Thursday, April 30, 2015
Ch 11 test - good luck!
Chapter 11 test today!
-40 questions/80 points
-Same format: true/false, multiple choice, interpreting diagrams
-Chapter 11 Notebook due as well
-No tutorial today - assembly after 1st
Tuesday, April 28, 2015
Cover 11.3/Review for Ch 11 test
-Go Blazers!
-Congrats on your good behavior with Ms. Driscoll :) Thanks!
-Show me your flashcards: 1 point per card up to 11pt
Notetaking in interactive notebooks...(short section)
-11.3 Multicellular Life Cycles
Learning Objective: I can describe diploid and haploid life cycles and explain 'alternation of generations'
Chapter 11 JEOPARDY to study for test on Thursday!
Same format, around 25 questions
Notebooks due as well - don't forget!
-Congrats on your good behavior with Ms. Driscoll :) Thanks!
-Show me your flashcards: 1 point per card up to 11pt
Notetaking in interactive notebooks...(short section)
-11.3 Multicellular Life Cycles
Learning Objective: I can describe diploid and haploid life cycles and explain 'alternation of generations'
Chapter 11 JEOPARDY to study for test on Thursday!
Same format, around 25 questions
Notebooks due as well - don't forget!
Monday, April 27, 2015
Thursday, April 23, 2015
Finish flashcards, review 11.2 Meiosis packet
-Including today, we have 21 more A days left this year! (crazy)
-Finish up flashcards, you can also write the main action that's happening in each phase on the back of each card; show me for credit, then they're yours to keep for studying
-Review answers to 11.2 Meiosis packet; show me for credit, glue into interactive notebook
Next week...
Monday: Make vocabulary flashcards in class
Tuesday: Review for chapter test with Jeopardy/test?
Thursday: Test, if no time Tuesday
-Finish up flashcards, you can also write the main action that's happening in each phase on the back of each card; show me for credit, then they're yours to keep for studying
-Review answers to 11.2 Meiosis packet; show me for credit, glue into interactive notebook
Next week...
Monday: Make vocabulary flashcards in class
Tuesday: Review for chapter test with Jeopardy/test?
Thursday: Test, if no time Tuesday
Tuesday, April 21, 2015
Finish 11.2 Meiosis; 11.2 Meiosis Packet & Flashcards
-Finish watching SciSchow video
-Here's a good (quick) video to help illustrate the difference between MITOSIS and MEIOSIS
-Instead of lecture notes I have a great packet for you:
11.2 Meiosis Packet will be due by Thursday 4/23 at the latest for 20 points. Annotate the text for full credit.
-Then, when you're done with the packet we'll do something fun:
Mitosis/Meiosis Phase Flashcards (15 pts). I'm so nice that I already found drawings of the phases for you!
(minus two phases that you'll draw)
Make them colorful and fun so you'll want to study with them...they are your friends.
Use your 11.2 Meiosis Packet or your textbook for diagrams.
FLASHCARDS DIRECTIONS:
1. Label the top four flashcards with the correct mitosis phase.
2. Label the bottom six flashcards with the correct meiosis phase.
3. There are two blank flashcards: one is Prophase II & the other is Metaphase II. Your job is to draw & label these two phases.
4. Now cut out all twelve labeled & drawn flashcards.
5. Put them in the correct order and study them.
6. Now mix them up and try to put them in the correct order. Study with a lab partner/neighbor.
-Here's a good (quick) video to help illustrate the difference between MITOSIS and MEIOSIS
-Instead of lecture notes I have a great packet for you:
11.2 Meiosis Packet will be due by Thursday 4/23 at the latest for 20 points. Annotate the text for full credit.
-Then, when you're done with the packet we'll do something fun:
Mitosis/Meiosis Phase Flashcards (15 pts). I'm so nice that I already found drawings of the phases for you!
(minus two phases that you'll draw)
Make them colorful and fun so you'll want to study with them...they are your friends.
