HBIO 202 Term 1 Exam Questions With 100%
Verified Answers!!
Nutrients
Chemical compounds in foods to 1) provide fuel for energy, growth, maintenance, and 2) to
regulate body processes.
Kilocalories
A unit of energy; the amount of energy needed to raise the temperature of 1 kilogram of water by
1°C
Metabolism
One of the bodily processes regulated by vitamins, minerals, and water.
Reasons for food choices
1) Taste + culture; 2) social reasons + trends; 3) cost, time + convenience; 4) habits and emotions
Nutrition
The science that studies how nutrients and compounds in foods nourish and affect body functions
+ health
Importance of nutrition
Deficiencies, excesses, and imbalances of nutrients can effect health; and good nutrition plays a
role in reducing the risk of many chronic diseases (inc. heart disease, cancer and stroke).
The 6 Classes of Nutrients
Carbohydrates (sugars), lipids (fats), proteins, vitamins, minerals, and water
Macronutrients
1) Energy-yielding nutrients 2) the body needs in higher amounts; they are the 3) organic
compounds carbohydrates (sugars), lipids (fats), and proteins. 4) They also contain hydrogen and
oxygen
, Micronutrients
1) Essential nutrients which 2) the body needs in smaller amounts; 3) they are vitamins (organic)
and minerals + trace minerals (inorganic); 4) these are non-fuel nutrients
Organic
Compounds containing carbon
Inorganic
Compounds not containing carbon
Carbohydrates (Sugars)
1) A type of macronutrient + organic compound which is 2) the major source of energy for our
bodies 3) by supplying glucose; 4) contains hydrogen and oxygen in addition to carbon
Monosaccharides
A carbohydrate compound with one (1) sugar molecule. Examples include glucose, fructose,
galactose, and ribose.
Disaccharides
A carbohydrate compound with two (2) sugar molecules. Examples include sucrose and lactose.
Complex Carbohydrates
A carbohydrate compound with more than two (2) sugar molecules. Examples include glycogen
and starch.
Lipids (Fats)
1) A type of macronutrient + organic compound which is 2) another major source of energy for
our bodies which also 3) cushions organs and insulates the body; 4) also contains hydrogen and
oxygen
Roles of Lipids
1) Provide structure via membranes, 2) signals via hormones, 3) energy, 4) insulation and
protection, and 5) acts as a solvent.
Verified Answers!!
Nutrients
Chemical compounds in foods to 1) provide fuel for energy, growth, maintenance, and 2) to
regulate body processes.
Kilocalories
A unit of energy; the amount of energy needed to raise the temperature of 1 kilogram of water by
1°C
Metabolism
One of the bodily processes regulated by vitamins, minerals, and water.
Reasons for food choices
1) Taste + culture; 2) social reasons + trends; 3) cost, time + convenience; 4) habits and emotions
Nutrition
The science that studies how nutrients and compounds in foods nourish and affect body functions
+ health
Importance of nutrition
Deficiencies, excesses, and imbalances of nutrients can effect health; and good nutrition plays a
role in reducing the risk of many chronic diseases (inc. heart disease, cancer and stroke).
The 6 Classes of Nutrients
Carbohydrates (sugars), lipids (fats), proteins, vitamins, minerals, and water
Macronutrients
1) Energy-yielding nutrients 2) the body needs in higher amounts; they are the 3) organic
compounds carbohydrates (sugars), lipids (fats), and proteins. 4) They also contain hydrogen and
oxygen
, Micronutrients
1) Essential nutrients which 2) the body needs in smaller amounts; 3) they are vitamins (organic)
and minerals + trace minerals (inorganic); 4) these are non-fuel nutrients
Organic
Compounds containing carbon
Inorganic
Compounds not containing carbon
Carbohydrates (Sugars)
1) A type of macronutrient + organic compound which is 2) the major source of energy for our
bodies 3) by supplying glucose; 4) contains hydrogen and oxygen in addition to carbon
Monosaccharides
A carbohydrate compound with one (1) sugar molecule. Examples include glucose, fructose,
galactose, and ribose.
Disaccharides
A carbohydrate compound with two (2) sugar molecules. Examples include sucrose and lactose.
Complex Carbohydrates
A carbohydrate compound with more than two (2) sugar molecules. Examples include glycogen
and starch.
Lipids (Fats)
1) A type of macronutrient + organic compound which is 2) another major source of energy for
our bodies which also 3) cushions organs and insulates the body; 4) also contains hydrogen and
oxygen
Roles of Lipids
1) Provide structure via membranes, 2) signals via hormones, 3) energy, 4) insulation and
protection, and 5) acts as a solvent.
