FS-04: Basic Chemistry of Food

Which of these describe the structure of an atom?

• The atom consists of a nucleus containing protons and neutrons; electrons orbit the nucleus.

• The atom consists only of electrons arranged in a circular pattern.

• The atom has one solid mass with no distinct parts.

• The atom is a collection of random particles with no defined structure.

Which is a proper definition of "matter".

• Matter is anything that has measurable mass and volume.

• Matter is only what you can see.

• Matter is defined as energy with direction

• Matter is things that have volume and energy.

Which are true of the elements in the periodic table?

• They are just random numbers and letters assigned to elements.

• They only indicate the elements with no relation to food compounds.

• The letters represent the elements, and the numbers are how much there are in the universe

• They represent the chemical symbols for elements and indicate the number of protons in them

Which pair correctly matches the bonding type with the compound?

• Salt: ionic bonding and Water: covalent bonding.

• Salt: covalent bonding and Water: ionic bonding.

• Both salt and water: ionic bonding.

• Both salt and water: covalent bonding.

Which of these is accurate?

• Organic: carbohydrates, fat, protein, vitamins; Inorganic: water, minerals.

• Organic: water, minerals; Inorganic: carbohydrates, fat, protein, vitamins.

• Organic and inorganic both include water and minerals.

• Organic compounds are synthetic and inorganic compounds are naturally occurring.

• Inorganic compounds are synthetic and organic compounds are naturally occurring.

Define and differentiate between chemical and physical changes during food preparation and preservation. Choose the correct statement regarding these changes.

• Physical changes involve changes in state without altering chemical composition, while chemical changes involve the formation of new compounds.

• Physical changes involve the formation of new compounds, while chemical changes involve changes in state without altering chemical composition.

• Both chemical and physical changes involve the formation of new compounds.

• Neither chemical nor physical changes affect food preservation.

Which of the following is true about organic compounds?

• A) They contain carbon.

• B) They don't contain carbon.

Fill in the blank: Organic compounds (a)   carbon.

What is the characterizing feature of hydrocarbons?

• Composed only of carbon and hydrogen

• Composed of carbon, hydrogen, and oxygen

• Composed of carbon, hydrogen, and nitrogen

• Composed of carbon, hydrogen, and sulfur

What is the characterizing feature of alcohols?