Shannon Eslinger (January 21, 2010)

Reminders:
-5 days until final exam
-Today was the last day to hand in all missing assignments
-Last day of Bio20!!

What we did today in class:
1) Mark unit 2 and unit 3 quizzes
2) Overview of unit 4: Human Body Systems

NOTE: Tutorial on Monday 25 from 4-6, the quiz on unit 4 will be due that day as well

Thoughts about material:
-It is a good thing we are reviewing the Human Body Systems because there is a lot of material that needs to be covered.
-If you want to get 80% of higher on the final exam you need to know the basic structure and function of all the body systems plus the "nitty gritty"
-I liked the fact that Mr. Challoner made us do a survey on the class and his teaching. It shows that he is actually willing to improve his class.
- (Digestive system) What is the difference between pepsin and pepsinogen? Pepsinogen is an inactive form of pepsin in a nut shell.

Above and Beyond:

http://www.kidskonnect.com/subject-index/31-health/337-human-body.html

This little website is a compact overview of the systems that we have learned. It gives some of the systems that we didn't learn but it still has good information.
This was taken from the cite:

The human body is made up of a head, neck, torso, two arms and two legs. The average height of an adult human is about 5 to 6 feet tall. The human body is made to stand erect, walk on two feet, use the arms to carry and lift, and has opposable thumbs (able to grasp).



The adult body is made up of:
100 trillion cells
206 bones
600 muscles
22 internal organs

Stuff you should know/ Questions:

1) What do B-cells do in the blod?
answer: They produce anti-bodies with helper T cells

2) Is there a nucleus in the red blood cell?
answer: No.
Why? Because they need the room to transport gasses throughout the body.

3) What type of type of cells are used when trying to diagnose your blood type?
Red blood cells

-The lungs are not symetrical because of where the lungs are. The lungs surround the heart and protect it.
-Hemoglobin combines with carbon dioxide so that the cell cannot connect with oxygen like it usually does. That is carbon monoxide poisoning.

Taylor Plemel (January 18, 2010)

What we did:
- started our review sessions preparing us for finals
- reviewed E and Matter Exchange in the Biosphere
- did practice test pertaining to the above bullet
- started into reviewing Ecosystems and Population Change
Thoughts and Opinions:
- it was good to start review in class considering lots of people probably hadn't started until then
- the first law of dynamics kind of makes me question it, because isn't there the exception of the sun? (unless you get really deep into it and look at the physics part of it all)
- if you took any part of an ecosystem away, the whole thing would have to shift and adapt to maintain a dynamic equilibrium
Above and Beyond:

^ A diagram of how the greenhouse effect works.

- Question: What is an agal bloom?

Answer: a rapid increase or accumulation in the population of algae in an aquatic system.

- An example of nitrogen fixing bacteria: Nitrogen fixation is utilized by numerous prokaryotes, including bacteria, actinobacteria, and certain types of anaerobic bacteria. Microorganisms that fix nitrogen are called diazotrophs. Some higher plants, and some animals (termites), have formed associations (symbiosises) with diazotrophs.

Shaun Bubela Jan.14.10

Review of the class:
Block 1
-Recall
     -Talked about yesterdays Video Conference
-Mr. Challoner made Bree hold a bag that demonstrated muscle fatigue
-Discussed lactic acid
-Had a motor system power point
-Types of muscles
     -Skeletal
     -Cardiac
     -Smooth
-Focused on Skeletal muscle
-Read Pg.300-301
-Do questions #1 on Pg.304 and #6 on Pg.308
Block 2
Experiment on the Muscular system

Thoughts about the class:
I thought that the video conference was a good idea and I'm happy that Mr. Challoner did it. Thank you! The power point was a good visual of the differences between the three muscle types. The experiment on muscles was not to shabby but it could have been better. Mr. Challoner helped out with the majority of the questions so thanks.

Above and Beyond

http://en.wikipedia.org/wiki/Smooth_muscle

This link is about the smooth muscles in your body. Smooth muscles are like your stomach. Its function is to maintain organ dimensions against force, cells are fastened to one another by adherens junctions.

