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Define each of the following terms and give example
1. Undernourishment:
2. Macronutrients:
3. Disaccharide:
4. BASAL Metabolic RATE (BMR):
Multiple Choices
1- When three fatty acid molecules combine with one molecule of glycerol, what forms?
A.
B.
C.
D.
one molecule of a triglyceride and one molecule of water
one molecule of a triglyceride and three molecules of water
three molecules of triglyceride and one molecule of water
three molecules of triglyceride and three molecules of water
2- A disaccharide is formed when two monosaccharide units react via their OH functional
groups. The linkage in a disaccharide is

A.
B.
C.
D.
H â?? to â?? O â?? to â?? H.
C â?? to â?? O â?? to â?? C.
C â?? to â?? O â?? to â?? H.
C â?? to â?? OH â?? to â?? C.
Short answer
1- What is food label tells us?
2- What are the five components should be included in your diet?
Fill in using one of the following words (NOTE: more words available than you need)
Isotopes â?? Isomer â?? glucose – HLD â?? sulfuric acid â?? monomers â?? Glucose – HCl â??
Foodprint – triglycerides â?? saturated – unsaturated â?? double â?? single â?? high â?? low â??
fat â?? plaques â??â?? low density lipoprotein â?? Omega â??
I.
The name of H2SO4 is �������. while the formula of hydrochloric acid is��..
II.
Elements that have the same number of protons and different number of neutrons are
called �������.
III.
The properties of polymers depends on the types of ������ and how they are
linked together
IV.
A ������..refers to the amount of land required per year to provide the nutritional
resources for one person.
V.
VI.
VII.
VIII.
IX.
X.
XI.
XII.
XIII.
�������� belong to the lipid family, a class of compounds that includes
cholesterol and other steroids and some complex compounds such as lipoproteins that
contain both fatty acid and protein components.
A fatty acid is ������ if the molecule contains one or more C-to-C ��� bond
between carbon atoms.
����� fatty acids contain only C-to-C �..�bonds between the carbon atoms.
There is general agreement that a diet lower in ����� is a healthier diet and a diet
���.. in saturated fats has also been shown to be healthier
When cholesterol levels increase in the blood it will contribute to the formation of
deposits called ����..
High density lipoproteins, ��� reduce serum cholesterol levels by transporting
cholesterol back to the liver for excretion and ������������ (LDL) have
a higher cholesterol content and are responsible for cholesterol deposits
������. fatty acids are essential fatty acids that we need in our diet because we
cannot produce them from other fatty acids.
However our brain cells will only function if they receive a continuous supply of ���
����.. molecules has the same chemical formula with different structure
1. Potential energy is the energy possessed by an object due to its _____________ and kinetic
energy is the energy an object has as a result of its ____________.
2. State whether the following processes are endothermic or exothermic:
a) When solid KBr dissolves in requires energy
__________
b) combustion of hydrocarbons
__________
c) conversion of water to ice
__________
3. In which direction is heat transferred when you pick up a can of soda and it feels cold to the
touch?
(a) heat travels from your hand to the soda can
(b) heat travels from the soda can to your hand
4. Match the items on the left with the type of energy they posses:
_____
_____
_____
_____
_____
a cup of hot Starbucks coffee
an elevator on the 6th floor
a spinning top
a tank of propane gas
the battery operating your cell phone
5. How many calories are in a dietary calorie?
a) 1
b) 10
A.
B.
C.
D.
E.
mechanical energy
gravitational energy
chemical potential energy
electrical energy
thermal energy
c) 100
d) 1000
6. Energy is _________________________________________________. And work is
______________________________________________________________________
7. Part II: Multiple Choice
1.
What percentage of Earth’s water is in the oceans?
A. 97.4%
B. 50%
C. 2.59%
D. 0.014%
2.
What is an aquifer?
A. a holding tank for disinfected water at the municipal water works
B. a water purification system developed by the Romans
C. a large pool of water trapped in sand and gravel below the surface of the earth
D. a solution in which the solvent is water
3.
Which correctly describes groundwater?
A. any water found above ground in lakes and rivers; usually needs treatment to remove
harmful contaminants
B. any water found above ground in lakes and rivers; usually free of harmful
contaminants
C. any water taken from aquifers; usually needs treatment to remove harmful
contaminants
D. any water taken from aquifers; usually free from harmful contaminants
4.
“Hard” water in parts of the Midwest may have a calcium ion concentration as high as 400
ppm. What is this calcium ion concentration when expressed as a percentage?
A. 40%
B. 4%
C. 0.4%
D. 0.04%
5.
The correct name for CuO is
A. copper oxide.
B. monocopper oxide.
C. copper(I) oxide.
D. copper(II) oxide.
6.
The steps in the typical purification processes for municipal drinking water are, in order,
A. filtration, distillation, chlorination, and filtration.
B. filtration, chlorination, ozonation, and flocculation.
C. filtration, flocculation, filtration, and chlorination.
D. flocculation, filtration, UV irradiation, and filtration.
7.
The main reason that water supplies are “chlorinated” is
A. to produce gels that remove solids from the water.
B. to kill disease-causing organisms in the water.
C. to soften the water.
D. to precipitate lead salts from the water as insoluble lead chloride.
8.
The drawing shows a simple way of purifying salt water. What is this process called?
A.
B.
C.
D.
filtration
distillation
ozonation
chlorination
9.
The world map shows the availability of safe drinking water around the world. Which
statement is true?
A.
B.
C.
D.
In Australia, less than 75% of the population has access to safe drinking water.
In most of Africa, more than 90% of the population has access to clean water.
In Europe and Russia, more than 10% of the population does not have access to clean
water.
In the United States and Canada, more than 90% of the population has access to clean
water.
10. The figure shows a calibration curve for the spectrometric analysis of lead in water.
According to the figure, a fair estimate of the concentration of lead in a sample with an
absorbance of 0.25 is
A.
B.
C.
D.
10 ppb.
15 ppb.
20 ppb.
25 ppb.

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