Science of Food 1

In a First In-First Out system the newest products are used first to avoid them getting old.

False

Which of these is not a good strategy to keep pests from coming into food facilities?

Using traps throughout the building

When did organic foods received their official definition?

1990

This movement made the U.S. the leader in food production for the entire world.

Green revolution

In order to use the organic seal, a product must contain at least this percent of organic ingredients:

95

Most studies concluded that organic foods have higher levels of important nutrients.

false

In recent years, organic and conventional food sales have been growing respectively at:

8% and 3%

BST (Bovine Somatotropin) was used in the early 1990's in dairy production. With this technology, which is false?

The hormone is transferred to the milk

Colorimeters can be used to evaluate all of the following except:

Texture

A triangle taste panel includes a reference and two samples to compare to the reference.

false

Which sensory sense is detected by the olfactory receptors?

Smell

In an endothermic reaction, the reactants have more energy than the products and that is why the container in which the reaction takes place feels cold.

false

During production of lactose free milk, the enzyme lactase:

Breaks down lactose into galactose and glucose

Change in fruit ripening includes all of these, except:

Increase in acidity

To become meat, an animal upon slaughtering must go through some biochemical reactions except:

Decrease in proteinase activity, which prevents them from breaking down proteins

This type of carbohydrate cannot be digested or used for energy by humans.

fiber

This bond is formed between two sugar molecules

glycosidic

Branched chain of glucose found in plants

 

amylopectin

Long, straight, digestible chain of glucose found in plants

amylose

The network formed by carbohydrate molecules in response to heating and cooling

gelatinization

Which of the following are reducing sugars?

Monosaccharides

The Maillard reaction occurs between:

Reducing sugars and amino acids

In a “cis” configuration, hydrogens in the double bonded carbons are:

on the same side

all enzymes are

protiens

Which of these would not be an alternative to reduce enzymatic activity associated with browning in plant tissue:

Use of a sugar solution

Three-dimensional folding pattern of a protein

tertiary structure

Structure associated with the folds of the polypeptide chain

secondary structure

Structure present in proteins when it has more than one amino acid chain

quaternary structure

Order and number of amino acids in a protein chain

primary structure

When considering states of matter, which states can be found in ice cream?

Solid and Gas

Type of bond that occurs as a result of electron sharing

covalent

Type of bond that occurs as a result of electron transfer

ionic

A mixture of two or more substances where the particles of one substance are spread throughout another substance

heterogeneous colloid

A mixture that is not uniform

heterogeneous mixture