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43 terms

Nutrition unit 5 review questions

OCCC
STUDY
PLAY
True or false
Thirst mechanism is highly sensitive and responsive to change in fluid balance.
True
T or F
As blood volume decreases, blood pressure increases.
False
a decrease in blood volume = a decrease in blood pressure
T or F
Water is a common solevent in the body.
True
Is there more or less water content in lean tissue?
more
Which gender has more water content?
males
What is interstitial fluid.
the fluid that flows between the cells that make up a particular tissue or organ, such as musclle fibeers or the liver
An increase of electrons by atom during metabolism is ___________.
reduction
List the two most common intracellular ions.
Phosphorus
Potassium
List the two most common extracellular ions.
Chloride
Sodium
What are electrolytes?
- electrically charged minerals
- a substance that separates to form ions when dissolvedd in water
What do electrolytes do, generally?
- help regulate fluid balance
- enable nerves to respond to stimuli
- signal muscles to contract
Which groupss of peoplee (aage) are most susceeptible to dehydratiion?
elderly & infants
What issues are linked to free radical damage?
cancer
heart disease
What is the major caause of hypertension?
high intake of salt
What happens when free raddicals form in the phospholipid bilayer of a cell?
it breaks up the phospholipid bilayer which causes cell misfunction.
What role do antioxidants play in the cell membraane when free radicals form?
They stabilize the free radical.
T or F
Cell membranes are permeable to wateer but not electrolytes
True
T or F
Processed foods tend to be low in sodium and high in potassium.
False
T or F
The USA diet is often deficient in both phosphorus and chloride.
False
T or F
Limitinng salt consumption will improve the blood pressure in virtually all individuals with hypertension.
True
Julie expends 24000 cal/day, assume average environmental conditions, about how much water should she drink per day?
2400-2600 ml
Whatt is the prime reason we sweat?
maintain body temperature
Where do we get the majority of dietary chloride?
table salt
Which food has the lowest amount of sodium?
orange
canned soup
dill pickle
orange
The fluid in the bloodstream and lymps is _____________ fluid.
intravascular fluid
The fluid that flows between the cells is ____________ fluid.
interstitial fluid
The fluid outside of the body's cells, either interstitial fluid or intravascular fluid, is _____________ fluid.
extracellular fluid
The fluid held at any given time within the walls of the body's cells is ______________ fluid.
intracellular fluid
A substance composed of molecules that move past one another freely...characterized by their ability to conform to the shape of whatever container holds them.
fluid
What condition is more commmon in people who consume lots of sodium?
high blood pressure
About 90% of vitamin E is stored in the _______ ______.
adipose tissue
Are dietary supplements regulated by the FDA?
no
True or False
Night blindness results when the cone cells are deficient in vitamin A.
false
cone cells for color
rod cells for light
How do antioxidants stabilize free radicals?
donate hydrogen
True or False
Research suggests that vitamin C supplements taken daily will reduce the incidence of the common cold.
...
True or False
If you smoke, you are recommended to consume higher amounts of vitamin C.
...
True or False
Cooking foods high in carotenoids improves their bioavailability.
True
The deficiency disease associated with vitamin C is...
Scurvey
The doctor recently told John that he is anemic. John shoulld consume _____ with his iron supplement to increase its absorption.
Vitamin C
Which antioxidant enzyme system functions by neutralizing the superoxide ion?
superoxide dismutase
What is interstitial fluid?
fluid within cells that make up muscle
What are some common extracellular ions?
...
What are some common intracellular ions?
...