Inge van den Hadelkamp Jan 12

Review of the Class:

- Recall
     - Quiz
     - Rearange Terms
1. Osmosregulation
2. Disorders
3. Ticket


Thoughts about the class:

I thought that the materail we covered was very intresting. It never knew that 2 small kidneys could be so important to your body. Also osmosrelulation involves all hormones. It is intresting how affective hormones are in your body. They do regulate a lot of reactions and regulations of your body. I wonder if an increase in Na reabsorption can really harm you?


Above and Beyond

Can increased Na reabsorption really harm you?

http://www.jbc.org/content/274/50/35449.full.pdf

Kyla Stevenson, (January11, 2010)

What we did in class:

• Learned about the nephron, the three processes of filtration, reabsorbtion, and secretion. As well as their functions in the nephron.

My thoughts and opinions:

-Learning about the parts of the nephron was kind of hard to figure out, but over all i learned quite a bit from it. It's useful to learn about our body functions so we understand what is actually going on inside. The material is easy once you catch on to it.

Above and beyond:

-The link below is to demonstrate the functions of the nephron in the kidneys:

http://www.youtube.com/watch?v=glu0dzK4dbU

Stephen Carrier, January 8th (3/3)

What We Did In Class
-We wrote a test on the respiratory system and marked test.
-Started notes on excretory system.

My Thoughts And Opinions
-The test on the respiratory system wasn't extremely difficult. It mainly just covered the basic points of the the respiratory system.

-The notes on the excretory system werent very in depth so far, just learned the three main functions of the excretory system, they are:
-Maintaining blood pH.
-Removing bodily waste
-Maintaing water level in body

Above and Beyond
-This hyperlink is to some information on kidney donation which was a topic that appeared fequently in class.
http://www.lhsc.on.ca/Patients_Families_Visitors/MOTP/Kidney_Transplant

Shaun Poissant Jan 9 2010

I thought the class was good. I think we stayed quite focused.
The material was very straight forward. we talked about the respiratory system (hemoglobin, plasma, carbonic acid and how it doesn't turn into a harm for the body) I found it wierd when our body produces an acid that can change our Ph and harm us but thenks to hemoglobin that doesn't happen.

Lexie Nylund December 21,2009

What we learned:

Double Bio

• Exchange xinfo x immune system
• Evaluations
• Complete questions in back of hand out
• Quick Video
• Resp System

My thoughts and opinion:
The class was pretty good, learned more about the resp system.... hard to focus since christmas break was coming up

Above and beyond:
Most B-cells are produced in the bone marrow expect in rabbits in the appendix-sacculus rotundus.

Grant Lahring December 16 (3/3)

What We Did:
- Went over notes on the blood types
- Reviewed blood types and blood clotting
- Learned how certain deficiencys can lead to hemophilia
Thoughts and Opinions:
- Probably the most practical thing we'll ever learn in biology
- I should find out my own blood type (Considering donating blood, heard rumors of doughnuts)
- Kind of of that O type blood, with no antigen, is universally accepted, it seems although the body would more likely attack something with no antigen than something with, say, 1 of 2 antigens. If having no antigens means univseral acceptance, why don't virus' have no antigens?
Above and Beyond:
- Sorry, internet is glitching again, can't get a picture (Cuuuuuuuuuurrrrrrrrsssssssseeeeeeee you dial-up)
- My blood type is type O, negative, the universal donor, so I will donate blood after all ^_^
- The human human heart can squirt blood up to 30-feet. Wow.

Codee Koch,Tue December 15, Blog #3 3/3

What We Did
- A recap of pg 372 d, e, f, g
-filled in and read the blood clotting handout
-reviewed blood typing
-reviewed the immune system

Thoughts and Opinions
-at first the blood typing was confusing but eventually it became easier to understand
-the system of blood clotting was pretty easy ( the definitions and how blood clotting works, fibrinogen, prothrombin, etc...)

