Download Nutrition Bell Ringer

Nutrition
30 second bell ringer review
activity
Question 1
What
is a nutrient?
Answer
 Nutrients
are chemical substances
obtained by food that provide our body
with energy and allow for growth and
repair
Question 2
 Contrast
nutrients and essential nutrients
Answer
 Nutrients
are chemicals supplied by the
environment that an organism requires for
survival. Essential nutrients are nutrients
that human cells cannot synthesize.
Question 3
 Identify
dietary sources of carbohydrates.
Answer
 Carbohydrates
can come from grains,
vegetables, meats, cane sugar, beet
sugar, molasses, honey, and fruits.
Question 4
 Summarize
the diet.
the importance of cellulose in
Answer
 Cellulose
provides bulk (fiber or
roughage) that the muscular wall of the
digestive system can push against
thereby facilitating the movement of the
food/waste.
Question 5
 Explain
what happens to excess glucose
in the body
Answer
 Glucose
is stored as glycogen in the liver
and muscles. Excess glucose is also stored
as adipose tissue.
Question 6
 Explain
energy.
how fats and protein may provide
Answer
 Fatty
acid and protein segments are
converted into acetyl coenzyme A, which
can then be oxidized in the citric acid
cycle. Before fats can be used as an
energy source, they must be broken
down into glycerol and fatty acids, and
proteins into amino acids
Question 7
 Identify
dietary sources of protein.
Answer
 Meats,
fish, poultry, cheeses, nuts, milk,
eggs, cereals, and legumes are sources of
protein.
Question 8
 Distinguish
between essential and
nonessential amino acids.
Answer
 Essential
amino acids are those that must
be obtained in the diet as the body either
cannot manufacture them in sufficient
quantities or are unable to produce them
at all. A nonessential amino acid is one
that the body can produce in sufficient
quantities.
Question 9
 Distinguish
between complete and
incomplete proteins.
Answer
Answer
 Complete
proteins contain all 20 of the
essential amino acids to maintain human
body tissues and promote normal growth
and development.
 Incomplete proteins are unable, by
themselves, to maintain human tissues or
to support normal growth and
development.
Question 10
 Explain
why we consider lipids (Fats) to be
such an important energy source used by
cells. Why are they not as efficient as
carbohydrates?
Answer
 Fats
produce more than twice the energy
than carbs and proteins. They simply take
much longer to break down for use
BONUS QUESTION!!!
 Why
are Saturated fats considered to be
the BAD fats while unsaturated fats are the
GOOD fats?
Answer
Answer
 SAT
= high levels of LOW density
lipoproteins (LDL - raise cholesterol)
 UNSAT
= High levels of HIGH density
lipoproteins (HDL - lower cholesterol
Answer