Use your 11.2 Meiosis Packet or your textbook for diagrams.
FLASHCARDS DIRECTIONS:
1. Label the top four flashcards with the correct mitosis phase.
2. Label the bottom six flashcards with the correct meiosis phase.
3. There are two blank flashcards: one is Prophase II & the other is Metaphase II. Your job is to draw & label these two phases.
4. Now cut out all twelve labeled & drawn flashcards.
5. Put them in the correct order and study them.
6. Now mix them up and try to put them in the correct order. Study with a lab partner/neighbor.
Monday, April 20, 2015
Review 11.1 Reproduction; start 11.2 Meiosis
-Happy Monday! Good weekend?
-Review answers to 11.1 Active Reading (glue into notebooks; I will come around and check for completion/grade on Monday AM)
-11.2 Meiosis
Learning Objective: I can explain the process of meiosis
Big Ideas...
-Meiosis is used to create sperm and egg cells
-Meiosis has TWO divisions
-Result: four haploid gametes
-The eventual purpose of the gametes will be to find other gametes to combine with. When they do, a new organism will develop.
Watch SciSchow video
*Make 'Stages of Meiosis' flashcards
-Use diagram to help you understand stages
-You need to add prophase II and metaphase II to the blank cards
-On the back of the cards write a short description of the stage
-Review answers to 11.1 Active Reading (glue into notebooks; I will come around and check for completion/grade on Monday AM)
-11.2 Meiosis
Learning Objective: I can explain the process of meiosis
Big Ideas...
-Meiosis is used to create sperm and egg cells
-Meiosis has TWO divisions
-Result: four haploid gametes
-The eventual purpose of the gametes will be to find other gametes to combine with. When they do, a new organism will develop.
Watch SciSchow video
*Make 'Stages of Meiosis' flashcards
-Use diagram to help you understand stages
-You need to add prophase II and metaphase II to the blank cards
-On the back of the cards write a short description of the stage
Thursday, April 16, 2015
Finish 11.1 Reproduction
Honors presentations during lunch today in Ms. Ghodsi's room ! :)
I will be in room 237 for tutorial today until 3pm
We want to know!
Do starfish grow new bodies from separated limbs?
Beyond their distinctive shape, sea stars are famous for their ability to regenerate limbs, and in some cases, entire bodies. They accomplish this by housing most or all of their vital organs in their arms. Some require the central body to be intact to regenerate, but a few species can grow an entirely new sea star just from a portion of a severed limb. (National Geographic Society)
How do you grow potatoes? Eyes? Seeds?
Geneticists at 23andMe in California asked about 25,000 people whether they like cilantro or think it smells soapy. When they searched the people's DNA for regions that correlate with a distaste for the herb, a single spot jumped out. And, it sits right next to a cluster of odor-detecting genes, including one that is known to specifically recognize the soapy aromas in cilantro's bouquet. (npr.org)
Why does asparagus make urine small unpleasant?
Even Benjamin Franklin took note, stating in a 1781 letter to the Royal Academy of Brussels that “A few Stems of Asparagus eaten, shall give our Urine a disagreable Odour” (he was trying to convince the academy to “To discover some Drug…that shall render the natural Discharges of Wind from our Bodies, not only inoffensive, but agreeable as Perfumes”—a goal that, alas, modern science has still not achieved). Scientists tell us that the asparagus-urine link all comes down to one chemical: asparagusic acid. Asparagusic acid, as the name implies, is (to our knowledge) only found in asparagus. When our bodies digest the vegetable, they break down this chemical into a group of related sulfur-containing compounds. As with many other substances that include sulfur—such as garlic, skunk spray and odorized natural gas—these sulfur-containing molecules convey a powerful, typically unpleasant scent. Of course, the whole asparagus-urine scent issue is complicated by an entire separate issue: Some people simply don’t smell anything different when they urinate after they eat asparagus. Scientists have long been divided into two camps in explaining this issue. Some believe that, for physiological reasons, these people (which constitute anywhere from 20 to 40 percent of the population) don’t produce the aroma in their urine when they digest asparagus, while others think that they produce the exact same scent, but somehow lack the ability to smell it.The most recent study, from 2010, found that differences existed between individuals in both the production and detection of the scent.It’s still unclear why some people don’t produce the smell, but we do seem to have a clear explanation of why some people don’t perceive it.This peculiarity—which you might consider useful if you eat asparagus frequently—appears to stem from a single genetic mutation, a switched base-pair among a cluster of 50 different genes that code for olfactory receptors.
