Biology Experiment Principles Quiz

<p>The plant's leaves are a bright shade of green. (A)</p> Signup and view all the answers

<p>To validate the findings and reduce the influence of random errors. (C)</p> Signup and view all the answers

<p>It increases the validity of the results. (B)</p> Signup and view all the answers

<p>The origin of the salmon (wild or farmed). (A)</p> Signup and view all the answers

<p>The species of salmon being studied. (D)</p> Signup and view all the answers

<p>Data that describes qualities or characteristics. (C)</p> Signup and view all the answers

<p>Collect as much data as possible before and after the event to understand potential influences. (D)</p> Signup and view all the answers

<p>To provide a baseline for comparison (B)</p> Signup and view all the answers

<p>To confirm the validity of the results (A)</p> Signup and view all the answers

<p>Focusing on a single independent variable (C)</p> Signup and view all the answers

<p>The variable that is changed by the experimenter (D)</p> Signup and view all the answers

<p>It supports or refutes the original hypothesis (C)</p> Signup and view all the answers

<p>The experimental treatment involves manipulating the independent variable (A)</p> Signup and view all the answers

<p>Generalization (C)</p> Signup and view all the answers

<p>To predict the outcome of the experiment (A)</p> Signup and view all the answers

<p>1500 mL (D)</p> Signup and view all the answers

<p>5000 cm (A)</p> Signup and view all the answers

<p>Milliliter (mL) (B)</p> Signup and view all the answers

<p>1 mm (B)</p> Signup and view all the answers

<p>Milli (m) (C)</p> Signup and view all the answers

<p>To ensure consistency and communication among scientists worldwide. (B)</p> Signup and view all the answers

<p>Canada (B)</p> Signup and view all the answers

<p>They provide a more precise and objective way to express information. (A)</p> Signup and view all the answers

<p>Foot (D)</p> Signup and view all the answers

<p>To ensure that the system is consistent across different regions and countries. (D)</p> Signup and view all the answers

<p>Direct connection to the barleycorn standard for historical accuracy. (B)</p> Signup and view all the answers

<p>The second statement provides a specific numerical value for its height. (A)</p> Signup and view all the answers

<p>1000 meters / 1 kilometer (D)</p> Signup and view all the answers

<p>500 cm (B)</p> Signup and view all the answers

<p>To make measurements more accurate and repeatable. (C)</p> Signup and view all the answers

<p>The metric system is simpler because conversion factors are based on powers of 10. (D)</p> Signup and view all the answers

<p>1 yard (C)</p> Signup and view all the answers

<p>°F = (°C x 1.8) + 32 (A)</p> Signup and view all the answers

<p>Catecholase (C)</p> Signup and view all the answers

<p>To act as an antimicrobial agent (B)</p> Signup and view all the answers

<p>Catechol becomes more reactive (C)</p> Signup and view all the answers

<p>Light intensity (C)</p> Signup and view all the answers

<p>Each enzyme has a specific pH at which it is most active (B)</p> Signup and view all the answers

<p>Enzymes lower the activation energy needed for reactions. (D)</p> Signup and view all the answers

<p>Environmental factors, including temperature and pH. (B)</p> Signup and view all the answers

<p>Substrate (A)</p> Signup and view all the answers

<p>They provide a way to compare and ensure reproducibility in results. (D)</p> Signup and view all the answers

<p>Enzymes help to bring reactants closer together to increase the reaction rate. (A)</p> Signup and view all the answers

<p>They lower the activation energy for reactions. (A)</p> Signup and view all the answers

<p>Active site (D)</p> Signup and view all the answers

<p>Substrates (C)</p> Signup and view all the answers

<p>They influence the optimal functioning of enzymes. (B)</p> Signup and view all the answers

<p>Enzymes are substrate-specific and catalyze particular reactions. (A)</p> Signup and view all the answers

<p>It is inactivated (B)</p> Signup and view all the answers

<p>Hydrogen peroxide (B)</p> Signup and view all the answers

<p>Amylase (D)</p> Signup and view all the answers

<p>Concentration of a substance using light (D)</p> Signup and view all the answers

<p>It denatures the enzyme (C)</p> Signup and view all the answers

Rules and practices to ensure safety during lab activities.

A series of steps for conducting scientific research: observation, question, hypothesis, etc.

A testable and falsifiable statement predicting an outcome.

Dependent variables respond to changes, independent variables are manipulated.

Quantitative data is numerical, while qualitative data describes characteristics.

A testable statement predicting the outcome of an experiment.

The variable that is changed by the experimenter in an experiment.

The outcome variable measured during the experiment, affected by the independent variable.

Variables kept constant across all experimental treatments to ensure valid results.

The group where the independent variable is not applied, serving as a baseline for comparison.

The group where the independent variable is manipulated to observe effects.

The ability of an experiment to produce the same results when repeated under the same conditions.

Decision made to accept or reject the hypothesis based on data analysis in the experiment.

Natural differences in experimental responses due to biological systems.

The variable that is manipulated to observe its effect on the dependent variable.

The variable that is measured as a response to changes in the independent variable.

The group in an experiment that is not exposed to the treatment and serves as a baseline.

Ways to display experimental results, often in tables and graphs for clarity.

Standardized units of measurement used globally, including length, weight, volume, and temperature.

The metric unit for weight is kilogram (kg).

The metric unit for length is meter (m).

The metric unit for volume is liter (L).

The metric unit for temperature is Celsius (°C).

The process of changing a measurement from one unit to another, e.g., metric to imperial.

Instruments like beakers and thermometers used for scientific measurements.

Presenting numerical data visually using graphs with labels for clarity.

A measurement system based on units of 10 for various quantities.

Basic units in the metric system: meter, liter, gram.

A ratio used to convert between different units of measurement.

1 milliliter is equal to 1 cubic centimeter (1 ml = 1 cm³).

Prefixes that indicate powers of ten for metric units (kilo, centi, milli, micro).

A method in dimensional analysis where units are canceled out to simplify calculations.

A system of measurement used primarily in the United States, using units like feet, gallons, and pounds.

The process of changing temperature values from one scale to another, e.g., Celsius to Fahrenheit.

A protein that speeds up biochemical reactions by lowering activation energy.

The substance on which an enzyme acts during a chemical reaction.

The specific region of an enzyme where the substrate binds and the reaction occurs.

A substance that increases the rate of a reaction without being consumed in the process.

The speed at which reactants are converted into products in a chemical reaction.

A temporary formation when substrates bind to enzymes during a reaction.

Factors like temperature and pH that influence how enzymes function.

Enzymes work best at specific pH levels; stomach enzymes prefer acidic conditions.

Each enzyme has a temperature range where it achieves peak activity.

A substrate in fruits/vegetables that oxidizes to form quinone.

An enzyme that catalyzes the oxidation of catechol to quinone.

The brown product formed by the oxidation of catechol, which has antimicrobial properties.

The rate at which an enzyme catalyzes a reaction.

Catalase breaks down hydrogen peroxide into water and oxygen.

Amylase breaks down starch into simpler sugars.

An instrument that measures how much light is absorbed by a sample.

The reaction of catechol and catecholase produces quinone.