Above and Beyond
-below is a picture of certain blood types

Bree Harrison (December 10th, 2009)

What we did:
-Handed in ticket to the test pg.346 #1-5,7-9,11,13,14,18
-Chapter 10 quiz.
-Dissection questions due tomorrow.

My thoughts:
-I found it interesting that the pulmonary circulatory system is the system of blood vessels that carries blood to and from the lungs.
I also found it different that the right and left side of the heart are different from when you compare them in your chest. This is confusing because you mix up the sides on test questions.

Above and Beyond:

This link shows cardiac output which was a key point in chapter 10.

Rebecca Eddy (Wednesday December 8, 2009)

What we did:

• Marked the homework from Tuesday and then handed it in (blood flow from capillaries back to capillaries in reverse).
• Went through page 320.
• Learned about heart sounds.
• Learned about heart beats and took notes on them.
• SA and AV nodes. 
• Gave us the pig dissection sheet for Wednesday.

Key Definitions:

• Myogenic muscle: Muscle that contracts due to nerves within the tissue.
• Node: Cluster of nerves.
• SA and AV nodes: The SA node acts as a pacemaker and is located in the upper right atrium. The AV node acts as the conductor and they both send nerve impulses. The SA node activates the AV node.
• Purkinje fibres: Fibres coming from the AV node to the bottom of the ventricles and then branch upwards. 
• Systole: Pressure in circulatory system due to ventricle contraction.
• Diastole: Blood pressure in circulatory system due to relaxed ventricles.
• "Lubb": The sound that the closing of AV valves makes. It is louder than "dubb".
• "Dubb": The sound that the closing of semilunar valves makes.

Thoughts and Opinions:

I think that there was alot of definitions to take in. After studying a bit though, it was pretty easy to understand. I think the most difficult part to understand was the SA and AV nodes.  

Above and Beyond:

    
This is a picture of the heart that shows you where the AV and SA nodes are. It also shows you the way the nerve impulses go.

Shannon Eslinger (Dissection Day!)

The Plan For Today:

Recap:

-purkinje fibres

-hearbeat
     -pace maker?
-heart sounds? Lub dub

Purkinje Fibres: a nerve fibre that branches and carries electrical impulses throught the ventricles

The normal heart sound is typically described as "lub-dub." The "lub" sound is usually softer and longer than the "dub", and it is associated with the closing of the A-V valves at the beginning of systole. The sounds are also amplified by the chest, making them more audible. The sounds of the heart are only from the valves closing, not opening. The "lub" is the first heart sound. The "dub" sound is shorter and louder than the "lub" sound. It is associated with the closing of semilunar valves (aortic and pulmonary). The sound is shorter and louder because the cusps of the valves are more rigid than the mtral and tricuspid valves. - http://library.thinkquest.org/C003758/Function/Sounds.htm

1) Dissection

     -overview

     -safety (goggles and gloves)

     -group of three

     -clean up

2) Chapter 10 Test (However we didn't get to that part so study up for tonight) The test will be on Dec 9, 2009 (Thursday) and the ticket is due as well (Pg.346-347 #1-5, 7 , 9-11, 13, 14, 17, 18)

Thoughts/Opinions

The pig heart dissection was amazing.. stinky... but amazing. It involved a lot of snipping and slicing away at membrances and fat. We got to take a look at where the valves were and the arteries and the ventricles. It was double Bio today so we dissected in both blocks. Yeah, right before lunch, just wonderful! But overall it was a pretty sweet class that flew by... unlike other bio classes :) just jokes.

Above and Beyond

This is actually a picture of a human heart but it is similar to a pig's heart. As you can see there are the valves and whatnot which I think we should have seen but they were sort of tricky. For those who missed this class, I feel sorry for you...you missed a great class.

Cordel Evans wednesday class.

