chapter 3 Flashcards

The names of most enzymes end with the suffix

Which word describes all the decomposition reaction in the body?

Match the names of the parts of the pictured chemical equation

AB --> A+B

Which terms can be applied to most synthesis reaction in the body?

ATP formation is an reaction because energy must be supplied for the reaction to occur

ATP splitting is an reaction because energy is released

A ball rolling across a table exhibits kinetic energy

The reaction pictured is a reaction

Co2 + H20 <--> H2Co2

The combination of all catabolic and anabolic chemical reactions is referred to as

The type of potential energy that is stored in a molecule's chemical band is called energy.

The reaction pictured is an example of an reaction.

Sucrose --> Glucose + Fructose

The reaction picture is a reaction

amino acids H20 Dipeptide

A reaction in which electrons are transferred from one chemical structure to another is referred to as an

Light that can be detected by the retina is referred as a

In an reaction, the products have more energy than the reactants.

A is a method of writing a summary of the changes that occur in a chemical reaction.

Which terms can be used to classify reactions based on the relative amounts of energy in reactants and products?

If the optimal temp. for an enzyme is significantly exceeded, the enzyme may

Which of the following determine reaction rate in an enzyme-catalyzed reaction?

The temporary structure formed when an enzyme binds to subtracted is known as an complex.

If an electron and a hydrogen ion are removed from a structure during a chemical reaction, the structure is said to have been

Which of the following terms can be applied to most decomposition reactions in the body?

reactions still occur, but at a much slower rate

Enzymes are biological cataylists

significantly speed up chemical reaction by lowering the activation energy. They do this by binding to the reactants and bringing them together, or splitting them apart. At the end, the catalysts is unchanged and can do the same work again.

chemical reactions: Classification basic on chemical structure:

Synthesis

chemical reactions: Classification basic on chemical structure:

Decomposition

chemical reactions: Classification basic on chemical structure:

Exchange

In an reaction, energy is released. There, the reactants have more energy then the products.

Many synthesis in the body are dehydration reactions but decomposition reactions are not.

reactions absorb energy and yield products rich in potential energy

speed up the reaction

reactions release energy and yield products that contain less potential energy than their reactants

Inhibitors interfere with enzymes

is composed of numerous enzymes to convert a specific substrate to the final product. The product of one enzyme is the substrate for the next enzyme in the pathway. Can be regulated by negative feedback that involves a product that serves as an allosteric inhibitor binding to an enzyme early in the patthway

The energy required to break existing chemical bonds for the chemical reaction to proceed is called

An enzyme

A molecule or ion that aids an enzyme to ensure a reaction occurs is known as an

is the collective term for all the synthesis reactions in the body

The law of thermodynamies states that a quantity of energy can't be completely transferred from one form into another

Which type of reaction involves both synthesis and decomposition?

If multiple enzymes in a metabolic pathway are physically attached to each other, they form a

If a hydrogen ion and an eletron is added to a structure during a chemical reaction, the structure is said to have been

Most enzymes are proteins that range is size from 60 to 2500 amino acids

If further increase in substrate concentration do not result in further increases in reaction rate, than an enzyme is likely

In the mnemonic "LEO" says "GER". The acronym "LEO" stands for

The movement of ions across a membrane is an example of

The vibrating string on a violin imparts kinetic energy to the air around it.

Which conditions will increase the rate of a chemical reaction?

Most enzymes are capable of catalyzing type of reaction .

An binds to a site apart from the active site to prevent an enzyme from catalyzing a reaction.

The is the location on an enzyme where the substrate binds

Which of the following statements correctly describes energy?

Enzyme binds to an enzyme to turn it off, thus preventing it from catalyzing a reaction

If a cofactor is an organic molecule it is also sometimes called an

The study of energy transformation is called

The activation energy of a catalyzed reaction is that of an uncatalyzed reaction

The site a noncompetitive inhibitor binds to is called an site

Which terms can be used to classify reactions based on the relative amounts of energy in reaction and products?

If the rate of a reaction leads to a net loss of reactants, than the reaction is considered

How are metabolic pathways usually regulated?

The type of chemical reaction that occurs when two or more atoms, ions, or molecules combine to form a larger chemical structure is called reaction

are present prior to the start of a chemical reaction

Activation energy is only required in endergonic reaction

The process of removing a phosphate is

A binds to the active site of an enzyme to stop the enzyme from catalyzing a reaction.

When terms can be applied to most synthesis reactions in the body?

The reaction pictured is an reaction

A + B --> AB

Place the steps in enzyme action in proper order:

Which is the optimal pH range for most human enzyme?

Mechanical and electrical energy are both forms of energy

Which is used to measure the heat energy of a substance?

are formed during a chemical reaction

Which are forms of radiant energy?

The law of thermodynamics states that energy can neither be created nor destroyed.

Which are involved in a chemical reaction?

• The energy associated with random motion of ions and not available to do work is kinetic energy

A biologically active catalyst is known as

At equilibrium, a reversible reaction proceeds in direction.

Match the class of enzyme with description of its basic function

Which of the following are criteria are for chemical reactions?

Which type of reaction results when a large molecule break down into smaller molecules?

Kinetic energy in the form of electromagnetic waves is known as energy

Which is a significant factor affecting enzymes reaction rate?

Which functions primarily as energy storage in the human body?

A pile of gun power can represent chemical energy, while a flying bullet can represent mechanical energy.