BIOS 256 EXAM 2 LATEST UPDATE
VERIFIED QUESTIONS & DETAILED
EXPLANATIONS GRADED A+
Professional Academic Assistance Services
What is a nutrient? - Answer: A substance used by the body for
growth and development.
What are the major nutrients? - Answer: Carbohydrates, lipids,
and proteins.
What are micronutrients? - Answer: Vitamins and minerals.
How can a healthy diet be illustrated according to MyPlate
guidelines? - Answer: Half fruits and vegetables, half grains and
proteins, with dairy represented as a glass of milk.
How many essential nutrients are there? - Answer: 45-50.
What is a calorie? - Answer: A unit of food energy, equivalent to
1 kilocalorie.
,How many calories per gram do carbohydrates and proteins
yield? - Answer: 4 calories.
How many calories per gram do lipids yield? - Answer: 9
calories.
What are carbohydrates? - Answer: Sugars and polysaccharides
from various sources.
What is glucose used for? - Answer: Fuel for ATP synthesis and
required by neurons and red blood cells.
What is the function of polysaccharides? - Answer: Provide fiber
in the diet.
What are the most abundant dietary lipids? - Answer:
Triglycerides or neutral fats.
What are the sources of saturated lipids? - Answer: Animal
sources, coconut oils, and hydrogenated shortenings.
,What are the sources of unsaturated lipids? - Answer: Plant
sources.
What are essential fatty acids? - Answer: Linoleic acid and
linolenic acid that must be consumed in the diet.
Where is cholesterol found? - Answer: Egg yolk, meats, organ
meats, shellfish, and milk.
How much of the body's cholesterol is made by the liver? -
Answer: About 85%.
What are the functions of lipids? - Answer: Absorb fat-soluble
vitamins, serve as cellular fuel, component of myelin sheaths
and cell membranes, form adipose tissues, and serve as
regulatory molecules.
What are complete proteins? - Answer: Proteins that have all
essential amino acids.
What are the sources of complete proteins? - Answer: Eggs,
milk, fish, and meats.
, What are incomplete proteins? - Answer: Proteins that are low
or lacking in one or more essential amino acids.
What are the sources of incomplete proteins? - Answer:
Legumes, nuts, and cereals.
What are the functions of proteins? - Answer: Important
structural and functional molecules in the body.
What can amino acids from proteins be used for? - Answer:
Synthesis of new molecules or burned for energy.
What factors determine the use of amino acids for energy or
synthesis? - Answer: Presence of necessary amino acids,
adequate caloric intake, and nitrogen balance.
What is positive nitrogen balance? - Answer: Proteins are built
into tissues faster than they are broken down.
What is negative nitrogen balance? - Answer: Breakdown of
protein exceeds incorporation into tissues.
VERIFIED QUESTIONS & DETAILED
EXPLANATIONS GRADED A+
Professional Academic Assistance Services
What is a nutrient? - Answer: A substance used by the body for
growth and development.
What are the major nutrients? - Answer: Carbohydrates, lipids,
and proteins.
What are micronutrients? - Answer: Vitamins and minerals.
How can a healthy diet be illustrated according to MyPlate
guidelines? - Answer: Half fruits and vegetables, half grains and
proteins, with dairy represented as a glass of milk.
How many essential nutrients are there? - Answer: 45-50.
What is a calorie? - Answer: A unit of food energy, equivalent to
1 kilocalorie.
,How many calories per gram do carbohydrates and proteins
yield? - Answer: 4 calories.
How many calories per gram do lipids yield? - Answer: 9
calories.
What are carbohydrates? - Answer: Sugars and polysaccharides
from various sources.
What is glucose used for? - Answer: Fuel for ATP synthesis and
required by neurons and red blood cells.
What is the function of polysaccharides? - Answer: Provide fiber
in the diet.
What are the most abundant dietary lipids? - Answer:
Triglycerides or neutral fats.
What are the sources of saturated lipids? - Answer: Animal
sources, coconut oils, and hydrogenated shortenings.
,What are the sources of unsaturated lipids? - Answer: Plant
sources.
What are essential fatty acids? - Answer: Linoleic acid and
linolenic acid that must be consumed in the diet.
Where is cholesterol found? - Answer: Egg yolk, meats, organ
meats, shellfish, and milk.
How much of the body's cholesterol is made by the liver? -
Answer: About 85%.
What are the functions of lipids? - Answer: Absorb fat-soluble
vitamins, serve as cellular fuel, component of myelin sheaths
and cell membranes, form adipose tissues, and serve as
regulatory molecules.
What are complete proteins? - Answer: Proteins that have all
essential amino acids.
What are the sources of complete proteins? - Answer: Eggs,
milk, fish, and meats.
, What are incomplete proteins? - Answer: Proteins that are low
or lacking in one or more essential amino acids.
What are the sources of incomplete proteins? - Answer:
Legumes, nuts, and cereals.
What are the functions of proteins? - Answer: Important
structural and functional molecules in the body.
What can amino acids from proteins be used for? - Answer:
Synthesis of new molecules or burned for energy.
What factors determine the use of amino acids for energy or
synthesis? - Answer: Presence of necessary amino acids,
adequate caloric intake, and nitrogen balance.
What is positive nitrogen balance? - Answer: Proteins are built
into tissues faster than they are broken down.
What is negative nitrogen balance? - Answer: Breakdown of
protein exceeds incorporation into tissues.
