Lipids: Properties and Classifications Flashcards
(58 cards)
Are a large and
diverse group of naturally
occurring organic
compounds that are
related by their solubility in
nonpolar organic solvents
(e.g. ether, chloroform,
acetone & benzene) and
general insolubility in
water.
Lipids
Greek word “Lipos” which means?
FAT-LIKE
Constitute about __%
of normal body weight
10%
___ main class of
the macronutrients
needed in human
nutrition.
Third
It contains ___, ____, ____.
Carbon,
Hydrogen and Oxygen
At room temperature,
fats are ___
Solid
At room temperature,
oils are ___
Liquid
___ in ___ but ___ in ___
(ether, chloroform, benzene and acetone)
Insoluble, Water ; Soluble, Organic Solvents
4 Kinds of Organic Solvents
ether, chloroform, benzene and acetone
Contains CARBON, HYDROGEN and OXYGEN,
sometimes contain ___ and ___.
NITROGEN, PHOSPHORUS
It is one of the primary
building blocks of all
organic matter on Earth.
Carbon
Helps in producing energy in
the body.
Hydrogen
Most living things use
this for cellular
respiration – the process by
which cells obtain energy.
Oxygen
Is an essential
nutrient to produce
amino acids, proteins,
nucleic acids,
Nitrogen
The main function of
this is in the
formation of bones and
teeth.
Phosphorous
Take part in ___ and ___ metabolism
plant, animal
In Plant Metabolism, Lipids act as ___ ___ for plant membrane.
hydrophobic barrier
In Plant Metabolism, ___ is synthesized
from ___.
fatty acids, chloroplasts
In Plant Metabolism, Lipids are stored in the form of chemical energy in seeds
for ___.
germination
In Animal Metabolism, Animal fats contain 40 to 50% ___ and remain
in the solid state (___).
saturated fatty acids, fats
In Animal Metabolism, The fat deposited in the ___ contributes to development of
metabolic disorder
liver
Lipids have ___ than water.
less specific gravity
The specific gravity of the fats is less than 1 (about ___) and, therefore, they float on ___.
0.86, water surface
___ have definite melting points.
Fats
