Lab Report Answer the questions below. When you are finished, submit this assignment to your teacher by the due date for full credit. (3 points) ScoreHow do you calculate magnification on a microscope Answer Multiply the lens by the eyepiece magnification to get the total. (4 points) ScoreExplain how to focus a microscope using the high power lens. Include any safety issues you need to be aware of. Answer To focus a microscope using the high power lens, you need to carefully turn the focusing knob, and be careful of the lens so that it doesnt touch the slide. It can damage the lens, or break the slide. (1 points) ScoreWhy is it important to keep a microscope covered when youre not using it Answer It is important to keep a microscope covered when not using it so that it doesnt get dusty, or dirty. (1 point) ScoreSketch what you observe when examining the onion root tip using the low-power lens and the high-power lens. Label the sketches or write a brief description of your observations. Answer Answer is below (1 point) ScoreSketch what you observe when examining the brine shrimp using the low-power lens and the high-power lens. If you saw different forms of the shrimp, try to determine which is more mature and describe the differences. Answer is below Answer SHAPE MERGEFORMAT Your Score___ of 10 Graded Assignment SCI203A Biology Unit 1 Lesson 5 Laboratory Using a Microscope 2006 K12 Inc. All rights reserved. Page PAGE 1 of NUMPAGES 6 Copying or distributing without K12s written consent is prohibited. cEw--WeTFXeXncEvAJvbR6DQY/T Oi aqUquUtD1XY R1apV.VsvLmeY E09oen@8MBIO v5UKV,0OjKXArLd1d5tfKu QyeguiBukOSA.ZTZwEn i8w-IYVvLCpdVXXwnv5rIYh2V3AJ9b XYzigHNm Mp WBzVMYd1VKoHGz1wutJHVyG2(UFi_hwrNS7,u6DSTzJuueFfz CJx)yHAFO_VUKkdy7rehBJ8uX4,YwKSKInKp 808X2, cy/kXGYzZBbwdhx9RM7nGj)wQ,oq1 )_VlwO
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Nick Sarris, April 3, 2013, D-Bell Biology
Virtual Electrophoresis Lab – Genetic Science Learning Center
Use the link to complete the following lab.
Submit through edline when you are finished
Title, name, date and bell (8 pts)
Place your answer below the question and skip between questions (2 pts)
Each question is worth 3 points
1. Why can’t DNA be sorted physically, using a microscope?- They are so tiny that they are unable to be….
Lab #1 ‐ Introduction to the Microscopy &
Observation of Prokaryotic and Eukaryotic
Many of the cells and organisms that you will be studying are at the lower
limits of visibility of light microscopes; therefore, it is extremely important
that you attain critical lighting and focussing. It is also important to handle
the microscope competently to avoid damaging either the microscope or
the preparation you are studying….
Lab Report: Scientific Method
Your Name: Alyssa Melincoff
Purpose of this Lab
What is the goal of this lab? What question is it trying to answer, or what problem is it trying to explain?
To find out how table salt affects the boiling temperature of water.
After reading the lab instructions - but before starting the lab - record your best “educated guess” about what will happen in the experiment. What hypothesis can you generate about the effect of adding salt to water?
IB SL Biology Lab
Transformation and Electrophoresis
How can a plasmid be engineered to include a foreign piece of DNA and how does gel electrophoresis separate DNA molecules present in a mixture?
If the pGLO plasmid is inserted into competent Escherichia coli cells, then the transformed bacteria will be resistant to ampicillin and will glow green under UV light. If samples of DNA are cut using certain restriction….
Name: Angel Simon
1. Label the following microscope using the components described within the Introduction.
Experiment 1: Virtual Magnification Exercise
1. At what magnification do you first notice the ragweed pollen?
2. Which is bigger, a rhinovirus or E. Coli?
Answer: E. Coli
3. Based on the magnification, how many of the E. Coli can fit into the same space as the….
Objective and Hypothesis: The objective of this lab is to determine the effects of SDS, HCl, and NaOH on red cabbage cell membrane. Prior knowledge can tell us that the red cabbage is a red-purple color due to a pigment called anthocyanin. This is what we will be testing in the experiment. We also know that HCl is a strong acid (very low pH) and that NaOH is a strong base (very high pH). From information learned in this course (lecture/lab) we can assume that both a very high and low pH will….
Lab 10 Name:
Complete the following then save with your name and attach to the dropbox for lab 10.
Data Tables and Post-Lab Assessment
1. Label each of the arrows in the following slide image:
D. Cell wall
2. What is the difference between the rough and smooth endoplasmic reticulum?
3. Would an animal cell be able to survive without mitochondria? Why or why not?
G. Y. S.
I. Objective: The purpose of this lab is to put the solutions in chronological order from least to most molarity. If the solutions are hypertonic then, the water will go in and the order of the substances will be C, D, A, B, E.
II. Materials and Methods: See attached page.
Results: Table 1.1
III. Table 1.1
| Initial | Final | % Change |
A | 11.4 | 11.86 | 4.03% |
B | 11.67 | 15.33 | 33.68% |
C | 10.84 | 11.86 | 9.4% |
D | 12.02 |….
Read over the parts of the microscope and answer the following questions:
1. What do you call the lens you look through on the microscope?
2. What is the difference between the ocular lens and the objective lens?
Ocular lens is the lens you look through and objective lens is the lens that is close to the stage.
3. Where do you place the slide on the microscope?
the stage under the stage clips
4. Which adjustment, course or fine, do you use when you are observing the….
hold another paperclip at the appropriate distance: six cm, seven, eight, nine, ten, twelve, fourteen, sixteen, eighteen, and twenty centimeters.
5. Lab partner must close eyes tightly.
6. Starting with the largest distance, place either one or two ends onto your partners skin (ALTERNATE RANDOMLY so the partner can’t guess!!!)
7. Have lab partner tell you how many ends they can feel. Do this 5 or 6 times.
8. Then try the next smaller distance and repeat steps 6 and 7.