This is the software which I used to create mind maps of the year 12 Biology Achievement standards. It is a free download and quite simple to use.
Main Page - FreeMind: "FreeMind - free mind mapping software"
'via Blog this'
Tuesday, November 20, 2012
Monday, November 5, 2012
Friday, November 2, 2012
Study class reminder
Dear Students
Just a reminder that on Sunday 4 November starting at 1.00pm in room B8 Mrs Rippon will be holding a study class focussing upon the gene expression topic. You are welcome to bring some food for a shared food break during the study class.
All year 13 Biology students are welcome.
Regards
Mr Edwards
Thursday, November 1, 2012
Regulating Genes and Evolution INTERACTIVE
Click on the following link to observe how mutations to different areas of DNA can impact the development of organisms.
Rates of evolution in Bacteria INTERACTIVE SITE
Click on the following link to explore mutations and co-evolution between microbes and the organisms they inhabit.
Coral reef INTERACTIVE SITE
Click on the following link to explore connections between species on the reef and with links to survival and evolution .
Tuesday, October 30, 2012
Biology Study classes
Dear Students
This Wednesday 31 Oct after school in room B8 Mrs Rippon will hold a Scholarship biology study class.
On Sunday 4 Nov from 1.00pm in room B8 Mrs Rippon will host the second part of the gene expression topic. Feel free to bring food for a shared food break during this study class.
All Biology students are welcome to attend these study classes.
Regards
Mr Edwards
Saturday, October 27, 2012
Wednesday, October 24, 2012
Biology Study Classes
Dear Students
Here are some times for study classes in the next week or so.
Wednesday 23 October Room B12 after school Scholarship
Saturday 26 October Room B12 starting 10.30am Yr 13 Biology
Sunday 27 October Room B8 starting 1.00pm Yr 13 Biology
Regards
Mr Edwards
Sunday, October 21, 2012
Study class Monday 11 am room B8
Dear Students
Mrs Rippon will be holding a study class for year 13 Biology on Monday at 11am in room B8. All Biology students are welcome.
Regards
Mr Edwards
Sunday, October 14, 2012
Fwd:bozemanbiology just uploaded a video
---------- Forwarded message ----------
From: "YouTube" <noreply@youtube.com>
Date: Oct 14, 2012 7:09 PM
Subject: bozemanbiology just uploaded a video
To: "Richard Edwards" <richardedw@gmail.com>
From: "YouTube" <noreply@youtube.com>
Date: Oct 14, 2012 7:09 PM
Subject: bozemanbiology just uploaded a video
To: "Richard Edwards" <richardedw@gmail.com>
|
Wednesday, October 10, 2012
Biology Study Class Friday
Dear Students
Room B12 at 1.00 pm on Friday 12 October. All year 13 Biology students welcome.
regards
Mr Edwards
Tuesday, October 9, 2012
Importance of transcription factors (Gene control)
The following was taken from an Evolution blog:
British and Japanese scientists share Nobel Prize for stem cell work
British and Japanese scientists share Nobel Prize for stem cell work
John Gurdon from the UK and Shinya Yamanaka from Japan were awarded the prize for changing adult cells into stem cells, which can become any other type of cell in the body.
The discoveries are placed almost 40 years apart. In 1962, John Gurdon showed that the genetic information inside a cell taken from the intestines of a frog contained all the information need to create a whole new frog. He took the genetic information and placed it inside a frog egg. The resulting clone developed into a normal tadpole. The technique would eventually give rise to Dolly the sheep, the first cloned mammal. (Source 1)
But how did the egg cell body accomplish this reprogramming feat? The answer had to wait 44 years, while molecular biologists gained a more intimate understanding of genes and the agents that control them.
Working with mice, Dr. Yamanaka discovered in 2006 that the reprogramming is accomplished by just four specific gene control agents in the egg. The agents, known to biologists as transcription factors, are proteins made by master genes to regulate other genes. By injecting the four agents into an adult cell, Dr. Yamanaka showed that he could walk the cell back to its primitive, or stem cell, form.
Stem cells generated by this method, known as induced pluripotent cells, or iPS cells, could then be made to mature into any type of adult cell in the body, a finding with obvious potential for medical benefits.
