Science Safety and Scientific Method Quiz

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the primary difference between a male and female pelvis in terms of structure?

The female pelvis has a larger sacrum than the male pelvis.

The male pelvis is generally wider than the female pelvis.

The female pelvis has a narrower pelvic inlet compared to the male pelvis.

The male pelvis has a heart-shaped pelvic inlet, while the female has an oval-shaped one. (correct)

In an osmosis experiment with dialysis bags, which condition leads to weight gain in a bag?

The bag is placed in a solution with equal concentration on both sides.

The solution inside the bag is hypotonic compared to the surrounding solution. (correct)

The solution inside the bag is hypertonic compared to the external solution.

The solution outside the bag is isotonic to the solution inside.

When performing a diffusion experiment, which factor primarily affects the rate of diffusion?

The temperature of the surrounding environment.

The density of the medium where diffusion occurs.

The color of the chemicals used.

The mass of the diffusing chemical. (correct)

Which anatomical structure is identified in buccal cells under a microscope?

Nuclear envelope Signup and view all the answers

What is the total magnification when using a 10x ocular lens and a 40x objective lens on a microscope?

400x Signup and view all the answers

What is the recommended study material for students before the practical?

A variety of materials including lab reports and histology slides Signup and view all the answers

How long do students have to answer the questions at each station during the practical?

2 minutes Signup and view all the answers

What happens if a student is late to the practical?

They will miss questions corresponding to their lateness Signup and view all the answers

What type of credit is given for spelling during the practical?

No credit for incorrect spelling Signup and view all the answers

Which lab equipment type is students expected to identify in Lab #1?

All equipment pictured in the Lab #1 Exercise Signup and view all the answers

What is NOT a part of the scientific method as described in Lab #2?

Conducting a survey Signup and view all the answers

Which base unit is NOT part of the metric system?

Foot Signup and view all the answers

Which prefix in the metric system represents one thousand?

Kilo- Signup and view all the answers

Which unit of measurement would you use to measure the volume of a liquid?

Milliliters Signup and view all the answers

What is the primary reason for using significant figures in calculations?

To reflect the precision of measurements Signup and view all the answers

When calculating the mean of a dataset, what method do you use?

Add all values and divide by the number of values Signup and view all the answers

In human anatomy, what does the term 'anatomical position' refer to?

A standard position for describing anatomical parts Signup and view all the answers

Which of the following statements about acids is correct?

Acids donate hydrogen ions in a solution. Signup and view all the answers

How does a buffer function in a biological system?

It helps maintain a stable pH despite the addition of acids or bases. Signup and view all the answers

What is the effect of adding hydrochloric acid (HCl) to an unbuffered solution?

The pH decreases significantly. Signup and view all the answers

Which body cavity houses the lungs and heart?

Thoracic cavity Signup and view all the answers

Study Notes

Lab Safety

Be able to name all the equipment pictured in Lab #1

Scientific Method, Metric System, Directional Terms, and Significant Figures

Understand the purpose of the scientific method and name the 6 steps
Know the base units used in the metric system and the abbreviations
Know the different prefixes used in the metric system (e.g., kilo-), the abbreviation used for each (e.g., kg)
Be able to measure common everyday items in grams, milliliters, centimeters, and millimeters
Understand why significant figures are used and how to correctly assign them to calculations
Know how to round off numbers correctly
Know how to correctly round off the answer to a mathematical calculation involving numbers with different significant figures
Given a data set, be able to calculate the mean (average)
Know the anatomical position and understand how it’s used
Understand how to use directional terms properly
Be able to identify the different body planes
Be able to identify the different body cavities
Be able to identify the four body quadrants
Be able to identify the nine abdominopelvic regions

pH and Buffers

Know the definitions of an acid, base, and salt, and be able to identify simple molecules as being an acid, base, or salt
Understand how the pH scale works and be able to distinguish stronger acids, weaker acids, stronger bases, and weaker bases based on their pH
Identify and understand how to properly use the pH meter
When comparing solutions with different pH values, be able to determine which solution would contain more hydrogen ions and which solution would contain fewer hydrogen ions
Describe what happened to the pH when HCl was added to an unbuffered solution in Experiment 1 and correctly interpret the data from the graph you generated
Describe what happened to the pH when you added HCl to a buffered solution in Experiment 2 and correctly interpret the data from the graph you generated
Explain why your experimental data demonstrates the action of buffers
Given a simple data set, be able to construct and properly label a data table
Given a data table, be able to retrieve specific information from the table
Given a simple data set, be able to construct and properly label a line graph including:
- Figure number and title
- Y-axis with dependent variable description and units
- X-axis with independent variable description and units
Given a line graph, be able to properly interpret the data and retrieve data from the graph

Human Skeleton

Be able to identify all the bones and bone markings listed in Lab Exercise # 4
Know the meaning of the bony landmarks (surface markings) listed in the table in Lab #4 Exercise (e.g., a meatus is a canal-like opening)
Know the specific anatomical differences between the male and female pelvis as listed in the table in the Lab #4 Exercise. Be able to distinguish between a male and female pelvis

Osmosis and Diffusion

Osmosis Experiment – Dialysis Tubing
- Understand how you set up the experiment using dialysis bags in beakers
- Be able to identify solutions as hypertonic, hypotonic, or isotonic
- Understand which bags gained weight and why
- Understand which bag lost weight and why
- Understand which bag stayed the same and why
- Understand the impact of different concentration gradients (i.e., the steepness of the gradient) on the rate of osmosis
- Given a graph like the one you created for your lab report, be able to correlate lines on the graph with each beaker set-up and explain what was happening in each beaker experiment
Diffusion Experiment - Demonstration
- Understand how the experiment was set up using petri dishes
- Know which chemicals were used and how mass (molecular weight) of the chemical affects the rate of diffusion

Microscope, Cells, and Mitosis

Be able to identify the parts of the microscope and know their major functions
Be able to calculate total magnification, depending on which objective is used
Understand how to properly use, focus, and put away the microscope
Understand how to make a wet mount, stain, and identify buccal (cheek) cells.
Be able to identify the following structures on a slide of buccal (cheek) cells: nucleus, nuclear envelope, cytoplasm, cell membrane
When observing mitosis microscope slides be able to identify interphase cells, as well as cells in the 4 stages of mitosis (prophase, metaphase, anaphase, telophase)

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

Test your knowledge on lab safety equipment and the scientific method. This quiz covers various concepts, including the metric system, significant figures, and directional terms in anatomy. Additionally, you'll explore how to measure items and calculate averages.