Single-Step

(noun)

All expenses are combined in a single section including cost of goods sold.

Related Terms

Examples of Single-Step in the following topics:

  • Income Statement Formats

    • Income statements are commonly prepared in two formats: multiple-step and single-step.
    • Income statements are commonly prepared in two formats: multiple-step and single-step.
    • In the multiple-step format revenues are often presented in great detail, cost of goods sold is subtracted to show gross profit, operating expenses are separated from other expenses, and operating income is separated from other income.
    • In the single-step format, all expenses are combined in a single section including cost of goods sold.

  • Rate-Determining Steps

    • The rate of a multi-step reaction is determined by the slowest elementary step, which is known as the rate-determining step.
    • Chemists often write chemical equations for reactions as a single step that shows only the net result of a reaction.
    • The reaction mechanism is the step-by-step process by which reactants actually become products.
    • In kinetics, the rate of a reaction with several steps is determined by the slowest step, which is known as the rate-determining, or rate-limiting, step.
    • If this reaction occurred in a single step, its rate law would be:

  • Introduction to the Income Statement

    • This contrasts with the balance sheet, which represents a single moment in time.
    • There are two types of income statement, a single-step income statement and a multi-step income statement.
    • The single-step income statement takes a simpler approach, totaling revenues and subtracting expenses to find the bottom line.
    • The multi-step income statement is more complex.
    • It takes several steps to find the bottom line, starting with the gross profit.

  • Family Structures

    • Historically, single-parent families often resulted from death of a spouse, for instance during childbirth.
    • Single-parent homes are increasing as married couples divorce, or as unmarried couples have children.
    • Step families are becoming more common in America.
    • Divorce rates, along with the remarriage rate are rising, therefore bringing two families together as step families.
    • Statistics show that there are 1,300 new step families forming every day.

  • Molecularity

    • If a chemical reaction proceeds by more than one step or stage, its overall velocity or rate is limited by the slowest step, the rate-determining step.
    • For example, if a crowd is leaving a theater through a single exit door, the time it takes to empty the building is a function of the number of people who can move through the door per second.
    • The molecularity of a reaction is defined as the number of molecules or ions that participate in the rate determining step.
    • A mechanism in which two reacting species combine in the transition state of the rate-determining step is called bimolecular.
    • If a single species makes up the transition state, the reaction would be called unimolecular.

  • Amplifying DNA: The Polymerase Chain Reaction

    • Denaturation step: This step is the first regular cycling event and consists of heating the reaction to 94-98 °C.
    • It causes DNA melting of the DNA template by disrupting the hydrogen bonds between complementary bases, yielding single-stranded DNA molecules.
    • Annealing step: The reaction temperature is lowered to 50-65 °C for 20-40 seconds allowing annealing of the primers to the single-stranded DNA template.
    • Extension/elongation step: The temperature at this step depends on the DNA polymerase used; Taq polymerase has its optimum activity temperature at 75-80 °C, and commonly a temperature of 72 °C is used with this enzyme.
    • After elongation, the cycle goes back to step one, usually for 20-40 cycles.

  • Rate Laws for Elementary Steps

    • The rate law for an elementary step is derived from the molecularity of that step.
    • Every chemical reaction proceeds according to a reaction mechanism, which is a step-by-step description of what occurs during a reaction on the molecular level.
    • Each step of the mechanism is known as an elementary process, which describes a single moment during a reaction in which molecules break and/or form new bonds.
    • The rate-determining step is the slowest step in a reaction mechanism.
    • For now, just keep in mind that the rate laws for each elementary step are determined by the molecularity of each step only.

  • Citric Acid Cycle

    • Almost all of the enzymes of the citric acid cycle are soluble, with the single exception of the enzyme succinate dehydrogenase, which is embedded in the inner membrane of the mitochondrion.
    • Step 1.
    • Step 2.
    • Step 5.
    • Step 6.

  • The Energy-Requiring Steps of Glycolysis

    • Step 1.
    • Step 2.
    • Step 3.
    • Step 4.
    • Thus, the pathway will continue with two molecules of a single isomer.

  • Composing a Fourth-Species Counterpoint

    • Exercises in strict voice-leading, or species counterpoint, begin with a single, well formed musical line called the cantus firmus (fixed voice, or fixed melody; pl. cantus firmi).
    • The first step is to sing and analyze model cantus firmi.
    • a single climax (high point) that appears only once in the melody
    • any large leaps (fourth or larger) are followed by step in opposite direction