Theresa's NHCC Biol 1001 Home Page

Theresa's NHCC Biol 1001 Home Page
Last updated 5/09/2004.

my on-line schedule (I try to keep this updated.)

[Warning: not all links are active yet! I am also not done posting items]

Lab Exam 1 info | Lab Exam 2 info | Lab Exam 3 info

my Biol 1001 page Last updated May 4, 2004

Lab Section 72 (Sat. 11:45am-2:30pm, SC 111):

Last updated May 9, 2004

Lab Quiz 1 & 2, Homework 1, Homework 2 (D/O graph), Homework 3 (Meiosis Drawing), Homework 4 (DNA lab), and Lab Exam 1, 2 & 3 scores and statistics are now available on-line. (out of 155 pts possible)

Lab 1: Lab ch.1 | Lab 2: Lab ch.2 | Lab 3: Lab ch.3 | Lab Exam 1 (February 14, 2004)

Lab 4: Lab ch.4 | Lab 5: Lab ch.5 | Lab 6: Lab handout | Lab Exam 2 (March 27, 2004)

Lab 7: Lab ch.7 | Lab 8: Lab ch.9 | Lab 9: Lab ch.8 | Lab 10: handout | Lab Exam 3 (May 1, 2004)

Lab Exam 1: covers labs 1-3 (lab manual chapters 1-3)

Don't forget to look over the study guide you got from lecture!!!

Here are links to supplemental materials for particular labs (if you are looking for more info, or a different presentation of the info):

Lab 1: Lab manual chapter 1 "Scientific Investigation"
- Here are some alternate definitions/explanations for the terms in this lab:
  - Dependent Variable - this is what is being measured or counted in the experiment; the "results" or raw data. It changes in response to the experimental conditions - the dependent variable is dependent on the independent variable.
  - Independent Variable - this is the one variable that is changed or manipulated to test the hypothesis. The experiment is designed to test whether or not the independent variable has an impact on the dependent variable.
  - Controlled Variables - these variables are kept constant in all of the experimental samples. Basically, all of the experimental samples are exactly the same except for the presence/absence/amount of the independent variable. The controlled variables (or "constants") include EVERYTHING that can be controlled in the experiment, except for the independent variable.
  - Experimental Treatment - the treatment using the independent variable.
  - Control Treatment - the treatment without the independent variable. You want to know what happens without the independent variable, so you know that if the independent variable has an impact on the dependent variables in the experiment, that it was because of the independent variable and not something else. (This is also why the independent variable is the only variable that is different from one sample to the next, and this is why the controlled variables/constants are constant in ALL samples.)
Lab 2: Lab manual chapter 2 "Macromolecules"
- These links have some material you might find useful (keep in mind they are sites made for other classes at other schools, so just use the parts that are relevant to what we did in lab):
  - Encyclopedia4U.com's Benedict's reagent page (you probably just want to look at the first two paragraphs)
  - Exercise 3 on this University of Manitoba site is about Benedict's Test.
  - This Western Kentucky University site talks about saccharides, and the starch and sugar tests.
  - This Volunteer State Community College chemistry site goes into chemistry in more depth that you need for this class, but it does have a nice explanation of how the starch test works (and Benedict's).
Lab 3: Lab manual chapter 3 "Microscopes and Cells"
- Look at your lab manual and your textbook for the electron microscope material (scanning and transmission).
- Links to different microscope sites that might help (careful, though, they aren't all exactly the same as the microscopes we used in lab).
  - This Santa Monica College site has a bunch of text at the beginning, but if you scroll down to the microscope diagram, it's pretty close to one of the ones we used in lab. A little further down the page are some more good diagrams and explanations.
  - The labeled microscope diagram on this Edwards-Knox Central School site is different from the Santa Monica College diagram, but it also has some good diagrams and explanations (including calculating magnification and estimating size of specimens).
- Links to pictures of organisms observed in lab (I am only endorsing the pictures - I haven't had time to look carefully at these web sites, so I haven't double-checked the facts on these pages.)
  - Elodea
  - Amoeba
  - Scenedesmus
  - Volvox (cool - animation and sound!)
  - human epithelial cells; here's another one (not great, but you should get the general idea)
  - pond water organisms
Lab Exam 1: covers labs 1-3 (lab manual chapters 1-3)

Don't forget to look over the study guide you got from lecture!!!
Lab 4: Lab manual chapter 4 "Diffusion and Osmosis"
- Here is a link to some sample questions you might find helpful for this topic. Here's a link to the answers.
Lab 5: Lab manual chapter 5 "Enzymes" (see the general links on my NHCC Home Page)
Lab 6: handout "Photosynthesis and Respiration"

(see the general links on my NHCC Home Page)

Lab Exam 2: covers labs 4-6 (chapters 4 & 5, Photosynthesis & Respiration handout)

Lab Exam 3: covers labs 7-10 (chapters 7 & 9, Genetics handout, DNA handout)

Lab 7: Lab manual chapter 7 "Chromosomes and Cell Division"

(see the general links for Mitosis/Meiosis on my NHCC Home Page)

Lab 8: Lab manual chapter 9 "Animal Development"
- Sea star development (Some of these show some stages we didn't see very well, like the unfertilized ovum.)
  - This picture on a Clinton Community College site shows some of the basic stages of early sea star development all together, with labels. (The Clinton CC faculty member whose web site this is from looks like he has an interesting web site, with lots of material for several different biology courses.)
  - This University of Detroit Mercy site shows individual pictures of stages of sea star development in nice detail with labels, all on one page (also shows two pictures of stages past the bipinnaria stage).
  - These Augusta State University pages are neat because they show each stage on its own individual page, with a very brief description of the stage (good info without burying you in details).
  - This Howard College - San Angelo site also has some nice images.
  - This Cuyahoga Community College site has images of several early stages.
- Frog development
  - This California State Polytechnic University, Pomona, site has lots of images on it. If you scroll down to "Embryology", you'll find images for starfish (sea star) and frog development.
- Chick development (we had slides for 18 hour, 24 hour, and 56 hour)
  - This Cuyahoga Community College site has very nice images of several stages of chick development: 16 hour, 24 hour, 33 hour, and 56 hour.
  - This Biology Learning Center site at Grand Rapids Community College has links to images of chick development: 24 hour, 48 hour, and 72 hour.
  - This Cuyahoga Community College site has very nice images of several stages of chick development: 16 hour, 24 hour, 33 hour, and 56 hour.
Lab 9: handout "Genetics"

(see the general links on my NHCC Home Page)

Lab 10: handout "DNA"

Lab Exam 3: covers labs 7-10 (chapters 7 & 9, Genetics handout, DNA handout)

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The views and opinions expressed in this page are strictly those of the page author.The contents of this page have not been reviewed or approved by the University of Minnesota.

The views and opinions expressed in this page are strictly those of the page author.
The contents of this page have not been reviewed or approved by the University of Minnesota.