Mitosis Root Tip Lab Observing Cells Under the Microscope

Slides:



Advertisements
Similar presentations
Introduction to the Microscope
Advertisements

WHAT DO YOU SEE? WHAT CAN YOU SEE? MICROSCOPE LAB.
Microscopes Magnification, Field of View and Estimating Size.
Do Now: Your digestive system uses many different enzymes to digest food. Pepsin is an enzyme in your body that breaks down proteins in food that you eat.
Types of Microscopes Simple Microscope - contains only one lens. ex. magnifying glass Compound Light Microscope - a system of two lens that work together.
Review of the Microscope
Using the Microscope.
Review & Peer Evaluation. 1. Draw what you see, not what you think should be there. 2. Use pencil for diagrams, labels and titles. 3. Use clean-cut lines.
What invention helped with many discoveries in science? Agenda for Friday Sept 18 th 1.Microscope notes 2.Microscope lab.
Biological Drawings and Microscope Calculations Examining Protists.
Basic Laboratory Skills: Making Microscopic Measurements : Lab 2d
Microscope Review Created by J. Cook.
Parts of a Light Microscope
Lab 1: Using the Microscope
Microscope Math Biology 11.
Introduction to the Microscope  Care, Parts, Focusing  Wet-mount Slides  Biological Drawings.
Friday September 18th In Notebook: What experience do you have using a microscope? What are some practical uses of a microscope that you are aware of?
Measurement with the Microscope
Magnification and Size
Microscope Basics.
Introduction to the Microscope  Care  Parts  Focusing.
Parts of the Microscope
Cells. Starter What do these things have in common? They all make things look bigger!
Introduction to the Microscope
Microscopy : microscope Microscopy : Investigation by means of a microscope.
Introduction to the Microscope
Microscope Review.
Aim #11: How do scientists make measurements with a microscope?
The Compound Microscope
Microscopes Care Parts Focusing
MICROSCOPES 4th Quarter 2008.
Introduction to the Microscope
Compound Microscope Parts and Functions
Practical: for…practice
The Light Microscope.
Describe how the letter e appeared in the microscope
1.1b Microscopes.
Parts of a Light Microscope
Proper Use & Field of View
Cells, Tissues, Organs, Systems Plants and Animals
OL1 – 02 - MICROSCOPES. OL1 – 02 - MICROSCOPES.
Microscope Measurement
OL1 – 02 - MICROSCOPES THE MICROSCOPE (UD2) The microscope allowed humans to see a whole new world of life. Our limited senses did not allow us.
Introduction to the Microscope
Compound Microscope Review
Introduction to the Microscope
MICROSCOPE.
The Compound Microscope
Cells, Tissues, Organs, Systems Plants and Animals
MICROSCOPE.
Microscopes.
Measuring with a Microscope
A student, observing a micro-organism under a magnification of 40X, calculates that it is about 100 micrometers long. If she then draws the microorganism.
FIELD OF VIEW.
Introduction to MICROSCOPES & BIOLOGICAL DRAWINGS
Introduction to the Microscope
The Microscope Taking a look at the structure of the cell.
Introduction to the Microscope
The Light Microscope.
Introduction to the Microscope
Introduction to the Microscope
Describe how the letter e appeared in the microscope
A student, observing a micro-organism under a magnification of 40X, calculates that it is about 100 micrometers long. If she then draws the microorganism.
Biology The Light Microscope.
Introduction to the Microscope
Students will have their microscopes out, for reference as we go through each of the steps. As an introduction, students will be asked what kinds of things.
Introduction to the Microscope
Introduction to the Microscope
Do now Directions: Describe three differences between the STRUCTURES of Animal and Plant Cells. 1______________________________ 2_______________________________.
Presentation transcript:

Mitosis Root Tip Lab Observing Cells Under the Microscope

Eye Piece Tube Arm Objective lens Stage Stage Clamps Coarse Focus Revolving Nosepiece Arm Objective lens Stage Stage Clamps Coarse Focus Get the pupils to guess the name of the parts of the microscope before I show them Fine Focus Light Base

Drawing your Cells Underneath your drawing, provide a bar that indicates the size of your drawing For example, if your cell is 110 μm wide and your drawing is 11.0 cm wide, every cm of your drawing represents 10 μm – so draw a 5.0 cm bar and label it 50 μm Explain again on the board!!

General Steps for Making Biological Drawings Determine the diameter of the field of view (pg. 95) Formulas to remember: Estimate the size of microscopic objects (pg. 95) Make biological drawings (pg. 96) – use your checklists for help

My Drawing Cells Checklist My name: ___________________ Set up the lowest power objective lens ☐ Record the magnification number of the lowest power lens ☐ Place a transparent ruler on the stage and focus on the markings ☐ Record the distance in mm of the field diameter ☐ Convert mm to μm (1000 μm = 1 mm) ☐ Calculate field of view for any higher power lens (remember the formula) ☐ Remove the ruler from the stage and replace it with the specimen you would like to observe ☐ Focus on the specimen using the lowest power lens ☐ Switch to a higher power objective lens until you can see the specimen clearly and in detail ☐ Calculate the field of view of your microscope using the higher power objective lens (units: μm and mm) ☐ Calculate the fit number (amount of times your specimen seems to fit across the diameter of your field of view) ☐ Find the actual size of your specimen: divide field of view diameter by fit number ☐ Draw what you see – using a lead pencil ☐ Specimens are drawn using unlined paper and clean cut lines ☐ Drawing is clear and at least half a page in size ☐ Drawing is to the left of the page ☐ Labels are to the right of the drawing ☐ Lines are drawn straight and parallel ☐ Cell boundaries are shown ☐ Drawing has a printed and underlined title appearing below the drawing ☐ The scale bar is accurate and positioned between the title and your drawing ☐ Example of a good drawing (yours should be bigger)

Peer Review Drawing Cells Checklist My name: _______________ I am reviewing: _______________ Peer Review Drawing Cells Checklist Magnification number of the lowest power lens is recorded ☐ The field diameter is recorded ☐ Field of view for higher power lens is calculated ☐ Fit number (amount of times the specimen seems to fit across the field of view diameter) is calculated ☐ Actual size of specimen is found accurately: divide field of view diameter by fit number ☐ Lead pencil was used to draw what the peer saw ☐ Specimens are drawn using unlined paper and clean cut lines ☐ Drawing is clear and at least half a page in size ☐ Drawing is to the left of the page ☐ Labels are to the right of the drawing ☐ Lines are drawn straight and parallel ☐ Cell boundaries are shown ☐ Drawing has a printed and underlined title appearing below the drawing ☐ The scale bar is accurate and positioned between the title and drawing ☐ Example of a good drawing (yours should be bigger)