NSC EXAM NEWEST 2026 180 QUESTIONS AND

NSC EXAM NEWEST 2026 180 QUESTIONS AND ( ANSWERS)

NSC EXAM NEWEST 2026

180 QUESTIONS AND

( ANSWERS) GRADED

What is the precursor to active vitamin D? - ANSWERCholesterol

What is necessary for cell membranes and lipoprotein structure?

- ANSWER- phospholipids

What does the body release when blood sugar is high? -

ANSWER- insulin (when digesting new food)

What does the body release when blood glucose is low? -

ANSWER- glucagon (when hungry)

Which mineral helps give methionine and cysteine their threedimensional shape and is found in hair and nails? - ANSWERsulfur

A goiter is caused by a deficiency in what mineral? - ANSWERIodine

The average healthy adult is about ____% of water. -

ANSWER- 55 or 60

What is the micronutrient that functions as the amino acid

vitamin? - ANSWER- vitamin B6

How many calories are in a gram of fat? - ANSWER- 9 calories

How many calories are in a gram of protein? - ANSWER- 4

calories

How many calories are in a gram of carbs? - ANSWER- 4

calories

What is nutrigenomics? - ANSWER- scientific study of the

interaction of nutrition and genes

What are macronutrients? - ANSWER- carbohydrates, fats,

proteins

What are the micronutrients? - ANSWER- vitamins and

minerals

What cannot be digested? - ANSWER- fiber

Define energy balance - ANSWER- energy in = energy out

What are the five characteristics of a nutritious diet? -

ANSWER- balance, adequacy, calorie control, moderation,

variety

What is adequacy? - ANSWER- foods that provide enough of

each essential nutrient, fiber, energy

What is balance? - ANSWER- the choices do not overemphasize

one nutrient or food type at the expense of another

What is calorie control? - ANSWER- staying within your energy

balance

What is energy balance? - ANSWER- energy in = energy out

What is moderation? - ANSWER- taking in more nutrient dense

foods and less of the "junk"

What is variety? - ANSWER- within a food group, eating

different things

What are observational studies? - ANSWER- Observational

Study: the researcher carefully and systematically observes and

records behavior without interfering with the behavior.

What are some observational studies? - ANSWEREpidemiological studies, Cross-sectional studies, Case-control

studies, Cohort studies

What are experimental studies? - ANSWER- these are

controlled tests of a hypothesis in which the researcher

manipulates an independent variable to discover its effect on a

dependent variable.

What are some experimental studies? - ANSWER- Laboratorybased animal studies, Laboratory-based in vitro studies, Human

intervention (clinical) trials, Cross-over design

What do case studies do? - ANSWER- May lead to possible

avenues of research