What this quiz covers
Bread looks like four ingredients and behaves like a chemistry set. Gluten forms the moment flour meets water, sugar feeds the yeast, salt tightens the network, and every one of those steps has a number and a mechanism behind it. This quiz leans into that world — cereals, baking, and the flavors and additives around them — but it ranges wider too: why antioxidants protect fats, what gives butter its flavor, which compound makes garlic bioactive, how cold sterilization works, and the temperature that defines UHT milk. It is the pantry-shelf view of food science, and it is where most technicians start.
Twenty questions cover antioxidants against fat spoilage, grain fumigants, diacetyl and butter flavor, iron fortification, sugar’s minor role in bread, gluten starting at hydration, fruit juice spoilage, avidin in egg, lycopene in tomatoes, UHT at 135°C, actin and myosin in the myofibril, chromatography for flavor analysis, allicin in garlic, irradiation as cold sterilization, cereals’ methionine–lysine profile, the Defence Food Research Laboratory, salt’s role in curing, glazing fish, what eggs lack, and wax coatings on fruit.
Baking first, then the molecules that flavor everything
The baking block is the heart of this quiz: gluten hydrating into a network, sugar playing its minor role, juice spoiling a dozen ways at once, iron fortification choices. Then the flavor block: diacetyl, allicin, chromatography, lycopene — the molecules that make food taste like itself. Then the preservation block: fumigants, antioxidants, cold sterilization, UHT, wax coatings. Three blocks, three study sessions. The pairs to lock down: diacetyl–butter, allicin–garlic, lycopene–tomato, avidin–egg — and 135°C for UHT.
How to use this quiz
You get 20 seconds per question and one attempt at each answer. The baking questions reward anyone who has stood at a mixer: gluten forms at hydration, sugar is minor, juice spoils a dozen ways at once. The molecule questions reward flashcards — make the pairs, drill them, and retake the quiz. When the pairs come back instantly, the knowledge is yours.
Answer explanations
Worked through the quiz? Here is why each correct answer is correct — the concept behind it, in plain terms.
- Which of the following prevents the spoilage of fat
Correct answer: anti-oxidants — Fat spoilage is mostly oxidation — rancidity — and antioxidants break the free-radical chain before off-flavors develop. - Most commonly used fumigant in stored grains
Correct answer: both (a) & (b) — Stored grain is fumigated with methyl bromide and phosphine (from aluminium phosphide) — both are in real use; carbon dioxide alone isn’t a fumigant in this sense. - Compound responsible for butter flavor is
Correct answer: diacetyl — Diacetyl, the buttery diketone from lactic cultures, is butter flavor’s signature compound — in excess it is the “buttery” defect in beer. - Which one is used for iron fortification of food products
Correct answer: all — Ferrous sulphate, gluconate, and lactate are all used to fortify foods with iron — the choice depends on the food’s color and flavor constraints. - Minor ingredient used in bread making
Correct answer: sugar — Flour, water, yeast, and salt do the structural work in bread; sugar is the minor ingredient — yeast food and crust color, not structure. - The gluten formation starts at which stage in bread making
Correct answer: hydration — Gluten forms when gliadin and glutenin hydrate — water wakes the proteins up before mixing develops the network. - Spoilage of fruit juice is due to
Correct answer: all options — Fruit juice spoils many ways at once — lactic and other fermentations plus slime-forming bacteria — so “all” is the honest answer. - Anti-nutritional factor present in egg
Correct answer: avidin — Egg white’s avidin binds biotin (vitamin B7) into an indigestible complex — the antinutritional factor destroyed by cooking. - Red color of tomatoes is due to
Correct answer: lycopene — Tomato red is lycopene — the carotenoid that deepens as the fruit ripens. - Temperature used in UHT processing of milk
Correct answer: 135°C — UHT milk is heated to about 135°C for a few seconds — sterile and shelf-stable, with minimal cooked flavor versus in-can sterilization. - Which of the following is a component of myofibril
Correct answer: both — Myofibrils are built from interlocking actin (thin) and myosin (thick) filaments — the sliding-filament pair behind every contraction. - Flavour components in food products can be analyzed by
Correct answer: chromatography — Flavor volatiles are separated and identified by gas chromatography (often with mass spectrometry) — the standard flavor-analysis tool. - Bioactive component of garlic having health benefits
Correct answer: allicin — Crushing garlic releases allicin — the sulfur compound behind most of garlic’s studied health effects. - Food sterilization via irradiation is also known as
Correct answer: cold sterilization — Irradiation sterilizes without heat — “cold sterilization” — which is why spices and medical supplies use it. - Identify the correct statement
Correct answer: Cereals are rich in methionine and deficient in lysine — Cereal proteins run short on lysine but carry reasonable methionine — the mirror image of legumes, which is why the two complement each other. - Defense Food Research Laboratory is located at
Correct answer: Mysore — The Defence Food Research Laboratory sits in Mysuru (Mysore), developing rations and convenience foods for India’s armed forces. - Common salt affects __________of meat during curing
Correct answer: flavor — Salt’s first job in curing is flavor — it seasons while it preserves, and cure formulations are built around its taste threshold. - Glazing of fish is practiced to protect it from
Correct answer: both — Glazing dips frozen fish in water to form an ice coat that blocks both oxygen (oxidation and rancidity) and moisture loss (freezer burn). - Poultry eggs are rich source of nutrients except
Correct answer: all — Eggs are nutrient-dense but poor in vitamin C and plant acids like malic and adipic — “all” of the listed acids are essentially absent. - Which of the following is true about wax coating of fruits
Correct answer: all — Wax coatings gloss the fruit, slow transpiration, and extend shelf life — all three effects in one treatment.