1|Page
NAFC NUTRITION CERTIFICATION EXAM||
QUESTIONS AND 199% CORRECT ANSWERS
ALREADY GRADED A+|| LATEST AND
COMPLETE UPDATE 2025 WITH VERIFIED
SOLUTIONS GUARANTEED A+
What is Proteomics? Why is it important? - ANSWER: the study of the
composition, structure, functions and interactions of the proteins directing the
activities of each living cell. It is important is because proteins make up virtually
everything and direct the activity of cells.
Why are proteins essential in animals' diets? - ANSWER: they cannot synthesize
all of the amino acids needed and must obtain essential amino acids from food.
What are essential amino acids? - ANSWER: amino acids that cannot be
synthesized by an organism and must be obtained through diet.
What is arguably the most important function of cells? - ANSWER: the
production of the thousands of different proteins the body needs to function.
One of the key functions of some of the cellular proteins involves what? -
ANSWER: transport of nutrients and other materials in out of the cell.
What is a cell and why is it important? - ANSWER: the basic structural, functional
and biological unit of all known living organisms. The smallest unit of life that can
replicate independently. Building blocks of life
Major components of a cell - ANSWER: Memebranous: Endoplasmic reticulum,
golgi apparatus, lysosomes, peroxisomes, mitochondria
, 2|Page
Non Membranous: cytoskelaton, microvilli, centrioles, cilia, ribosomes,
proteasomes
Tenets of cell theory - ANSWER: cells are the building blocks of all plants and
animals
all cells are produced by the division of pre-existing cells
Cells are the smallest units that perform all vital physiological functions
Each cell maintains homeostasis
Homeostasis at higher levels, reflects combined, coordinated action of many cells
What are the different structural levels of proteins? - ANSWER: Primary,
secondary, tertiary, quaternary
What are enzymes and why are they important? - ANSWER: The best known role
of protein inside the cell. They serve as a catalyst for chemical reactions. They are
highly specific and accelerate chemical reactions in metabolism and DNA
manipulation.
By what different mechanisms do nutrients get into cells? - ANSWER: Diffusion,
osmosis, filtration, facilitated diffusion, primary and secondary active transport,
endocytosis, exocytosis
What is the GI's system's primary role and why is it important? - ANSWER: This
system's role is the absorption of nutrients in food and the consumption of food is
the most abundant source of energy for the body.
What is the primary function of the circulatory system? - ANSWER: Circulation
of oxygen throughout the body including the GI tract which is the powerhouse of
energy absorption.
NAFC NUTRITION CERTIFICATION EXAM||
QUESTIONS AND 199% CORRECT ANSWERS
ALREADY GRADED A+|| LATEST AND
COMPLETE UPDATE 2025 WITH VERIFIED
SOLUTIONS GUARANTEED A+
What is Proteomics? Why is it important? - ANSWER: the study of the
composition, structure, functions and interactions of the proteins directing the
activities of each living cell. It is important is because proteins make up virtually
everything and direct the activity of cells.
Why are proteins essential in animals' diets? - ANSWER: they cannot synthesize
all of the amino acids needed and must obtain essential amino acids from food.
What are essential amino acids? - ANSWER: amino acids that cannot be
synthesized by an organism and must be obtained through diet.
What is arguably the most important function of cells? - ANSWER: the
production of the thousands of different proteins the body needs to function.
One of the key functions of some of the cellular proteins involves what? -
ANSWER: transport of nutrients and other materials in out of the cell.
What is a cell and why is it important? - ANSWER: the basic structural, functional
and biological unit of all known living organisms. The smallest unit of life that can
replicate independently. Building blocks of life
Major components of a cell - ANSWER: Memebranous: Endoplasmic reticulum,
golgi apparatus, lysosomes, peroxisomes, mitochondria
, 2|Page
Non Membranous: cytoskelaton, microvilli, centrioles, cilia, ribosomes,
proteasomes
Tenets of cell theory - ANSWER: cells are the building blocks of all plants and
animals
all cells are produced by the division of pre-existing cells
Cells are the smallest units that perform all vital physiological functions
Each cell maintains homeostasis
Homeostasis at higher levels, reflects combined, coordinated action of many cells
What are the different structural levels of proteins? - ANSWER: Primary,
secondary, tertiary, quaternary
What are enzymes and why are they important? - ANSWER: The best known role
of protein inside the cell. They serve as a catalyst for chemical reactions. They are
highly specific and accelerate chemical reactions in metabolism and DNA
manipulation.
By what different mechanisms do nutrients get into cells? - ANSWER: Diffusion,
osmosis, filtration, facilitated diffusion, primary and secondary active transport,
endocytosis, exocytosis
What is the GI's system's primary role and why is it important? - ANSWER: This
system's role is the absorption of nutrients in food and the consumption of food is
the most abundant source of energy for the body.
What is the primary function of the circulatory system? - ANSWER: Circulation
of oxygen throughout the body including the GI tract which is the powerhouse of
energy absorption.
