JUST SO YOU KNOW its like 80 degrees outside nbd, and the DIARY BAR IS OPEN! but anyway, in class on friday we took a quiz and then we finished our lab!
In the lab we tested various things for certain nutrients, such has simple sugars, carbohydrates, protein and fat. To test for the nutrients we had different ingredients that would show if it had the nutrient or not. Such as the carbohydrates, we put iodine solution and if it turned dark purple then it had starch in it.(which is a complex sugar).
*NOTICE*
i would have pictures but for some reason my phone won't upload them!! very sorry!
After we saw what the positive results were of each test, we then tested various foods for the different nutrients. we tested Carrots, Bread, Potato, Apple, Onion, Walnuts and Cheese for the nutrients. The results were:
Carrots:
positive for simple sugar and fats
Negative for starch and protein
Bread:
Positive for Starch, Simple sugar and Fats
negative for protein
Potato:
Positive for starch and fat
negative for simple sugar and proteins
Apple:
positive for simple sugar and fats
negative for starch and protein
Onion:
positive for simple sugar, protein, and fats
negative for starch
walnut:
positive for fats
negative for starch and proteins
Cheese:
positive for protein
negative for fats
HOMEWORK:
Read 30.4 and do up pages 19-20
sorry this was at the end of the weekend btw
NEXT SCRIBE IS...
Michelle!
Sunday, April 10, 2011
Thursday, April 7, 2011
Yes!!!! it's Thursday! (: 1 more day/ then weekend!!
In Class: So basically, all we did in class today was:
- continued to work on the Nutrient Lab
Check to make sure your answers are correct for the Enzyme Chart!
(answers will be given going from the "enzyme/fluid name" all the way to the "what results from its action" The words/answers are put in order according to the BLANK spots) (horizontally)
1. Salivary Glands. Starch.
2. Pepsin. Polypeptides
3. Liver. Fats. Smaller Lipids.
4. Pancreatic Amylase. Maltose
5. Stomach Protein. Smaller Polypeptides.
6. Lipase. Fatty acids/glycerol.
7. Duodenum. Glucose.
8. Sucrase. Sucrose.
9. Lactose. Glucose/galactose.
10. Peptidase. Protein.
We also did a little review for our quiz tomorrow. As Mrs. Stein said, "everything from this week is fair game." So be sure to look over all the readings that were assigned and your notes! in other words STUDY! Here are a few questions she asked us......
Q- What is the process of carbohydrate digestion? Where does it occur? What enzymes are involved? What do they get broken into?
A- Starches get digested in the mouth. Amylase breaks down starch then into maltose which is TWO sugars, and from that it turns into glucose, which is ONE sugar.
Q- What fluids are found in the stomach/their functions?
A- pepsin: breaks down proteins.
hydrochloric acid: kills bacteria/lowers ph so pepsin works.
Rennin: proteins that work on milk.
Q- What is lipid digestion? What do they get broken down into?
A- Break down into fatty acids/glycerol.
(breaking down is known as emulsification)
Look over diagrams!!!! Know parts and their functions.
Lastly, we worked on the nutrient lab.
Used 2 test tubes and mixed water with Benedict's solution in them and then put the tubes in boiling water. Both tubes were light blue before we put them into the water. After a few minutes we noticed a color change. One of the tubes went from being light blue to yellow then green then orange and then finally turned brick red!.
http://autumnmarcita.files.wordpress.com/2010/10/benedictstest-1.jpg
HOMEWORK:
-Study for quiz!
- Nutrient lab due tomorrow during class
next scribe is, Serena! (:
- get our Enzymes and Digestive Fluids Chart stamped
- went over the chart
- talked about different types of digestions and where they occur - also talked about different fluids and their functions- went over the chart
- continued to work on the Nutrient Lab
Check to make sure your answers are correct for the Enzyme Chart!
(answers will be given going from the "enzyme/fluid name" all the way to the "what results from its action" The words/answers are put in order according to the BLANK spots) (horizontally)
1. Salivary Glands. Starch.
2. Pepsin. Polypeptides
3. Liver. Fats. Smaller Lipids.
4. Pancreatic Amylase. Maltose
5. Stomach Protein. Smaller Polypeptides.
6. Lipase. Fatty acids/glycerol.
7. Duodenum. Glucose.
8. Sucrase. Sucrose.
9. Lactose. Glucose/galactose.
10. Peptidase. Protein.
We also did a little review for our quiz tomorrow. As Mrs. Stein said, "everything from this week is fair game." So be sure to look over all the readings that were assigned and your notes! in other words STUDY! Here are a few questions she asked us......
Q- What is the process of carbohydrate digestion? Where does it occur? What enzymes are involved? What do they get broken into?
A- Starches get digested in the mouth. Amylase breaks down starch then into maltose which is TWO sugars, and from that it turns into glucose, which is ONE sugar.
Q- What fluids are found in the stomach/their functions?
A- pepsin: breaks down proteins.
hydrochloric acid: kills bacteria/lowers ph so pepsin works.
Rennin: proteins that work on milk.
Q- What is lipid digestion? What do they get broken down into?
A- Break down into fatty acids/glycerol.