Many biologists hope that Dr. Yamanaka’s technique will be the gateway toward generating replacement tissues from a patient’s own cells for use against a wide variety of degenerative diseases. (from Source 2)
Incidentally, John Gurdon's report card contained the following comment from his high school biology science teacher (he still has that report card with him):
“I believe Gurdon has ideas about becoming a scientist; on his present showing this is quite ridiculous. If he can’t learn simple biological facts he would have no chance of doing the work of a specialist, and it would be a sheer waste of time, both on his part and of those who would have to teach him.”
Source:
1) http://www.bbc.co.uk/news/ health-19869673
2) http://www.nytimes.com/2012/ 10/09/health/research/ cloning-and-stem-cell-discoveri es-earn-nobel-prize-in-medicin e.html?_r=0
3)http://www.dailymail.co.uk/ news/article-2214605/ Brit-Japanese-scientists-win-No bel-Prize-groundbreaking-skin- cell-discovery-help-cure-disea ses.html
Image credit: www.nytimes.com
But how did the egg cell body accomplish this reprogramming feat? The answer had to wait 44 years, while molecular biologists gained a more intimate understanding of genes and the agents that control them.
Working with mice, Dr. Yamanaka discovered in 2006 that the reprogramming is accomplished by just four specific gene control agents in the egg. The agents, known to biologists as transcription factors, are proteins made by master genes to regulate other genes. By injecting the four agents into an adult cell, Dr. Yamanaka showed that he could walk the cell back to its primitive, or stem cell, form.
Stem cells generated by this method, known as induced pluripotent cells, or iPS cells, could then be made to mature into any type of adult cell in the body, a finding with obvious potential for medical benefits.
Many biologists hope that Dr. Yamanaka’s technique will be the gateway toward generating replacement tissues from a patient’s own cells for use against a wide variety of degenerative diseases. (from Source 2)
Incidentally, John Gurdon's report card contained the following comment from his high school biology science teacher (he still has that report card with him):
“I believe Gurdon has ideas about becoming a scientist; on his present showing this is quite ridiculous. If he can’t learn simple biological facts he would have no chance of doing the work of a specialist, and it would be a sheer waste of time, both on his part and of those who would have to teach him.”
Source:
1) http://www.bbc.co.uk/news/
2) http://www.nytimes.com/2012/
3)http://www.dailymail.co.uk/
Image credit: www.nytimes.com
Saturday, October 6, 2012
Friday, October 5, 2012
Orientation Responses (AS 3.4) flashcards | Quizlet
Here's one for the plant and animal interrelationships section.
Orientation Responses (AS 3.4) flashcards | Quizlet:
'via Blog this'
Orientation Responses (AS 3.4) flashcards | Quizlet:
'via Blog this'
Study class on Sunday from 1.00 pm
Dear Students
Mrs Rippon will be holding a study class on Sunday 7 October in room B8 Starting at 1.00pm. All Biology students welcome.
Regards
Mr Edwards
Thursday, October 4, 2012
Interactive Concepts in Biochemistry - Interactive Animations
http://www.wiley.com/college/boyer/0470003790/animations/translation/translation.htm
Protein synthesis, a straight forward animation.
Wednesday, October 3, 2012
Monday, September 24, 2012
Speciation resource
Check out Berkley's education website on Evolution - some good resources can be found on this website
Friday, September 14, 2012
Study Class
Dear Students
If you are interested I will be running a study class in room B12 from 1.00pm on Saturday 15 September. All Biology students are welcome.
We will use the time to look at some past exam questions and review any topics you feel would help you be more confident in next Mondays examination.
Regards
Mr Edwards
Tuesday, September 11, 2012
Study class Wednesday
Dear Students
If you are interested I will be available in room B12 from 3.15 Wednesday afternoon to hold a 13 biology study class looking at past exam questions to aid your revision for the practice examinations. All biology students welcome.
Regards
Mr Edwards
Sunday, September 9, 2012
Plymouth Barred Rock chicks - genders revealed! (Sex linked traits)
Genders revealed......
Sorry Fran you are a male.....now called Frank
Inigo..........luckily we gave you such a manly name!
Benedict and Pingu our two cute soon to be hens!!
Find out more about how sex can be determined in young chicks using secondary sex characteristics in sex linked traits
http://www.ehow.com/how_6101169_tell-barred-rock-baby-chicks.html
Sorry Fran you are a male.....now called Frank
Inigo..........luckily we gave you such a manly name!
Benedict and Pingu our two cute soon to be hens!!
