In class MC Flashcards
What temperature range allows for fastest bacterial growth on food?
4 -57 degrees celsius
A 10 y/o boy has a BMI at the 90th percentile. What does that mean?
The boy weighs LESS than 10% of his peers and is considered overweight
What is the difference in growth spurts between boys and girls?
Occurs earlier in girls than boys
Describe Pepsinogen
In its active form, it begins the digestion of food proteins
What is considered a macronutrient
Carbohydrates
Lipids
Proteins
What are not considered macronutrients?
Vitamins
What are the two major functions of the digestive system?
Absorption and digestion
How does type one diabetes occur?
The bodies immune system destroys the pancreatic cells that produce insulin.
What causes lactose intolerance?
When the body does not create enough of the enzyme lactese
What eating disorder does the following demonstrate characteristics of? “I was good today- I was in control. For breakfast I had half an apple, for lunch, half a piece of toast and for dinner broth.
Self starvation- characteristic of anorexia nervosa
What ED does the following description explain? “ I was really depressed by the results of my exam so I bought a tub of ice cream and some chocolate bars and ran on the treadmill for 2 hours.
Binge-eating with non-purging compensating behaviour
Describe aerobic capacity
A measure of how long a person can perform a physical task such as running or climbing
What is the best way to describe the relationship between fitness and body composition?
As a person becomes more fit, the proportion of muscle in the body increases
What is the main difference between the nutritional needs of a serious athlete and those of a casual exerciser?
The amount of energy and fluid needed
What is a valid description of the vitamin status of Canadian teens
Vitamin A intake for both girls and boys is of concern
What causes the basal metabolic rate (BMR) to decrease by 2-3% every decade after the age of 20?
Reduction of lean body mass and a decrease in physical activity are the root cause of the decrease in BMR
What decreases the likelihood of food borne illnesses?
Thoroughly cooking hamburger, chicken and eggs
Storing food properly
Preventing cross contamination
What are the most common foods implicated in cases of salmonella food borne infection?
Eggs and chicken
What were the results of the canadian community health survey (CCHS) survey on the factors that contribute to good health?
The more health-promoting factors a person has in his/her life the greater his/her overall good health in both older and younger adults.
Obesity is on the rise in almost all countries. What is being described?
Globesity
A decreased growth in height in children, what is being described?
Stunting
Currently what bears the LEAST responsibility for worldwide food shortages?
Inability of worldwide food providers to keep up with consumption
What is the single GREATEST cause of food insecurity?
Poverty
What does NEAT stand for?
Nonexercise activity thermogenesis
Define NEAT
The energy spent for everything we do outside of sleeping, eating or sports like exercise
Give an example of NEAT movement
Walking from your apartment to work
What does TEF mean?
Thermic effect of food
Define TEF
energy required for digestion, absorption and metabolism of food and nutrients
How much energy does TEF take up?
10% of daily energy intake
How much energy does NEAT take up?
15% of daily energy intake
Where does the most common contamination occur in food consumption
When the food is consumed
What is the source of giardia?
Fecal contamination of water and undercooked foods
What are the symptoms of giardia?
diarrhea, abdominal pain, gas, anorexia, nausea, vomiting
How long is the onset of giardia?
5-25 days
What is the duration of giardia?
1-2 weeks but may become chronic
What is the source of Salmonella?
Fecal contamination, raw or undercooked eggs and meat, especially poultry
What is the source of Escherichia (E) coli?
fecal contamination, undercooked
What are the symptoms of E coli?
abdominal pain, bloody diarrhea
What are symptoms of salmonella?
Nausea, abdominal pain, diarrhea, headache, fever
When is the onset of salmonella?
6-48 hours
What is the duration of salmonella?
1-2 days
What is the onset of E. Coli
5-48 hours
What is the duration of E.Coli
3 days- 2 weeks
What foods are the most likely to go bad on a picnic?
The ones that are altered and handled the most from their original state
What are the seven principles of HACCP?
- conduct a hazard analysis
- Identify critical control points
3.Establish critical limits - Establish monitering limits
- establish corrective actions
- establish verification procedures
- establish record-keeping and documentation procedures
What score is considered OVERWEIGHT on the BMI?
25-29
What score is considered OBESE on the BMI?
30+
What three chronic diseases are highly correlated with excess weight gain?
High blood pressure, diabetes, heart disease
For which of the following would the recommended energy intake, per unit of body weight be the lowest?
A. Two Month old infant
B. 80-y/o Female
80 y/o female
What is the most effective way of assessing body composition
Skinfold thickness
What kind of fat is the most dangerous?
Visceral fat
Why is visceral fat more dangerous than subcutaneous fat?
Visceral fat is more dangerous because it is located around the organs and is harder to lose
Where is visceral fat found
Abdomen
Where is subcutaneous fat found?
In the hips
is obesity considered an ED
Yes