(breaking down is known as emulsification)
Look over diagrams!!!! Know parts and their functions.
Lastly, we worked on the nutrient lab.
Used 2 test tubes and mixed water with Benedict's solution in them and then put the tubes in boiling water. Both tubes were light blue before we put them into the water. After a few minutes we noticed a color change. One of the tubes went from being light blue to yellow then green then orange and then finally turned brick red!.
http://autumnmarcita.files.wordpress.com/2010/10/benedictstest-1.jpgHOMEWORK:
-Study for quiz!
- Nutrient lab due tomorrow during class
next scribe is, Serena! (:
The Week is Half Over!
Homework:-Enzyme chart with reading (also use section 33 in textbook)
-visit Mrs. Stein in her office for a homework pass!
-sign up for science contest (for extra credit)
-Nutrient lab due some time in class on Friday
First in class, we discussed nutrients and here's what we discussed...
I -testing for carbs-simple--SMALL, less energy
-complex--BIG, more energy (starch)
II -testing for protein---> amino acids
III -testing for fat (lipids)--->glyceol & fatty acids
IV - testing for food <UNKNOWN>
Nutrient Lab
Today, we got our new lab groups and STARTED the nutrient lab. We only did the starch part of the lab.
We had to put starchy water into a beaker and then we added iodine. If the test was positive, then the startchy water would turn blue-ish black...
here's what it looked like when we put the iodine in.. (the iodine started out being orange-ish brown)
When we stirred that up, the whole thing turned darker and black and dark blue.
Next Scribe is.....Yvette
-visit Mrs. Stein in her office for a homework pass!
-sign up for science contest (for extra credit)
-Nutrient lab due some time in class on Friday
First in class, we discussed nutrients and here's what we discussed...
I -testing for carbs-simple--SMALL, less energy
-complex--BIG, more energy (starch)
II -testing for protein---> amino acids
III -testing for fat (lipids)--->glyceol & fatty acids
IV - testing for food <UNKNOWN>
Nutrient Lab
Today, we got our new lab groups and STARTED the nutrient lab. We only did the starch part of the lab.
We had to put starchy water into a beaker and then we added iodine. If the test was positive, then the startchy water would turn blue-ish black...
here's what it looked like when we put the iodine in.. (the iodine started out being orange-ish brown)
When we stirred that up, the whole thing turned darker and black and dark blue.
Next Scribe is.....Yvette
Wednesday, April 6, 2011
Sphincter Time!!!!!!!!!!!!!!!!!!!!!!
Sup Everybody
In class we took notes here are tha main ideas. The food goes through the one way tube called the ailementary canal. It starts with the mouth where mechanical digestion (teeth) and chemical digestion (Saliva, contains enzyme Salivary Amylase) break food down. It then goes to the esophagus, which connect the pharynx (throat) to the stomach. It enters stomach past a Sphincter, w
hich closes to keep food and stomach acid from going back into esophagus. The stomach is a muscular sace lined with mucus that expands and contracts to perform mechanical digestion. It also uses chemical digestion by activating pepsin that breaks down proteins. Nex is the small intestine beginning with the duodenum, Here carbs, lipids and everything else is digested here and nutrients are absorbed. The SI is lined with Villi which increase surface area. In the large intestine water and indigestible junk is absorbed, bacteria absorbs the vitamin K in the food and you are keft with FECES. The other structures involved that arent places the food travels are the liver which makes bile qhich emulsifies fat, gall bladder which stores bile, and pancreas that makes enzymes.
hich closes to keep food and stomach acid from going back into esophagus. The stomach is a muscular sace lined with mucus that expands and contracts to perform mechanical digestion. It also uses chemical digestion by activating pepsin that breaks down proteins. Nex is the small intestine beginning with the duodenum, Here carbs, lipids and everything else is digested here and nutrients are absorbed. The SI is lined with Villi which increase surface area. In the large intestine water and indigestible junk is absorbed, bacteria absorbs the vitamin K in the food and you are keft with FECES. The other structures involved that arent places the food travels are the liver which makes bile qhich emulsifies fat, gall bladder which stores bile, and pancreas that makes enzymes.HOMEWORK: Pre-lab about nutrients and read 30.2.
An Airhead for your troubles
I know you want it
The Next Scribe is Melissa
Tuesday, April 5, 2011
Happy Monday
when we got to class we settled after picking up a note card and new unit packet then mrs stein passed back our grade reports. then we talked about the science contest! if you participate you can get extra credit but don't ask how much because mrs. stein hasn't decided. pretty much its a contest on how well you answer a few questions relating to science on april 14th. only one period that you sign up for to go to the advent is when you will be competing. you create a team of four people and freshman are more valuable because we haven't taken as many science classes as upperclassmen (yay us!) if you want more details read the website: https://webmail.glenbrook225.org/owa/redir.aspx?C=caf88c51729148829a2f662a0033e31e&URL=http%3a%2f%2fwww.glenbrook225.org%2fsouth%2fdepartments%2fscience%2fPages%2fhome.aspx. after we talked about getting new seats when people return from spring break. also we filled out a post card about how comfortable we felt with dissection and if we wanted to do a lot of dissecting or not and who we worked well with. these will help mrs. stein determine new lab groups. new we talked about what we already know about our new unit!
