Free TCE Food and Nutrition Flashcard Review
Review 20 public cards with spaced repetition. Flip a card, then grade your recall. Cards you miss return today. Your schedule stays in this browser.
Loading your review schedule…
Browse the free cards
What does energy balance compare?
Energy intake with total energy expenditure over a stated period; the difference can be positive, negative or approximately balanced.
A one-day record shows 9,100 kJ intake and 8,700 kJ expenditure. What is the estimated balance?
+400 kJ, an estimated positive balance for that day; it does not establish the person's usual balance or exact fat gain.
Which components make up total energy expenditure?
Basal metabolic processes, physical activity and the thermic effect of food, with growth or physiological demands relevant in some cases.
Using 17 kJ/g carbohydrate and protein and 37 kJ/g fat, how much energy comes from 24 g carbohydrate, 8 g protein and 6 g fat?
408 + 136 + 222 = 766 kJ.
What is the difference between energy density and nutrient density?
Energy density is energy per unit mass; nutrient density is the amount of a named nutrient or useful nutrients relative to energy or another stated basis.
Soup A provides 600 kJ in 250 g and soup B 600 kJ in 150 g. Which is more energy dense?
Soup B: 4.0 kJ/g versus 2.4 kJ/g for soup A.
Why can body mass change over one day without an equivalent change in body fat?
Water, gastrointestinal contents and glycogen-associated water can change quickly, so a short-term scale change is not a direct fat measurement.
Calculate BMI for an adult who is 72 kg and 1.80 m tall.
72 ÷ 1.80² = 22.2 kg/m², a screening value rather than a direct measure of body fat or health.
Why is an EER not an exact daily prescription?
It estimates intake for a defined reference person and conditions; actual needs vary with body size, activity, growth, physiology and measurement uncertainty.
What four elements strengthen an energy-analysis conclusion?
A numerical result, relevant mechanism, contextual implication and limitation tied to the supplied evidence.
How does digestible carbohydrate contribute to cellular energy?
It is broken into absorbable monosaccharides; glucose can then enter energy-releasing pathways that generate ATP.
What different roles do liver and muscle glycogen have?
Liver glycogen helps maintain blood glucose between meals, while muscle glycogen supplies the muscle in which it is stored.
Why does total sugar on a label not equal added sugar?
Total sugar includes naturally occurring and added sugars; the ingredient list can identify sources but usually not their exact contributions.
What does glycaemic index measure?
The relative blood-glucose response to a standard amount of available carbohydrate from a test food under defined conditions.
How is glycaemic load calculated?
GI × grams of available carbohydrate in the portion ÷ 100.
A serve has GI 50 and 30 g available carbohydrate. What is its glycaemic load?
50 × 30 ÷ 100 = 15.
What are two major functions of insoluble or fermentable dietary fibre?
Fibre can add stool bulk and support bowel function; fermentable fibre can be used by gut microbes to produce metabolites such as short-chain fatty acids.
Why is a wholegrain substitution more informative than saying 'avoid carbohydrates'?
It can retain carbohydrate energy while increasing fibre and micronutrient value, and it evaluates food quality rather than demonising a macronutrient.
Cereal A has 8 g fibre per 100 g. How much is in a 40 g serve?
8 × 0.40 = 3.2 g fibre.
Why can a low-GI food still be energy dense?
GI describes relative glucose response to available carbohydrate, not total energy, portion size or fat content.