Find out more about how sex can be determined in young chicks using secondary sex characteristics in sex linked traits
http://www.ehow.com/how_6101169_tell-barred-rock-baby-chicks.html
Friday, September 7, 2012
The 'JUNK' in your DNA?
Watch the following clip to find out more about what the 'non coding' parts of your DNA are really used for.... Watch here.
Thursday, September 6, 2012
The 'cute chicks' in B11
Inigo the 'fourth born' - a real attention seeking and needy chick who is just so cute!
Left to right - Fran (Frank), Inigo (photo bombing!), Pingu, and Benedict,
Pingu, Fran (who we think is the most dominant of the chicks at this stage), and the others enjoying their first experience of grass.
Inigo and Benedits (youngest and oldest) snuggle up.
Left to right - Fran (Frank), Inigo (photo bombing!), Pingu, and Benedict,
Pingu, Fran (who we think is the most dominant of the chicks at this stage), and the others enjoying their first experience of grass.
Inigo and Benedits (youngest and oldest) snuggle up.
Mutations
The following video gives examples of substitution and frameshift mutations as well as chromosomal mutations. View video here
Wednesday, September 5, 2012
Thursday, August 30, 2012
Telling Body Time (link Gene Expression/Bio Rhythms)
Read the following article on a new method for assessing a persons circadian rhythm and implications for drug treatments
Wednesday, August 29, 2012
Monday, August 27, 2012
Wednesday, August 22, 2012
Tuesday, August 21, 2012
Monday, August 20, 2012
Hot turtles!
Find out more about the sex determination system in Turtles and how climate change can have an effect on ratio of males to females. View video
Friday, August 17, 2012
Non-mendelian Genetics
Paul Anderson touches on incomplete dominance, codominance, epistasis, multiple alleles, multiple genes and linked genes. View the clip to find out more.
Thursday, August 16, 2012
Tuesday, August 14, 2012
Monday, August 13, 2012
Linked Genes
Paul Andersen explains how linked genes behave and how linked genes were discovered. He shows how linked genes would be reflected in a dihybrid cross using a fruit fly simulator. Click here for more
Thursday, August 9, 2012
Wednesday, August 8, 2012
Sunday, July 29, 2012
New Neanderthal Type DNA Found - science | Stuff.co.nz
Human Evolution topic recent discoveries
New Neanderthal Type DNA Found - science | Stuff.co.nz: "New Neanderthal type DNA found"
'via Blog this'
New Neanderthal Type DNA Found - science | Stuff.co.nz: "New Neanderthal type DNA found"
'via Blog this'
Thursday, July 12, 2012
Monday, July 9, 2012
Biology Wednesday
Biology Monday was such a success, lets try for Biology Wednesday. 1pm (for the late risers) in room B12 Wednesday 11 July. There could be some food provided too.
All 13 Biology students welcome.
Friday, July 6, 2012
Make Monday Biology Day
Monday 9 July at 10 am room B12.
- past exam questions
- biotech research
- review previous topics
Friday, June 29, 2012
Thursday, June 28, 2012
Tuesday, June 26, 2012
Monday, June 25, 2012
Understanding DNA extraction
Discover how DNA is extracted and some applications of this technique by using this VIRTUAL LAB
Who's your Daddy? - Understanding Gel Electrophoresis
This VIRTUAL LAB shows you the technique used to seperate DNA fragment according to molecular size. The smaller the fragment the faster it moves through the gel. This has been used in DNA fingerprinting since the protocol was invented in 1975. It was commonly used in crime scene analysis and paternity testing. A second animation can be found here.
Understanding PCR
This is a great animation that allows you to perform PCR in a 'VIRTUAL LAB". You step through the process of Polymerase Chain Reaction (PCR) watching what happens at each step.
Biotechnology Learning Hub
Saturday, June 23, 2012
Friday, June 22, 2012
Crash Course - DNA Replication
The following link has a good overview of DNA replication. Click here to find out more.
Labels:
Gene Expression,
On line learning
Thursday, June 21, 2012
Khan Academy on 60 Minutes
Miss the notes in class? Didn't quite get a key concept?
Find out more about the Khan Academy and learning at your own pace by watching the following video from 60 Minutes. You can sign into Khan academy and register your teachers as tutors for extra assistance as they can track your progress online. Click here to watch video
Find out more about the Khan Academy and learning at your own pace by watching the following video from 60 Minutes. You can sign into Khan academy and register your teachers as tutors for extra assistance as they can track your progress online. Click here to watch video
Monday, June 18, 2012
Scholarship Tutorial
Room B12 Thursday after school
All interested students welcome. Any questions see mr Edwards.
