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NAFC Nutrition Certification: Questions & Correct Solutions (100%)
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NAFC Nutrition Certification: Questions & Correct Solutions (100%)
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NAFC Nutrition Certification: Questions & CorrectSolutions (100%)
What is Proteomics? Why is it important? Right Ans - 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? Right Ans - they cannot
synthesize all of the amino acids needed and must obtain essential amino
acids from food.
What are essential amino acids? Right Ans - amino acids that cannot be
synthesized by an organism and must be obtained through diet.
What is arguably the most important function of cells? Right Ans - 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?
Right Ans - transport of nutrients and other materials in out of the cell.
What is a cell and why is it important? Right Ans - 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 Right Ans - Memebranous: Endoplasmic
reticulum, golgi apparatus, lysosomes, peroxisomes, mitochondria
Non Membranous: cytoskelaton, microvilli, centrioles, cilia, ribosomes,
proteasomes
Tenets of cell theory Right Ans - 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? Right Ans - Primary,
secondary, tertiary, quaternary
What are enzymes and why are they important? Right Ans - 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? Right Ans -
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? Right Ans -
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? Right Ans -
Circulation of oxygen throughout the body including the GI tract which is the
powerhouse of energy absorption.
What role does the respiratory system play in nutrition? Right Ans -
supplies oxygen to the circulatory system.
What role does the lymphatic system play in nutrition? Right Ans -
supports elimination of waste products in the body.
What role does the endocrine system play in nutrition? Right Ans -
Regulation of hunger
appetite & digestion
Entry of nutrients into cells (insulin)
Mobilization of energy (glucagon, Lipase, Gh-growth Hormone, cortisol)
Anabolic (muscle building or healing)
Catabolic (muscle breakdown)
What is the most important nutrient and why? Right Ans - Oxygen. Oxygen
is NOT stored in the body and must be continuously supplied by respiration.
Oxygen deprivation is the at-root cause of all cancer.
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