl
The delta system starts at which end? - DETAILED ANSWER-The carboxylic acid end
Triglyceride Characteristics - DETAILED ANSWER-*Adipose tissue is composed
mostly of triglycerides
*95% of dietary fat is triglycerides
*can be short, medium, or long chain fatty acids
*can be saturated, mono or polyunsaturated fatty acids
*may be some mono of diacylglycerols
Phospholipids Characteristics - DETAILED ANSWER-*Glycerol Backbone
*More polar than triglycerides and sterols
*Found on the lipoprotein particle, cell membrane and organelle membranes
*provides structural support
*source of arachidonic acid
*second messengers in cell signaling
Which lipid provides structural support and acts as a second messenger? -
DETAILED ANSWER-Phospholipid
sphinogolipids characteristics - DETAILED ANSWER-*present in cell membranes:
, highest in central nervous system
*attachment defines the type of sphingolipid: R2
*All have a fatty acid attached to an amino acid group: R1
What is the amino alcohol that is the backbone of sphingolipids? - CORRECT
ANSWER-sphingosine
What is the myelin sheath of nerve tissues? - DETAILED ANSWER-sphinogmyelin
What are cerebrosides? - DETAILED ANSWER-they are found on the plasma
membrane and act as insulators or facilitators of nerve impulses
R2 in sphingolipids? - DETAILED ANSWER-Attachment defines the type of
sphingolipid
R1 in sphingolipids? - DETAILED ANSWER-All sphigolipids have a fatty acid attached
to an amino acid group
What are gangliosides? - DETAILED ANSWER-found on the outside of the cell
membrane in sphingolipids, act as receptors for hormones and other ligands, also
part of recognition.
Sterol Characteristics - DETAILED ANSWER-All have 4 ring steroid nucleus
Types of Sterols - DETAILED ANSWER-Cholesterol
all QuEstioNs aNd corrEct dEtailEd aNswErs (VErifiEd
aNswErs) |alrEady GradEd a+
What are the important characteristics for Fatty Acids? - DETAILED ANSWER-Length
of the chain or number of carbons
Number of double bonds
Carboxylic acid end
Methyl end
Delta System - DETAILED ANSWER-Includes:
#of carbons
# of double bonds in the chain and the location of those double bonds counting
from the COOH group.
*you start at the COOH group when counting
*little triangle is used
*starts at the carboxylic acid end
Omega System - DETAILED ANSWER-Includes:
# of carbons in the chain
# of double bonds and location of the first double bond
#double bonds are separated by three carbons, so if you know the location of the
first double bond you can determine the others.
,*starts at the methyl end
The omega system starts at which end? - DETAILED ANSWER-The Methyl
The delta system starts at which end? - DETAILED ANSWER-The carboxylic acid end
Triglyceride Characteristics - DETAILED ANSWER-*Adipose tissue is composed
mostly of triglycerides
*95% of dietary fat is triglycerides
*can be short, medium, or long chain fatty acids
*can be saturated, mono or polyunsaturated fatty acids
*may be some mono of diacylglycerols
Phospholipids Characteristics - DETAILED ANSWER-*Glycerol Backbone
*More polar than triglycerides and sterols
*Found on the lipoprotein particle, cell membrane and organelle membranes
*provides structural support
*source of arachidonic acid
*second messengers in cell signaling
Which lipid provides structural support and acts as a second messenger? -
DETAILED ANSWER-Phospholipid
sphinogolipids characteristics - DETAILED ANSWER-*present in cell membranes:
, highest in central nervous system
*attachment defines the type of sphingolipid: R2
*All have a fatty acid attached to an amino acid group: R1
What is the amino alcohol that is the backbone of sphingolipids? - CORRECT
ANSWER-sphingosine
What is the myelin sheath of nerve tissues? - DETAILED ANSWER-sphinogmyelin
What are cerebrosides? - DETAILED ANSWER-they are found on the plasma
membrane and act as insulators or facilitators of nerve impulses
R2 in sphingolipids? - DETAILED ANSWER-Attachment defines the type of
sphingolipid
R1 in sphingolipids? - DETAILED ANSWER-All sphigolipids have a fatty acid attached
to an amino acid group
What are gangliosides? - DETAILED ANSWER-found on the outside of the cell
membrane in sphingolipids, act as receptors for hormones and other ligands, also
part of recognition.
Sterol Characteristics - DETAILED ANSWER-All have 4 ring steroid nucleus
Types of Sterols - DETAILED ANSWER-Cholesterol
