Cow Eye Dissection Assignment

Many of you have already turned this in.  If you did the dissection, you should turn in your observations of the dissection, as well as an explanation of the relationship between structure and function for the following eye parts:  sclera, cornea, iris, lens, retina, optic nerve.  You can turn in one of these per pair who did the dissection.

If you did not do the dissection, go to the virtual dissection linked on the website and do it.  You may also watch the video from the Exploratorium on Cow's Eye Dissections.  Then, explain the relationship between structure and function for the same 6 eye parts listed above:  sclera, cornea, iris, lens, retina, and optic nerve.  For people not doing the dissection, this should be done individually.  Turn in by Friday, April 19.

April 15-April 19

3rd Quarter Grades are Updated.  Check yours and see if you have any questions.  There is a SPARK lecture on Earthquakes on Mon 4/15.  All SPARK lecture write-ups need to be turned in by Friday of the week they are given and we are now asking that they be submitted through turnitin.com.

• Mon 4/15:  Finish up Neurobiology and Behavior.  Innate behavior vs. learned.  Pavlov's dogs.  Birdsong.  Turn in Eye Dissection if not already.  Hand out Review for Evolution and Neurobiology and Behavior.'
• Wed 4/22:  Review biochemistry, cells, cellular respiration, and photosynthesis.
• Fri 4/24:  Review replication, transcription, translation, biotech, and evolution.

April 1-11

• Mon 4/1:  Action Potential and Neurotransmitter Simulations on the computer.  Write down the steps of each and turn in as a pair.
• Wed 4/3:  Stimulus and Response.  Synapses.  Excitatory and Inhibitory responses.  Action of drugs. Cocaine and THC.
• Fri 4/5:  Parts of the human brain.  How do we know about the brain?  Pupil reflex, unconscious behaviors, and pain.  Animal behaviors:  foraging, rhythmic behaviors, social organization, exaggerated traits.
• Tues 4/9:  Innate behavior vs. learned behavior.  Birdsong.  Sensory receptors.  Structure of the human ear.  Structure of the human eye.
• Thurs 4/11:  Dissecting cows eyes.  Wrap up neurobiology.  

The Mind Project Simulation Website

Here is the link.

Go to this site and watch the section on Action Potential.  Watch it several times and write down the steps of transmission in order.  Then go to the Classical (chemical) Neurotransmitter part, watch it a couple of times, and write down the steps in order.

Happy Spring Break!

If you missed class on Friday, I added some additional questions about the nervous system.  You should answer them in your notes and I will check them off when we get back from break.  I also added a review packet for the topics we covered last year (with the exception of evolution).  You should start going over the topics, checking what you know pretty well, what you need lots of review on, and what you haven't heard of before.  We will be doing some comprehensive assessments to prepare for the IB exam towards the end of April.  Everyone will participate in these assessments, not just IB testers, so make sure that you spend some time on the review.  Many of you have already submitted the Antibiotic Lab, but there are still many that have not been received, so hopefully I will be seeing those soon.

Enjoy your time off!

Book Work after Reproduction Test

Start on page 960 in old text

1. Define the following:

Central nervous system, effector cells, nerves, peripheral nervous system

2.  Define the main parts of a neuron:  cell body, dendrite, axon, myelin sheath, Schwann cell, synaptic terminal

3.  Draw a vertebrate neuron and label the above parts

4.  List the 3 classes of neurons and their functions?

5.  What is a reflex?  Describe the knee-jerk reflex in detail.

6.  What are "glia" and what is their purpose?
7.  What is the importance of the blood-brain barrier?
8.  What is the purpose of the myelin sheath around axons?  What disorder involves the degradation of this sheath?
9.  What is membrane potential and what causes it?
10.  How do ion channels affect the membrane potential?
11.  What are the resting potential and action potential of a neuron and what do they have to do with polarization and depolarization?

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3/11-3/22

Whoops, I forgot to update this last week.    There is a SPARK lecture on engineering on Monday 3/18.  If you are taking the IB Biology Exam, please turn in any graded or ungraded IB labs before Spring Break!!

• Mon 3/11:  Fertilization videos.  Structure of mature sperm and mature oocyte.  Human fertilization.
• Wed 3/13:  Pregnancy and IVF worksheet.  Do the pregnancy part with the text books and the IVF part using the internet (site your resources).  
• Fri 3/15:  Antibiotic Lab due.  Please turn in a hard copy and a copy via turnitin.com.  Practice drawings for this unit.  Exchange drawings and check for accuracy.  Notes on the placenta and IVF.  Hand out Hormone and Reproduction Review.  Test on Wed 3/20.
• Mon 3/18:  Ethics of IVF.  Any questions on Review Sheet?  Writing outlines for this Review Sheet is optional.
• Wed 3/20:  Turn in Hormone and Reproduction Review before test if you are going to turn it in.  Take Hormone and Reproduction Test.  Start the nervous system.
• Fri 3/22:  Neurons and synapses.