(smithsonianmag.org)
...interesting!
If you missed class Tuesday 4/14: read 11.1 in textbook and take notes or ask a neighbor to borrow their notes
(11.1 Learning Objectives: I can differentiate between asexual and sexual reproduction & discuss the importance of chromosome number to organisms)
11.1 Finish presentation with note taking in interactive notebooks
11.1 Active Reading - 10pts due today (3pts for annotating text & one point per question otherwise); work independently or w/labs
BRAIN BREAK (LITERALLY)
I will be in room 237 for tutorial today until 3pm
We want to know!
Do starfish grow new bodies from separated limbs?
Beyond their distinctive shape, sea stars are famous for their ability to regenerate limbs, and in some cases, entire bodies. They accomplish this by housing most or all of their vital organs in their arms. Some require the central body to be intact to regenerate, but a few species can grow an entirely new sea star just from a portion of a severed limb. (National Geographic Society)
How do you grow potatoes? Eyes? Seeds?
- Plant seed potatoes (pieces of whole potato or a small whole potato, with at least 2 eyes per piece) 0-2 weeks after last spring frost.
- If you are cutting up potato pieces for planting, do so a 1-2 days ahead of time. This will give them the chance to form a protective layer, both for moisture retention and rot resistance.
- Plant seed potatoes one foot apart in a 4-inch deep trench, eye side up.
- See our video on how to grow potatoes in a trash can, the easiest ever container garden!
- (The Old Farmer's Almanac)
Geneticists at 23andMe in California asked about 25,000 people whether they like cilantro or think it smells soapy. When they searched the people's DNA for regions that correlate with a distaste for the herb, a single spot jumped out. And, it sits right next to a cluster of odor-detecting genes, including one that is known to specifically recognize the soapy aromas in cilantro's bouquet. (npr.org)
Why does asparagus make urine small unpleasant?
Even Benjamin Franklin took note, stating in a 1781 letter to the Royal Academy of Brussels that “A few Stems of Asparagus eaten, shall give our Urine a disagreable Odour” (he was trying to convince the academy to “To discover some Drug…that shall render the natural Discharges of Wind from our Bodies, not only inoffensive, but agreeable as Perfumes”—a goal that, alas, modern science has still not achieved). Scientists tell us that the asparagus-urine link all comes down to one chemical: asparagusic acid. Asparagusic acid, as the name implies, is (to our knowledge) only found in asparagus. When our bodies digest the vegetable, they break down this chemical into a group of related sulfur-containing compounds. As with many other substances that include sulfur—such as garlic, skunk spray and odorized natural gas—these sulfur-containing molecules convey a powerful, typically unpleasant scent. Of course, the whole asparagus-urine scent issue is complicated by an entire separate issue: Some people simply don’t smell anything different when they urinate after they eat asparagus. Scientists have long been divided into two camps in explaining this issue. Some believe that, for physiological reasons, these people (which constitute anywhere from 20 to 40 percent of the population) don’t produce the aroma in their urine when they digest asparagus, while others think that they produce the exact same scent, but somehow lack the ability to smell it.The most recent study, from 2010, found that differences existed between individuals in both the production and detection of the scent.It’s still unclear why some people don’t produce the smell, but we do seem to have a clear explanation of why some people don’t perceive it.This peculiarity—which you might consider useful if you eat asparagus frequently—appears to stem from a single genetic mutation, a switched base-pair among a cluster of 50 different genes that code for olfactory receptors.