- teeth and saliva break down food
- layer of mucus protects stomach from acid which would destroy the stomach
- small intestine is 30ft?
- large intestine is 10ft?
- our bodies take all nutrients from food and give it to the blood then the blood transports the nutrients (this happened in the small intestine)
- waste is released
- nutrients:
1. protein 2. fat 3.carbohydrates 4. water 5. vitamin 6. minerals
goals of digestion:
breaking stuff down, absorbing nutrients and releasing waste
HOMEWORK:
30.3 with flow map (starting with mouth ending with anus)
see mrs. stein to talk about the last quarter for a homework pass by tuesday
extra credit if you enter the science contest and if you place top 4 you get even more extra credit!
Tuesday, March 22, 2011
Pictures! Pictures! Pictures!
hey hey hey!!
I found dome really cool pictures of plants at my house and one of them is actually a good example of phototropism! ( at first me and my sister thought that my cat broke it but then we were realized that the roots were still deep in the soil)
I can't name most of them except one of them is a jasmine also known as a raat ki rani which means queen of the night. it's called that because it blooms at night! it's most common name is in hindi because it's prominent is south asia and it's berries are poisonous!!!!
I found dome really cool pictures of plants at my house and one of them is actually a good example of phototropism! ( at first me and my sister thought that my cat broke it but then we were realized that the roots were still deep in the soil)
I can't name most of them except one of them is a jasmine also known as a raat ki rani which means queen of the night. it's called that because it blooms at night! it's most common name is in hindi because it's prominent is south asia and it's berries are poisonous!!!!
I'm not sure what plant this is
same with this one but it's pretty awesome
this is the example of phototropism! notice how since the blinds are semi up its growing up and to the side to get light energy. you can't see the second window too well but the start of where the blinds finish is just cut off.
Jasmine or "raat ki rani" i haven't seen this one bloom in a really long time but it usually blooms in the summer and it makes the whole room smell amazing!!!
this is what the flower looks like. I honestly was not aware of the words at the bottom but they made me lol just a little bit :)
Spring Break Soon!!!!
Homework:
-U.P. 45-46 due tomorrow
-read textbook pages pg. 704-705 only
presentations tomorrow--make sure you get your project handed in by 8AM tomorrow!
wierd plant quiz-Thursday
PLANT TEXT FRIDAY!!
Today we started class by getting our Plant of the Day--->String of Pearls- it looked like peas!
We also talked about how for the presentations you should be animated, project your voice, and engage the class!!! and you will get a good presentation grade.
NOTES:
Pollination:
*pollen transfers from anther to stigma
--self-pollination: pollen fertilizes ovule of same plant
--cross-pollination:pollen fertilizes ovules of another plant
*Increase genetic variation
Fertilization
1. Pollen lands on stigma
2.Pollen tube grows in the style
3.Sperm and egg form a zygote
Double Fertilization
*2 sperm enter the ovary
*1st sperm fertilizes the egg; results in a zygote (2N)
*2nd sperm fertilizes in the polar nuclei forms endosperm (3N)
Cross Pollination Methods
*Wind Pollination
-Inefficient, high pollen production
-Flower are smalls and not not colorful
*Vector Pollination
-more efficient
-Plants attract pollinators by...
-color
-fragrance
-nectar
Coevolution
*Two species evolve in response to changes in one another
Seed Disperal
*Wind
-Maple trees, dandelions
*Barbs stick to animal fur
-Buraock plant
*Animals eat and excrete seeds
Next Scribe is.......Sabina!!!!!!!!!!!!!!!!
Homework:
-U.P. 45-46 due tomorrow
-read textbook pages pg. 704-705 only
presentations tomorrow--make sure you get your project handed in by 8AM tomorrow!
wierd plant quiz-Thursday
PLANT TEXT FRIDAY!!
Today we started class by getting our Plant of the Day--->String of Pearls- it looked like peas!
We also talked about how for the presentations you should be animated, project your voice, and engage the class!!! and you will get a good presentation grade.
NOTES:
Pollination:
*pollen transfers from anther to stigma
--self-pollination: pollen fertilizes ovule of same plant
--cross-pollination:pollen fertilizes ovules of another plant
*Increase genetic variation
Fertilization
1. Pollen lands on stigma
2.Pollen tube grows in the style
3.Sperm and egg form a zygote
Double Fertilization
*2 sperm enter the ovary
*1st sperm fertilizes the egg; results in a zygote (2N)
*2nd sperm fertilizes in the polar nuclei forms endosperm (3N)
Cross Pollination Methods
*Wind Pollination
-Inefficient, high pollen production
-Flower are smalls and not not colorful
*Vector Pollination
-more efficient
-Plants attract pollinators by...
-color
-fragrance
-nectar
Coevolution
*Two species evolve in response to changes in one another
Seed Disperal
*Wind
-Maple trees, dandelions
*Barbs stick to animal fur
-Buraock plant
*Animals eat and excrete seeds
Next Scribe is.......Sabina!!!!!!!!!!!!!!!!
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