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Pregunta 1
Pregunta
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.
Respuesta
- True
- False
Pregunta 2
Pregunta
why do we need to eat?
Respuesta
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we eat to gain energy
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food supplies raw materials used to build and repair body tissues
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both of the above
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neither of the above
Pregunta 3
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nutrients are substances in food that supply the energy and raw materials your body needs for growth, repair and maintenance.
Respuesta
- True
- False
Pregunta 4
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the nutrients that the body needs include:
Respuesta
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water, carbohydrates and fats
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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
Pregunta 5
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water is the most important nutrient because:
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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
Pregunta 6
Pregunta
simple and complex carbohydrates are a major source of energy
Respuesta
- True
- False
Pregunta 7
Pregunta
fats help the body as they
Respuesta
-
absorb fat soluble vitamins
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are part of cell membranes, nerve cells and certain hormones
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both of the above
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neither of the above
Pregunta 8
Pregunta
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
Respuesta
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saturated
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unsaturated
Pregunta 9
Pregunta
these fats have one or more double bonds between carbon atoms which reduces the number of hydrogen atoms in their fatty acids.
Respuesta
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saturated fats
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unsaturated fats
Pregunta 10
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these fats are usually liquid at room temperature, such as vegetable oil
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saturated fats
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unsaturated fats
Pregunta 11
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unsaturated fats that are modified by adding hydrogen to them or processed are
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-
trans fats
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saturated fats
Pregunta 12
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these fats are solid at room temperature and have a longer shelf life
Respuesta
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saturated fats
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unsaturated fats
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trans fats
Pregunta 13
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because many vegetable oils contain more than one double bond, they are called
Respuesta
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saturated
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polyunsaturated
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unsaturated
Pregunta 14
Pregunta
proteins have a variety of roles in the body including:
Respuesta
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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
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all of the above
Pregunta 15
Pregunta
proteins are polymers of amino acids
Respuesta
- True
- False
Pregunta 16
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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
Respuesta
- True
- False
Pregunta 17
Pregunta
organic molecules that the body needs in very small amounts are called vitamins
Respuesta
- True
- False
Pregunta 18
Pregunta
most vitamins are needed by the body to help perform chemical reactions
Respuesta
- True
- False
Pregunta 19
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there are two types of vitamins
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fat soluble and water soluble
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unsaturated and saturated
Pregunta 20
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these vitamins are fat soluble
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A,C, D, E
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A, D ,E, K
Pregunta 21
Pregunta
water soluble vitamins include
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C, D,,B
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C, B
Pregunta 22
Pregunta
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
Respuesta
- True
- False
Pregunta 23
Pregunta
inorganic nutrients that the body needs usually in small amounts are called minerals
Respuesta
- True
- False
Pregunta 24
Pregunta
a balanced diet provides nutrients in adequate amounts and enough energy for a person to maintain a healthful weight
Respuesta
- True
- False
Pregunta 25
Pregunta
a balanced diet provides nutrients in adequate amounts and enough energy for a person to maintain a healthful weight
Respuesta
- True
- False
Pregunta 26
Pregunta
food labels can be used to choose healthful foods because:
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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
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all of the above
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none of the above
Pregunta 27
Pregunta
when using food labels it is important to remember that percent daily values are based on a 2000 calorie diet
Respuesta
- True
- False
Pregunta 28
Pregunta
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
Respuesta
- True
- False
Pregunta 29
Pregunta
these factors contribute to the rise of obesity in the US over the last several decades
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inactive lifestyles
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high calorie diets
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both of the above
Pregunta 30
Pregunta
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
Respuesta
- True
- False
Pregunta 31
Pregunta
fat contains about 9 calories per gram and carbohydrate and protein contain 4 calories per gram
Respuesta
- True
- False
Pregunta 32
Pregunta
foods that contain a high amount of any type of fat are high in calories
Respuesta
- True
- False
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