(smithsonianmag.org)
...interesting!
If you missed class Tuesday 4/14: read 11.1 in textbook and take notes or ask a neighbor to borrow their notes
(11.1 Learning Objectives: I can differentiate between asexual and sexual reproduction & discuss the importance of chromosome number to organisms)
11.1 Finish presentation with note taking in interactive notebooks
11.1 Active Reading - 10pts due today (3pts for annotating text & one point per question otherwise); work independently or w/labs
BRAIN BREAK (LITERALLY)
Tuesday, April 14, 2015
Begin Chapter 11 Meiosis & Sexual Reproduction
Begin Unit 4 on Heredity!
*THINK:What are some different ways that organisms reproduce (make offspring)?
Watch Tidepool Tim's video clip of starfish regeneration
11.1 Learning Objectives: I can differentiate between asexual and sexual reproduction & discuss the importance of chromosome number to organisms.
11.1 Presentation with note taking in interactive notebooks
Komodo Dragons can reproduce through parthenogenesis!(video)
Reminder: Honors presentations during lunch this week! :)
BRAIN BREAK (LITERALLY)
*THINK:What are some different ways that organisms reproduce (make offspring)?
Watch Tidepool Tim's video clip of starfish regeneration
Section 1 - Reproduction
Section 2 - Meiosis
Section 3 - Multicellular Life Cycles
11.1 Learning Objectives: I can differentiate between asexual and sexual reproduction & discuss the importance of chromosome number to organisms.
11.1 Presentation with note taking in interactive notebooks
Komodo Dragons can reproduce through parthenogenesis!(video)
Reminder: Honors presentations during lunch this week! :)
BRAIN BREAK (LITERALLY)
Monday, April 13, 2015
Wrap up Q3
-Pass back Ch. 10 tests
(highest score 34/35=97% period 1; 33/35=94% period 2)
-Who's still missing tests/assignments? LAST CALL FOR QUARTER 3 WORK BY END OF LUNCH TODAY!
-Work on Chapter 10 Concept Map for 10pts extra credit
-Tomorrow: Begin Unit 4 - Chapter 11 Meiosis & Sexual Reproduction
(highest score 34/35=97% period 1; 33/35=94% period 2)
-Who's still missing tests/assignments? LAST CALL FOR QUARTER 3 WORK BY END OF LUNCH TODAY!
-Work on Chapter 10 Concept Map for 10pts extra credit
-Tomorrow: Begin Unit 4 - Chapter 11 Meiosis & Sexual Reproduction
Friday, April 10, 2015
Thursday, April 9, 2015
Study & Chapter 10 Test
-10 PTS EXTRA CREDIT: SHOW ME YOUR CHAPTER 10 VOCABULARY FLASH CARDS!
-Turn in any/all missing work by the end of the day today (mailbox is OK - Ferro/Sansom)
-Turn in notebook for grading (up to 50 pts)
-Chapter 10 Test: 35 questions
5 true/false
16 fill in the blank
4 interpreting diagram
5 multiple choice
5 labeling diagrams
What to know:
-Why do multicellular organisms use cell division?
-How many chromosomes are in each human cell?
-Parts/structure of a chromosome
-What is a gene?
-Four phases of mitosis, what each one looks like, what's occurring in each phase
-What happens during interphase?
-What is cytokinesis?
-Different between animal vs. plant during cytokinesis (plant has one structure, animals have another; from lab diagram & mitosis video)
-Why do eukaryotic cells use checkpoints? What happens if cells grow uncontrolled?
-Be able to label an onion root tip cell undergoing interphase or mitosis
GOOD LUCK! NO SCHOOL TOMORROW - HAVE A GOOD LONG WEEKEND! :)
-Turn in any/all missing work by the end of the day today (mailbox is OK - Ferro/Sansom)
-Turn in notebook for grading (up to 50 pts)
-Chapter 10 Test: 35 questions
5 true/false
16 fill in the blank
4 interpreting diagram
5 multiple choice
5 labeling diagrams
What to know:
-Why do multicellular organisms use cell division?
