Principles of Nutrition Exam 1 with
questions and correct answers
six categories of nutrients - ANS 1. carbs
2. fats
3. proteins
4. vitamins
5. minerals
6. water
what makes a nutrient organic? name them - ANS If the nutrient contains carbon atoms
Ex. Carbs, fats, proteins, and vitamins
Differentiate between the three energy nutrients: carbohydrate,
protein, and fat. - ANS *carbs supply glucose
*fats cushion organs and insulate
*proteins provide growth and maintance of muscle,tissue, and organs, making hormones,
enzymes, and antibodies,and transporting other nutrients
macronutrients - ANS carbs,fats, and proteins
micronutrients - ANS vitamins and minerals
Describe phytochemicals and their food sources. - ANS non-nutrient compounds that
contribute to health and may play a role in fighting chronic diseases, they help prevent lycopene
and prostate cancer, and they are found in plants
Calculate the calorie content of a food based on the grams of carbohydrate, protein, and fat. -
ANS carbs and protein= 4kcal/g
alcohol=7kcal/g
fats=9kcal/g
Understand the important roles that vitamins, minerals, and water
play in your diet. - ANS minerals and vitamins are essential for metabolism and assist enzymes
in speeding up chemical reactions and make co enzymes
water
*part of fluid medium in and out of cell
*helps chemical reactions
*transports nutrients and oxygen
*helps maintain body temp
, lubricants for joints, eyes, mouth, intestinal tracts
*protective cushion for organs
Understand the scientific method that is involved in nutrition research. - ANS Scientific method:
process used by scientists to generate sound research findings
Step 1: observe, ask questions, and formulate a hypothesis (idea based on observation)
Step 2: conduct an experiment to test the hypothesis
Step 3: share findings in a peer-reviewed journal (research publication for scientists)
observational research - ANS involves looking at two factors in two or more groups
experimental research - ANS involves at least two groups of subject
*experimental group: given a specific treatment
* control group: given a placebo "sugar pill"
*doubled-blind placebo controlled experiments is " gold standard" (neither scientist or subject
know which group gets treatment
who to trust - ANS Nutrition experts
*registered dietitian (RD)
*public health nutritionist
* Licensed Dietitian (LD)
Identify sources of accurate nutrition information. - ANS 1.Who runs the site?
2.Who pays for the site?
3.What is the purpose of the site?
4.Where does the information come from?
5.What is the basis of the information?
6.How is the information selected?
7.How current is the information?
8.How does the site choose links to other sites?
9.What information does the site collect about you and why?
10.How does the site manage interactions with visitors?
Describe the three key principles of a healthy diet - ANS Balance
Variety
Moderation
Define the terms nutrient density and energy density. - ANS nutrient density: refers to the
amount of nutrients a food contains in relationship to the number of calories it contains
Energy density: foods that are high in energy but low in weight and volume
Explain what the DRIs are. - ANS Dietary Reference Intakes (DRIs)
DRIs tell you how much of each nutrient you need to consume to:
questions and correct answers
six categories of nutrients - ANS 1. carbs
2. fats
3. proteins
4. vitamins
5. minerals
6. water
what makes a nutrient organic? name them - ANS If the nutrient contains carbon atoms
Ex. Carbs, fats, proteins, and vitamins
Differentiate between the three energy nutrients: carbohydrate,
protein, and fat. - ANS *carbs supply glucose
*fats cushion organs and insulate
*proteins provide growth and maintance of muscle,tissue, and organs, making hormones,
enzymes, and antibodies,and transporting other nutrients
macronutrients - ANS carbs,fats, and proteins
micronutrients - ANS vitamins and minerals
Describe phytochemicals and their food sources. - ANS non-nutrient compounds that
contribute to health and may play a role in fighting chronic diseases, they help prevent lycopene
and prostate cancer, and they are found in plants
Calculate the calorie content of a food based on the grams of carbohydrate, protein, and fat. -
ANS carbs and protein= 4kcal/g
alcohol=7kcal/g
fats=9kcal/g
Understand the important roles that vitamins, minerals, and water
play in your diet. - ANS minerals and vitamins are essential for metabolism and assist enzymes
in speeding up chemical reactions and make co enzymes
water
*part of fluid medium in and out of cell
*helps chemical reactions
*transports nutrients and oxygen
*helps maintain body temp
, lubricants for joints, eyes, mouth, intestinal tracts
*protective cushion for organs
Understand the scientific method that is involved in nutrition research. - ANS Scientific method:
process used by scientists to generate sound research findings
Step 1: observe, ask questions, and formulate a hypothesis (idea based on observation)
Step 2: conduct an experiment to test the hypothesis
Step 3: share findings in a peer-reviewed journal (research publication for scientists)
observational research - ANS involves looking at two factors in two or more groups
experimental research - ANS involves at least two groups of subject
*experimental group: given a specific treatment
* control group: given a placebo "sugar pill"
*doubled-blind placebo controlled experiments is " gold standard" (neither scientist or subject
know which group gets treatment
who to trust - ANS Nutrition experts
*registered dietitian (RD)
*public health nutritionist
* Licensed Dietitian (LD)
Identify sources of accurate nutrition information. - ANS 1.Who runs the site?
2.Who pays for the site?
3.What is the purpose of the site?
4.Where does the information come from?
5.What is the basis of the information?
6.How is the information selected?
7.How current is the information?
8.How does the site choose links to other sites?
9.What information does the site collect about you and why?
10.How does the site manage interactions with visitors?
Describe the three key principles of a healthy diet - ANS Balance
Variety
Moderation
Define the terms nutrient density and energy density. - ANS nutrient density: refers to the
amount of nutrients a food contains in relationship to the number of calories it contains
Energy density: foods that are high in energy but low in weight and volume
Explain what the DRIs are. - ANS Dietary Reference Intakes (DRIs)
DRIs tell you how much of each nutrient you need to consume to:
