Thurs & Mon

Thursday

HW:
finish heart dissection lab
read 33.2 & complete 4 corners wrksht
Due: Mon

Monday:

Hw:
Read/annotate up 33-35 due:tomm
HR Lab due: thurs?

today in class we got our heart quizzes back and a grade report. we also started the HR lab with a partner for the rest of the class period and tommorow we will try to finish it up by finding class average and it is possibly due thursday.....

next scribe is daniel :D

Wacky Wednesday!

Agenda:

• Take out UP 11-17 w/ stampsheet
• Discuss the heart
• Work on colorcodes 

 The first thing that we did today was fill out a diagram of the heart. We then discussed the different parts of the heart that were shown on the diagram.

Circulation in Humans

The heart has 4 chambers and has a double-loop circulation system.

• Pulmonary circulation: blood is pumped from the right side of the heart to the lungs
• Systematic circulation: blood is pumped from the left side of the heart to the rest of the body

The Human Heart

The heart is a hollow muscular organ surrounded by a protective sac called the pericardium. Myocardium is the muscle in the heart walls. The septum divides the heart in half so that deoxygenated blood doesn't mix with the oxygenated blood. The 2 chambers at the top of the heart are the atrium and the 2 on the bottom are the ventricles. Valves separate the atrium from the ventricles so that the blood wont flow backwards.

Blood Vessels 

Arteries: 

• carry blood away from the heart
• are thicker to accommodate pressure
• coronary arteries- bring blood from the heart back to the the heart's muscle to provide oxygen for the heart cells

Veins: 

• brings blood to the heart
• have valves

Capillaries: 

• smallest vessels; only one cell thick
• diffusion occurs between capillaries and all cells
• gas exchange

 Homework:

1. UP 21-23
2. Quiz tomorrow on: 

• heart parts
• order in which blood flows through the heart
• which side of the heart has oxygen/deoxygenated blood
• structure/functions of blood vessels

Tuesdayy!

Agenda:

Hand in cornell notes

learn and talk about circulation

circulation fun facts!

In Class:

We talked about circulation and how blood moves through the heart. We reviewed the parts of the heart blood gets pumped through. We did a group or solo worksheet of fun facts about circulation. Did you know that earthworms have multiple hearts?! Through out the class mrs. Stein played the pumps your blood song multiple times for us to hear, which was helpfull for some of us. If we learn the song and sing it infront of the class we can get EXTRA CREDIT! :)


Homework:

Read and annotate Healthy Heart Reading; UP 11-16 and answere questions on page 17

Terrific Tuesday!!

Todays Agenda:

• Go over Kidney lab
• DISECT KIDNEY!!!

In the beginning we started by going over the kidney lab and what we were supposed to do. We also went over safety instructions:

• no rough housing
• wear gloves
• wear safety goggles

As soon as we were done with that we went to our lab bench and got our kidneys.

Our first instructions were to observe the kidney and start answering questions about it located on pages 23-28 in your unit packet. And then, the best

part, we cut the kidneys in half to get a better view. We observed our kidneys and located where all of the important structers where such as the:

• Renal cortex
• Renal pelvis
• Renal pyramid
• Renal medulla
• Ureter

After we were all able to locate where those were on the kidney by ourselves Mrs. Stein came over and quizzed us just to make sure.

After we were done, we all made sure that we cleaned up our lab bench!

HOMEWORK:

• Finish UP 23-28
• Test on Friday
• Visit Mrs. Stein for a homework pass

THE NEXT SCRIBE IS..................... ASHLEY

Marvelous Monday!

4/11/11

Agenda:

-Take out nutrient lab and UP 19-20 with stamp sheet

-Post lab nutrient lab

-Begin excretion!!!!!

-Video

Hello everyone! Welcome back to school after a fantabulastic weekend! Hope you had fun.

First today, Mrs. Stein stamped our stamp sheets for the nutrient lab, and UP 19-20. You were supposed to get 2 cow stamps. If you didn't, then well then.....

Next, we discussed the nutrient lab. It wasn't the easiest lab, but as we went over the results, I found it easier to comprehend.

After that, we started.........

EXCRETION!!!!! 

Excretion- get rid of/ removal

The organs involved in the excretion are:

~skin, lungs, liver, kidneys

The kidneys help release urine, the lungs release carbon dioxide, and the skin releases sweat.

The parts of the kidney are:

-Nephron

~Bowman's Capsule

+Loop of Henle

Bladder, ureter, and urethra are also parts of the excretory system.

URINE/SWEAT:

-Water

-Salt

-Uric acid/urea

~Nitrogenous waste

How does the excretory system play a role in homeostasis?

-Removes LIQUID wastes

-Regulates pH level in the blood. (Removes certain ions from blood.)

-REGULATES WATER CONTENT OF BLOOD!!!!!!!!!!!!!!!!!!!!!!!

After that.....

We watched a video about a man and his daughter, and the man ran out of water. That wasn't the point of the video, but it was funny. The video started to explain the excretory system, and how big of an impact water loss has on the human body.

If you didn't get the homework....... here it is!!!!!

-Read over kidney dissection- UP 23-28

-Test..... FRIDAY!!!!

-Visit Mrs. Stein for a homework pass!

Get ready to dissect some sheep kidney :)

Ashley is the next scribe

Thurs & Fridays blog :D

Thursday

Homework:

Nutrient lab due Friday

Quiz Friday

Friday:

HW:

read text 30.4 w/up 19-20 due mon

hw pass by Tue

Sorry for not doing Thursday's blog but i am making it up by doing today and yesterdays!

today we finished the nutrient lab but if people didnt finish because of the lack of time its due on monday. we also took the digestive quiz in the beginning of class and thats it....

Oh yay, a late arraival ;D

OK, so here is the agenda and homework:
Agenda
1) Bring me (Mrs. Stein of course) your prelab.
2) Discuss nutrients/enzymes
3) Begin nutrient lab
HW
1) Enzyme chat with reading due tomorrow
2) Visit her!
3)Science contest sign up E.C.
4)Nutrient lab due Friday.

OK, now lets get on to business shall we...
The first thing we talked about was the milk that was somewhat "solidized" from the end of last class. This is where cheese comes from. The milk preforms a process to do so called "curdling" with an enzyme called "rennin".
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
So here's the deal with carbs:
There are 2 kinds of carbs: simple carbs and complex carbs.

Simple carbs- Are smaller and contain sugars. the sugar that they use is of course glucos, the sugar of the cells!

Complex carbs- Are overall larger, have more energy, and are starch. It also contains calories fro its high energy. And the starch is used to test with iodine.
*************************************************************************************
Proteins contain amino acids of course. And fat breaks down lipids to make glycerol+fatty acids.
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The next scribe is Nawon.
Goodbye now

LATE ARRIVAL WOOOOOOOO!

4/5/11

Agenda
-Hand in flow map
-Notes -> organs and digestion
-Introduce enzymes + Nutrient lab

Homework
-Nutrient Lab - Prelab - tomorrow
-Read 30.2 tomorrow
-Enzyme Reading / Chart - Thursday

We started off class by handing in our flow chart and picked up 5 papers which were the Enzyme Reading and chart and 3 diagrams. After we did our notes and we were given a chance at the end of class. Mrs. Stein also attempted to show us what the enzyme rennin does to milk, but was unable.

DIGESTION

-Breaks down large molecules into smaller molecules which can be used by cells
-Physical / Chemical digestion
-Alimentary canal is a one way tube which food passes through the body
-Accessory structures do not carry food, but aid in digestion

MOUTH

-Mechanical digestion (Teeth crushes food)
-Saliva moistens food and contains salivary amylase
-Starch into simpler sugars

ESOPHAGUS

-Muscular - connects pharynx and stomach
-Peristalsis
-Waves of muscle contraction
-Bolus enters the stomach through a sphincter

STOMACH

-Muscular sac lined with mucus
-Protection + lubrication -> Protects from burning the stomach
-Mechanical digestion
-Chemical digestion
-HCI kills bacteria, lower pH to activate pepsin
-Proteins break down
-Peptic ulcer - hole in stomach wall caused by bacteria

SMALL INTESTINE

-Duodenum - 1st part of the small intestine
-Enzymes and fluids here
-Carbohydrates, lipids, and proteins digested here
-Nutrients absorbed
-Lined with finger-like protections called villi
-Increases SURFACE AREA of absorption
-Water, cellulose, and indigestible remain

ACCESSORY STRUCTURES

-Liver produces bile which emulsifies (breaking a part for larger SURFACE AREA) fat
-Gallbladder stores bile
-Pancreas produces enzymes

LARGE INTESTINE

-Absorbs water from undigested material
-Bacteria synthesizes from vitamin K

The next scribe is..........
DRUMMMMMMMMMROLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL
Michael R

Welcome Back to Earth!

Agenda:

1: Welcome Back: General Class Business:

2: New Unit Review

3: Digestive System Freewrite Activity

4: Begin HW

Homework:

1: Flowmap for Section 30.3

2: EC: Science Contest

Bare-Bones Notes Dept.:

Path of food:

Hand-Mouth-Esophagus-Stomach-S/L Intestine-Anus

-Most animals have multi-organ tract

-Some animals share mouth and anus

-Liver secretes chemicals to aid digestion

-Stomach acid (HCl) has a pH close to that of battery acid.

-Digestion can take up to 18 hours

-Saliva is part of chemical digestion

Extra Credit Dept.:

Everything About Water Science Contest will be held on April 14, 2011. Teams of four students will compete in six events with a water theme. Teams will compete in five events during one period of the school day and one after school event. For more information, the events and contest rules, visit the science department homepage.

Link Dept.:

Science Department Homepage

Contest Rules

Misc. Business Dept.:

Next Scribe: Dean (Daniel) A