-How many chromosomes are in each human cell?
-Parts/structure of a chromosome
-What is a gene?
-Four phases of mitosis, what each one looks like, what's occurring in each phase
-What happens during interphase?
-What is cytokinesis?
-Different between animal vs. plant during cytokinesis (plant has one structure, animals have another; from lab diagram & mitosis video)
-Why do eukaryotic cells use checkpoints? What happens if cells grow uncontrolled?
-Be able to label an onion root tip cell undergoing interphase or mitosis
GOOD LUCK! NO SCHOOL TOMORROW - HAVE A GOOD LONG WEEKEND! :)
Tuesday, April 7, 2015
Finish 10.2 Mitosis; Begin 10.3 Regulation
-Finish 10.2: Mitosis (watch video)
Record/draw Cell Cycle Stages in interactive notebooks:
(Right hand side) 1. Interphase - cell is not yet dividing, but growing and preparing to divide (building more organelles, copying DNA)
2. Mitosis: dividing cell's nucleus into two daughter nuclei
a. Prophase - chromosome condense, nuclear membrane breaks down
b. Metaphase - condensed chromosomes line up along cell's equator
c. Anaphase - chromatids move toward opposite poles; each pole now has a full set of chromosomes
d. Telophase - nuclear envelope forms around the chromosomes at each pole of the cell
3. Cytokinesis - cell is divided into two daughter cells of equal size; cell in pinched in half by a belt of protein threads
*the end result of mitosis and cytokinesis is two genetically identical cells in place of the original cell
Processing drawing: (left hand side)
10.3 Regulation of Cell Growth & Division: Your body grows when more cells are added to the tissues and organs that make up the body. To stay healthy, cells continue to divide as needed to replace or renew tissues. How is the cell cycle regulated?
Controls
-Cell growth and division depend on protein signals and environmental signals.
Checkpoints
-Feedback signals at key checkpoints in the cell cycle can delay or trigger the next phase of the cell cycle. During the cell cycle, a cell undergoes an inspection process to ensure that the cell is ready for the next phase in the cell cycle.
Cancer
-Damage to a cell's DNA can cause a cell to respond improperly to signals and checkpoints, resulting in an uncontrolled cell cycle.
-Uncontrolled cell growth and division can result in masses of cells that invade and destroy healthy tissues.
-Cancer is a group of severe and sometimes fatal diseases that are caused by uncontrolled cell growth.
-Each year globally, about 14 million people learn they have cancer, and 8 million people die from the disease. Research suggests that one-third of cancer deaths can be prevented, but sometimes services and technologies are not widely available, especially in low and middle-income countries.
-This year about 564,800 Americans are expected to die of cancer
-A defective cell divides and produces more defective cells, and can eventually form a mass called a tumor. A benign tumor does not spread to other parts of the body and can often be removed by surgery. A malignant tumor invades and destroys nearby healthy tissues and organs.
-Cancer can be treated by using drugs, chemotherapy, surgery, or radiation therapy.
-To prevent cancer: don't use tobacco, eat a healthy diet, maintain healthy weight & be physically active, protect yourself from the sun, get immunized, avoid risky behaviors, & get regular medical care.
Watch PBS - Cancer: The Emperor of All Maladies Intro
Record/draw Cell Cycle Stages in interactive notebooks:
(Right hand side) 1. Interphase - cell is not yet dividing, but growing and preparing to divide (building more organelles, copying DNA)
2. Mitosis: dividing cell's nucleus into two daughter nuclei
a. Prophase - chromosome condense, nuclear membrane breaks down
b. Metaphase - condensed chromosomes line up along cell's equator
c. Anaphase - chromatids move toward opposite poles; each pole now has a full set of chromosomes
d. Telophase - nuclear envelope forms around the chromosomes at each pole of the cell
3. Cytokinesis - cell is divided into two daughter cells of equal size; cell in pinched in half by a belt of protein threads
*the end result of mitosis and cytokinesis is two genetically identical cells in place of the original cell
Processing drawing: (left hand side)
10.3 Regulation of Cell Growth & Division: Your body grows when more cells are added to the tissues and organs that make up the body. To stay healthy, cells continue to divide as needed to replace or renew tissues. How is the cell cycle regulated?
