Celena Dicochea

Select all of the following factors which affect an enzymes reaction.

-Activators-Inhibitors-pH level-Temperature

What number is mono?

1

What number is di?

2

What number is tetra?

4

The products of a reaction between 4H2 and 2O2 would yield which of the following products?

4H20

What number is hepta?

7

A solution is made by dissolving 125 g of sodium chloride in 1.5 kg of water. What is the percent by mass?

7.69

An unknown substance was tested using red litmus paper and the paper turned blue, which of the following is a probable pH for the substance ?

9

What number is nona?

9

# Na + # CI # NaCI + # Na +

93, 4, 4, 89

Which of the following factors affect food deterioration and spoilage?

Acidity Heat Water activity Chemical preservatives

Which family of elements is composed of 15 radioactive compounds?

Actinide series

If Sophia wanted to increase an enzyme's activity she would need a/an __________ to make the enzyme work faster.

Activator

A peptidase breaks down peptides into __________

Amino acids

Which of the following describes how an inhibitor works?

An inhibitor bonds to the enzyme and changes the shape of the enzyme

Select all of the following foods which contains lipids.

Avocado, Olive oil, Salmon

If you wanted to know the exact pH of a substance, which of the following indicators would you use ?

Both A and B

If Jack needed to tenderize meat, he could obtain __________, which is found in a pineapple.

Bromelain

Which of the following is not a characteristic of a base?

Change blue litmus paper to red

______ is the amount of ______ dissolved per amount of ______ it can be expressed as a ______.

Concentration, Solute, Solution, Percent.

The following emulsions in food are?

Crema in expresso, Hollandaise sauce, Vinaigrette

On periodic table, Alkaline Earth Metals are what color?

Dark orange

The reaction between baking soda and vinegar was two reactions, one was the acid-base reaction and the other was a ______________________.

Decomposition reaction

Which of the following is a common emulsifier?

Detergent

_______ is the ________ breakdown of______ food molecule into ______ molecules which can be used by ______. Digestion occurs when specific ________ are mixed with the food.

Digestion, chemical, large, smaller, cells, enzymes

Which of the following is the most exact in its measure of pH?

Digital pH meter

An acid can be defined as a chemical which ___________________.

Donates a hydrogen ion

Which of the following correctly defines one of the components of an atom?

Electron- negative charge

A mixture of two or more immiscible liquids is called a/an __________.

Emulsion

What does the equation, E + S ⇌ ES → EP ⇌ E + P, represent?

Enzyme reaction

__________ are proteins which act as catalysts to help complex reactions occur.

Enzymes

______function similar to a lock and key, the enzyme is the________ and the _______is the _____.

Enzymes, key, substrate, lock

Both natural and artificial additives have to be approved by the Food and Drug Administration (FDA).

False

Egg foam cannot be formed without additives.

False

Electrons are large particles with no net charge located in the nucleus,

False

Emulsions form spontaneously

False

Neutrons are small, negatively charged particles located in the atomic orbitals.

False

The hydrophilic end of an emulsifier dislikes water.

False

The toothpicks represent the enzyme.

False

Their hands represent the substrate.

False

_________ is the conversion of carbohydrates to alcohols and carbon dioxide or organic acids using yeasts or bacteria under anaerobic conditions.

Fermentation

Plaster----

Gas material dispersed in solid

On a periodic table, Noble Gases are what color?

Green

The __________ of the periodic table house elements which share common properties.

Groups

If you have an element which is a highly reactive element and you know it is in group 17 of the periodic table, which family does it belong to?

Halogens

_______ mixtures are the _____ throughout, with ______ properties throughout the mixture. Whereas ________ mixtures have ______ properties when sampled from different areas .

Homogeneous, same, identical, heterogeneous, different

Select the correct answer from the choices provided in the underlined sections.

If a solution of sugar water is being made, sugar is the system solute, water is the solvent and what is being mixed in the system. l

Which of the following scenarios would increase the reaction rate of a chemical reaction the most?

Increasing the temperature by 25°C

Which of the following scenarios would increase the reaction rate of a chemical reaction the most?Responses

Increasing the temperature by 25°C

Peptidases---

Intenstinal mucosa

On periodic table, Transitional metals are what color?

Light Orange

On periodic table, Lanthanide Series is what color?

Light pink

A cheese manufacturer is wanting to add some flavor to their cheese. Which of the following enzymes would they use?

Lipase

Cheese ---

Liquid material dispersed in solid

Which of the following is NOT an enzyme involved in digestion?

Lymphatic amylase

Semi-Permanent----

Maintained a few hours before separating

If Paxton wanted to breakdown maltose into glucose, which enzyme would he use?

Maltase

Which of the following is NOT true about mixtures?

Mixtures are a combination of two or more substances which exist in a fixed proportion to each other

Which of the following are considered cations?

Na+

In the reaction between hydrochloric acid and sodium hydroxide, which common substance is formed as the salt of the acid-base reaction?

NaCI

In the reaction between hydrochloric acid and sodium hydroxide, which common substance is formed as the salt of the acid-base reaction?

NaCl

Not considered mixtures

Oxygen and pure water

Trypsin---

Pancreas

Butter, Dough, Nail, Ice Cube.

Physical change, Chemical change, Chemical change, Physical change.

Ions are __________.

Positively or negatively charged

Which statements are true?

Protons are large, positively charged particles located in the nucleus.

On periodic table, Actinide Series is what color?

Purple

Permanent-----

Remains in a thickened state for an extended period of time.

Leavening agents give breads, cakes, muffins, pancakes and other foods the ability to ____ and ______ in volume by water or ____ expanding. Leavening mainly occurs during ________.

Rise, Increase, Gas, Cooking

If you have salt, water and a plastic cup, which of the following correctly labels the role of each in making a solution?

Salt=Solute, Water=Solvent, Plastic cup=System

Temporary-----

Separate in under an hour and emulsifies again with some agitation.

Maltase---

Small Intestine

What type of colloid is a pearl?

Solid material dispersed in solid

Paper ---

Solid material dispersed in solidThe following emulsions in food are?

Concentration is the amount of_____ dissolved per amount of ______

Solute, Solution

If a solution of sugar water is being made, sugar is the ____, water is the ______ and what is being mixed is the ________.

Solute, Solvent, System.

A mixture which has an even concentration throughout is known as a __________.

Solution

Pepsin---

Stomach Mucosa

In the reaction between hydrochloric acid and sodium hydroxide, which common substance is formed as the salt of the acid-base reaction?

Table salt

Which of the following solutions has the highest concentration?

Three grams of salt in one liter of water

Why would a fruit juice manufacturer add pectinases to their fruit juice?

To make the juice clear

An emulsion is a colloid.

True

Egg foam stability can be influenced by the age of the egg.

True

The person is simulating an enzyme reaction.

True

The amount of water in a food can be determined by measuring the food's __________.

Water activity

Which of the following is NOT an example of a heterogeneous mixture?

White gold

On a periodic table, Halogens are what color?

Yellow

The range of the pH scale is which of the following?

Zero to fourteen

If you wanted to know the exact pH of a substance, which of the following indicators would you use ?

pH paper Digital pH meter

Meat processing uses an enzyme called______, these cheese manufactures use an enzyme called ______ and the beverage industry used an enzyme called _______.

papain, catalase, pectinase.

When a_____ is added to a_____ and the original boiling point of the solvent was____, the boiling point of a resulting solution could be_____.

solvent, solution, 230F, 238°F

The range of the pH scale is which of the following?

zero to fourteen