Class review: We talked about the heart beat on wednesday. He explaind some terms concerning the heart beat. Miogenic muscle witch is muscle that contracts due to nerves with in the tissue buy its self. The nerves in a heart help the muscles contract. He also talked about SA nodes and AV nodes. SA and AV nodes send a nerve message to the tissue of the heart telling it to contract and relax. SA sends to atruim and AV sends to Ventricular. We also talked about purkingi fibers that exept the message from the nerves. Systole means preasure in the circulatory system due to ventricular contractions. Distole means presure due to relaxed vventricles.

some aditional questions are how the SA and AV nodes are developed through embriology? An opinion is that we should go through the material more slower so we get a beder understanding.

Tiffany Courchesne December 2nd 2009 (second)

What We Did

- Test about digestion

Thoughts/Opinions

-The test was rather difficult
- It was hard to know all of the function of the secretins ( tripsin, erepsin, pepsin etc...)
- The whole thing went very fast. ( i am guessing its to get us ready for next year)

Above and Beyond

This is a more complex look at the digestive system this tells me that there is a lot more that we could have learned. like the transvers colon, the hepatic flexure and many more

Kyla Stevenson, November 25, 2009

~Review of the class~

1) Protein catalysts

2)Catalyst: Speeds up or slows down the rate of the reaction.

3)Enzyme Action:
     -Substrates-molecules to bond
     -Enzyme-protein that facilitates bonding between substrates.
     -Enzymes are NOT changed, so they can facilitate many substrate bondings

4)The effect of enzymes on activation energy: The enzyme reduces the activation energy required for substrate bonding.

~Thoughts/Opinions~

-It was actually interesting to start learning about the digestion system, it's important to learn about and have an understanding of how it's important to be healthy.

~Above and Beyond~

-The link below demonstrates the effect of enzymes on activation energy using a graph:
http://scholar.hw.ac.uk/site/biology/activity4.asp

Lexie Nylund, November Double Bio monday 16th

What we Learned

• Read and understand lab pg 195
• Pigment Lab
• Looked at notes he gave us (photosynthesis notes)

What we looked at

 

• The cycles of photosynthesis
• Calvin benson cycle
• The phases of the calvin benson cycle

 

What i thought

 

• I thought the photosynthesis was one of the hardest unites and should of had more time.
• The cycles were interesting to see how the calvin cyle and how everything fit in place and how it goes into G3P into glucose to starch and sucrose

 

Above and Beyond

 

• The Calvin-Benson cycle can be constructed step by step. To do so, the required energetic or reduction quivalents (ATP or NADPH) must be dragged to the reaction vector and the correct enzymes for the next reaction step must be chosen.

•  Phase 1: carbon fixation
• Phase 2: reduction
• Phase 3: Regeneration of CO2 acceptor (RuBP)

November 24th. Stephen Carrier 2/3

What We Did Today - Hand in homework (Introduction questions to new unit)
- Did notes on Carbohydrates, Lipids & Protiens
- Learned about Hydrolisis.  (Breaking Down Carbohydrates Using Water.

My Thoughts On The Class
- I thought that most of the stuff we did in class a review from Science 10. For instance we learned that proteins were composed of amino acids last year.  Some new stuff to me was learning about Hydrolisis and Dehydration Synthesis.  Though the learning about trans fats was interesting because I have always wondered what wascausing all the fuss with food companies and people when they are buying food.  Also learning about metabolism was informative as people always talk about it but never really explain what it actually is, I intrigued by that part of our class.

Taylor Plemel (November 16, 2009)

What We Did That Day 3/3
- went over the products of the Calvin Cycle
- learned that PGAL is the same as G3P
- learned the 3 phases of the Calvin Cylce: Carbon Fixation, Reduction, Regeneration of CO2 Acceptor
- learned that G3P is used to make carbohydrates such a glucose

My Thoughts On The Class
- the Calvin Cycle is pretty complex and a really important part of photosynthesis
- it's interesting that one cycle requires light while the other one can continue without
- in my opinion, it might have been easier for me to learn about photosynthesis if we'd learned about it first
  instead of cellular respiration

Above And Beyond

- above, a diagram of CR

- above, a diagram of photosynthesis

- put these two above diagrams together and you have the two most important cycles in life

- here is a link explaining about G3P and the other names it can go by: http://en.wikipedia.org/wiki/G3P