Controls
-Cell growth and division depend on protein signals and environmental signals.
Checkpoints
-Feedback signals at key checkpoints in the cell cycle can delay or trigger the next phase of the cell cycle. During the cell cycle, a cell undergoes an inspection process to ensure that the cell is ready for the next phase in the cell cycle.
Cancer
-Damage to a cell's DNA can cause a cell to respond improperly to signals and checkpoints, resulting in an uncontrolled cell cycle.
-Uncontrolled cell growth and division can result in masses of cells that invade and destroy healthy tissues.
-Cancer is a group of severe and sometimes fatal diseases that are caused by uncontrolled cell growth.
-Each year globally, about 14 million people learn they have cancer, and 8 million people die from the disease. Research suggests that one-third of cancer deaths can be prevented, but sometimes services and technologies are not widely available, especially in low and middle-income countries.
-This year about 564,800 Americans are expected to die of cancer
-A defective cell divides and produces more defective cells, and can eventually form a mass called a tumor. A benign tumor does not spread to other parts of the body and can often be removed by surgery. A malignant tumor invades and destroys nearby healthy tissues and organs.
-Cancer can be treated by using drugs, chemotherapy, surgery, or radiation therapy.
-To prevent cancer: don't use tobacco, eat a healthy diet, maintain healthy weight & be physically active, protect yourself from the sun, get immunized, avoid risky behaviors, & get regular medical care.
Watch PBS - Cancer: The Emperor of All Maladies Intro
Monday, April 6, 2015
Finish Mitosis Lab; onion root tip microscope photo here!; study & extra credit info here!!
-Happy Monday!
-If I call your name you still need to show me a completed '10.1 Reading Worksheet' for 35 points...
-REMINDER: All work due by this Thursday, April 9th! :)
-Honors students: show me your project plan by 4/9. You will present your project during lunch on 4/14 or 4/16.
-Photo of onion root tip cells undergoing interphase or mitosis here
-Work with lab partners to finish Mitosis Lab (due 4/9)
-Record your Mitotic Index on the class data sheet
*Points of clarification on Mitosis Lab:
-The total number of cells you count should be around 50, as indicated on page 1 of your lab packet under procedure step 3.
-Cells with a only a darker, round nucleus visible are in INTERPHASE
-Cells showing various versions of unwound, separated strings of chromosomes are in MITOSIS
(refer to the photos at the bottom of page 1 or the middle of page 2 of lab packet for clarification if you have a hard time differentiating the phases of the cells)
-(From page 2) "The meristematic region in the root tip is the actively growing region and thus the mitotic index is high" compared to other regions of the plant
-Read page 4 'Mitosis & the cell cycle' and go over flow chart
together (used to understand the amount of time a cell spends in interphase versus mitosis)
-Why do you think you saw most cells in interphase???
-Turn in lab packet for 30 points before you leave
-Tomorrow: finish 10.2 & do 10.3 Regulation of Cell Growth & Division
CHAPTER 10 STUDY MATERIALS: 10.1 quiz & answer key; 10.2 quiz & answer key
10 PTS EXTRA CREDIT: MAKE CHAPTER 10 VOCABULARY FLASH CARDS!
Thursday, April 2, 2015
Begin 10.2 Mitosis & do Lab
-Finish reviewing 10.1 Reading Worksheet & put in Synergy
-Begin 'Cell Division in Onion Root Tip Cells' Lab
Work in lab groups
Handle microscopes and slides with caution
Clean up lab area when finished
Complete 'Data Table' and 'Analyze & Conclude' sections
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