692658
Questão 1
Questão
Molecules in food contain chemical energy that cells use to produce ATP. Food also supplies raw materials your body needs to build and repair tissues.
Responda
- True
- False
Questão 2
Questão
why do we need to eat?
Responda
-
we eat to gain energy
-
food supplies raw materials used to build and repair body tissues
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both of the above
-
neither of the above
Questão 3
Questão
nutrients are substances in food that supply the energy and raw materials your body needs for growth, repair and maintenance.
Responda
- True
- False
Questão 4
Questão
the nutrients that the body needs include:
Responda
-
water, carbohydrates and fats
-
water, carbohydrates, fats and minerals
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water, carbohydrates, fats and proteins
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water, carbohydrates, fats, proteins, vitamins and minerals
Questão 5
Questão
water is the most important nutrient because:
Responda
-
every cell in the human body needs water
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many of the body's processes including chemical reactions take place in water
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water makes up the bulk of blood, extracellular fluid and other bodily fluids
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water can be lost from the body when you sweat, in urine and with every breath you exhale
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humans need at least 1 liter of fluid each day
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all of the above
Questão 6
Questão
simple and complex carbohydrates are a major source of energy
Responda
- True
- False
Questão 7
Questão
fats help the body as they
Responda
-
absorb fat soluble vitamins
-
are part of cell membranes, nerve cells and certain hormones
-
both of the above
-
neither of the above
Questão 8
Questão
when there are only single bonds between the carbon atoms in the fatty acids, each carbon atom has the maximum number of hydrogen atoms and the fat is said to be
Responda
-
saturated
-
unsaturated
Questão 9
Questão
these fats have one or more double bonds between carbon atoms which reduces the number of hydrogen atoms in their fatty acids.
Responda
-
saturated fats
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unsaturated fats
Questão 10
Questão
these fats are usually liquid at room temperature, such as vegetable oil
Responda
-
saturated fats
-
unsaturated fats
Questão 11
Questão
unsaturated fats that are modified by adding hydrogen to them or processed are
Responda
-
trans fats
-
saturated fats
Questão 12
Questão
these fats are solid at room temperature and have a longer shelf life
Responda
-
saturated fats
-
unsaturated fats
-
trans fats
Questão 13
Questão
because many vegetable oils contain more than one double bond, they are called
Responda
-
saturated
-
polyunsaturated
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unsaturated
Questão 14
Questão
proteins have a variety of roles in the body including:
Responda
-
proteins supply raw materials for growth and repair of structures such as skin and muscle
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many enzymes that control chemical chemistry by increasing the rates of chemical reactions are made of proteins
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proteins have regulatory and transport functions (e.g., insulin is a protein that regulates blood sugar levels and hemoglobin, a protein found in red blood cells helps transport oxygen )
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proteins can be used as energy sources when other nutrients such as carbohydrates are in short supplu
-
all of the above
Questão 15
Questão
proteins are polymers of amino acids
Responda
- True
- False
Questão 16
Questão
the body is able to synthesize 12 of the 20 amino acids used to make proteins and the other 8 are called essential amino acids
Responda
- True
- False
Questão 17
Questão
organic molecules that the body needs in very small amounts are called vitamins
Responda
- True
- False
Questão 18
Questão
most vitamins are needed by the body to help perform chemical reactions
Responda
- True
- False
Questão 19
Questão
there are two types of vitamins
Responda
-
fat soluble and water soluble
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unsaturated and saturated
Questão 20
Questão
these vitamins are fat soluble
Responda
-
A,C, D, E
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A, D ,E, K
Questão 21
Questão
water soluble vitamins include
Responda
-
C, D,,B
-
C, B
Questão 22
Questão
fat soluble vitamins can build up small deposits of these vitamins for future use, but water soluble vitamins dissolve in water and cannot be stored in the body and therefore should be included in foods eaten each day
Responda
- True
- False
Questão 23
Questão
inorganic nutrients that the body needs usually in small amounts are called minerals
Responda
- True
- False
Questão 24
Questão
a balanced diet provides nutrients in adequate amounts and enough energy for a person to maintain a healthful weight
Responda
- True
- False
Questão 25
Questão
a balanced diet provides nutrients in adequate amounts and enough energy for a person to maintain a healthful weight
Responda
- True
- False
Questão 26
Questão
food labels can be used to choose healthful foods because:
Responda
-
they provide general information about nutrition
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they provide specific information about the product
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they can be used to determine if you are consuming enough of some of the important vitamins and minerals
-
all of the above
-
none of the above
Questão 27
Questão
when using food labels it is important to remember that percent daily values are based on a 2000 calorie diet
Responda
- True
- False
Questão 28
Questão
people who are more active than average have greater energy needs and when a person stops growing or becomes less active their need for energy decreaes
Responda
- True
- False
Questão 29
Questão
these factors contribute to the rise of obesity in the US over the last several decades
Responda
-
inactive lifestyles
-
high calorie diets
-
both of the above
Questão 30
Questão
The American Heart Association recommends a diet with a maximum of 30% of calories from fat, of which only 7% should be from saturated fats and 1% from trans fats
Responda
- True
- False
Questão 31
Questão
fat contains about 9 calories per gram and carbohydrate and protein contain 4 calories per gram
Responda
- True
- False
Questão 32
Questão
foods that contain a high amount of any type of fat are high in calories
Responda
- True
- False
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