Welcome Back From Spring Break!

We are going to be very busy for the next 4 weeks!

• Mon 4/3:  6.5 Material.  Structure of neurons, myelinated nerve fibers, resting and action potentials, transmission of a nerve impulse, synapses.  Read A1 and A2 for Wednesday!
• Wed 4/5:  Neurodevelopment and the human brain.  Read A3 for Friday!
• Fri 4/7:  (Full 8 Day, so short classes)  Perception of stimuli, olfactory, visual, auditory.  Read A4 for Monday!
• Mon 4/10:  Dissection of Cow's Eyes.  Review structure of the eye and ear.  Innate and Learned Behavior.  Read A5 for Wednesday!
• Wed 4/12:  Reflex arcs. Learning.  Psychoactive Drugs.  Read A6 for Friday!
• Fri 4/14:  Ethology (animal behaviors).  Kahoot Review on Neurobiology Option.  Paper 3 Test on Tuesday 4/18.
• Tues 4/18:  Paper 3 Test.  Review past material.
• Thurs 4/20:  Giant Kahoot Review for the whole 2 years.  Papers 1 and 2 taken next Monday and Wednesday.
• Mon 4/24:  Paper 1 (multiple choice).  Review data-based questions.
• Wed 4/26:  Paper 2.  
• Fri 4/28:  Go over the Practice Tests.
• Mon 5/1:  Afternoon:  IB Biology Tests:  Paper 1 and Paper 2
• Tues 5/2:  Morning:  IB Biology Test:  Paper 3.

What's going to be on that big test on Thursday, 3/23??

The topics are Muscles (11.2), the Kidney (11.3), Hormones (6.6) and Reproduction (6.6 and 11.4).

1. There will be about 15-20 multiple choice.  Check out the Kahoot quizzes (2 of them) for ideas.
2. You will have to draw and label either the human kidney or a sarcomere.
3. You will have to label either the female reproductive system or the male reproductive system.
4. You will have to label a sperm or an egg or an elbow joint.
5. You will have to answer 4-5 out of 6-7 short answer questions.  Possibilities include:  outline the steps of a muscle contraction starting with nerve impulse, describe what happens at different parts of the nephron/glomerulus, compare and contrast type I and type diabetes, outline the steps of fertilization, compare and contrast spermatogenesis and oogenesis, outline the process of in vitro fertilization, outline the structure and function of the placenta.

The weeks of 3/13-3/24

• Mon 3/13:  Review kidney.  Blood glucose control and diabetes.  3 more hormones (thyroxin, leptin, and melatonin).  You take notes on them.  Male and female reproductive anatomy.  Male and female hormones.  Reproductive System coloring sheet.   Read 11.4 in text.
• Wed 3/15:  Hormones of the menstrual cycle.  Human Reproduction worksheet.  Work independently or in groups.  Go over spermatogenesis vs oogenesis and structure of ova and sperm.  Go over fertilization.  Start reviewing cellular respiration and photosynthesis.
• Fri 3/17: Final IA's need to be turned in by today if you want me to have time to do a good job on grading it.   The placenta, pregnancy, and birth.  In vitro fertilization.  Review for Muscle, Kidney, Hormone, and Reproduction Test to be taken on Thursday 3/23.
• Tues 3/21:  Review for Big Ole' Test!  Kahoot, what will be on the test, etc.  
• Thurs 3/13:  Take Muscle, Kidney, Hormone, and Reproduction test.  Start structure of neurons.  Read 6.5 and Option A over Spring Break!  If you haven't turned in your IA, it needs to be turned in by today!

Muscle Bookwork: To be done after quiz on Wed 3/1 and for homework if you don't have time in class.

Starting on p. 480 of 11.2:

1. Describe what is unique about muscle fiber cells.
2. Draw a labeled diagram of a muscle fiber.  
3. Describe the structure of myofibrils.
4. Draw a labeled diagram of a sarcomere.
5. Describe the mechanism of skeletal muscle contraction.
6. Outline the control of skeletal muscle contraction, including the role of ATP.
7. How did scientists use fluorescent dyes to demonstrate the role of ATP in the actin-myosin interaction?

Survey code: goo.gl/forms/2Rye9V4Jx4aiVycv1

Instructions for submission of your IA

You will turn in the final draft of your IA through turnitin.com.  The official due date is Tues 3/7, and while it can be somewhat later, keep in mind that I need to have time to grade it and I will not spend my Spring Break grading IA's, so if you turn yours in really late, I honestly will not have time to give it a thoughtful consideration before the scores need to be submitted to IB.

1. Please remove all identifying information before you turn it in, so no names, yours or anyone else's.
2. Make sure that your question is truly focused.  Some were too vague.
3. Make sure you cite sources that you used.
4. Make sure that you specifically address safety, ethics, and environmental concerns, especially if you were using humans or other animals in your investigation.  
5. Make sure that your data tables and graphs have labels, units, uncertainty.
6. Make sure that you use lots of data in discussing your results.
7. Make sure that you refer to the scientific context (in some cases, this might not be possible, but in most, it is).
8. Make sure that you include STRENGTHS of your investigation!
9. Check your evaluation.  Some of you had bare minimum, somewhat uninspired lists of 3 sources of uncertainty.  Those will get lower scores, and doing a more thorough job on this section is not that difficult!
10. Proofread!!  There were some typos when I read these and I didn't correct them because I didn't feel it was my job.  Please re-read it yourself and have somebody else read it for spelling and clarity.  Communication is a whole 4 points and it is a shame to lose points on this that could be easily prevented.  There is also a 12 page limit and you will be penalized a point if you go over this.
11. If you have some questions on these, ask me before you submit your IA.  

Updated version of what we are doing (Early March)

• Mon 2/27:  Group IV Project
• Wed 3/1:  Immune System Quiz/Test.  Check off Sustainability Worksheet (everybody, not just Group IV people).  Muscle Bookwork from 11.2 (see above post).  Reminders about IA submission (see above).  Read 11.2.
• Fri 3/3:  Muscles and Joints.  Dissect chicken wings.  Labeled drawing, observations, and 3 structures and functions described turned in in pairs.  Watch Video on muscle action.
• Tues 3/7:  Official due date of final IA through turnitin.com, although somewhat flexible.   Finish up dissecting muscles and movement and start on structure of the kidney, including the functional unit of the nephron.  Read 11.3.
• Thurs 3/9:  Describe what happens at each point in the kidney, including the function of the Loop of Henle and ADH.  Treatment of kidney failure and urinalysis.

Respiration Quiz on Tues 2/14

• Distinguish between ventilation, cell respiration, and gas exchange
• Identify parts of the respiratory system on a diagram:  trachea, bronchi, bronchioles, alveoli, diaphragm, intercostal muscles
• Outline structure and function of the alveoli.
• Be able to state the shape and function of type I and type II pneumocytes
• Be able to outline the process of breathing in terms of muscle action, pressure, and volume
• Be able to explain why muscles come in antagonistic pairs and identify the antagonistic pairs in breathing
• Be able to describe how you would go about doing a ventilation experiment
• Be able to outline the causes and consequences of both lung cancer and emphysema