All interested students welcome. Any questions see mr Edwards.
Thursday, June 14, 2012
DNA packaging
Watch the following video clip to show the relationship between the DNA molecule, histones, and when we can define it as Chromatin or a Chromosome.
Endosymbiosis - Evolution of Eukaryotic cells
The following video clip gives an overview of the process of endosymbiosis and the evolution of a more complex cell with double membrane bound organelles.
A tour of the cell - Bozeman Biology
We need to become familiar with the major organelles of the cell. This video clip steps through each organelle explaining function and structure. (Recap from 12 Biology)
Sunday, June 10, 2012
Animation - Phytochrome Signaling
As I sit at my kitchen table and mark your common tests I get the feeling that some of you need to find out more about phytochrome.
Animation - Phytochrome Signaling:
'via Blog this'
Animation - Phytochrome Signaling:
'via Blog this'
Wednesday, May 23, 2012
Short day and long day plants (photoperiodism)
Click here to watch a step-through narrated animation of short day and long day flowering in plants.
Thursday, May 17, 2012
Orientation responses flashcards (Quizlet)
Click here for ORIENTATION RESPONSES flashcards for AS 3.4 Plant and Animal responses
Labels:
flashcards,
Plant and animal responses
Timing responses flashcards (Quizlet)
Click here for TIMING RESPONSES flashcards for AS 3.4 Plant and Animal Responses
Labels:
flashcards,
Plant and animal responses
Species Interaction flashcards (Quizlet)
Click here for SPECIES INTERACTION flashcards from AS 3.4 Animal and Plant responses
Labels:
flashcards,
Plant and animal responses
Monday, April 30, 2012
Sunday, April 29, 2012
Preparing for battle - Circadian Rhythms
In a study of the molecular underpinnings of plant pest resistant, Rice University biologists have shown that plants both anticipate daylight raids by hungry insects and make sophisticated pre-dawn preparations to fend them off. View video here
Friday, April 27, 2012
2012 ICAS Australian Science Competition
SCIENCE Years 9-13 - entries are open now!! This is a 1 hour written test in June. A great chance to test yourself-too see how you match up to other students here at HVHS, in Wellington and across NZ. The entry fee is $8. You have just 1 week to enter at the Resource Centre. Entries close on Friday 6 May.
Thursday, April 26, 2012
Biodiversity loss and Climate Change
I have a few resources that students may wish to borrow for photocopying (collect from B11)
Books - Climate: The force that shapes our world and the future of life on Earth and The rough guide to Climate Change: The symptoms, the science, the solutions. There is also a DVD - State of the Planet: Is there a crisis (BBC).
Here are a few online tools that can be useful for background understanding. A discussion document can be downloaded, click here
Watch the following videos on:
Books - Climate: The force that shapes our world and the future of life on Earth and The rough guide to Climate Change: The symptoms, the science, the solutions. There is also a DVD - State of the Planet: Is there a crisis (BBC).
Here are a few online tools that can be useful for background understanding. A discussion document can be downloaded, click here
Watch the following videos on:
- Background to how scientists identify warming and cooling events using SST (sea surface temperature) click here for resource
- Case study looking at climate change and invasive species. Click here for resource
- Exploring geological history and environmental conditions triggering mass extinction. Click here for resource
Labels:
Biodiversity and Climate Change
Wednesday, April 25, 2012
Plants in Motion
Follow this link to find videos exploring plant tropisms
Labels:
Plant and animal responses
Questions about research assessment
I hope every one is getting a good collection of research for our internal assessment. In the past weeks I've fielded a number of questions that I thought I'd share with everyone. If you have any more questions please feel free to email or ask in a comment.
Firstly,
Can we copy and paste our info off the Internet into a word document (with
sources) so we only get the relevant info, or does it have to be printed off
the source?
Yes
I am happy for you to process you research in this way as long as it crystal
clear what the source of the material is.
Can
we make the links about loss of species leading to lack of biodiversity leading
to ecosystem damage? Or do we have to find research that explicitly states the
loss of biodiversity etc?
Biodiversity
and ecosystem damage are very often closely linked and depending upon the
situation you are looking at it could be the damage to the ecosystem is the
drop in biodiversity, while in other cases it could be that damage to the
ecosystem then results in a drop in biodiversity. You do need to make it clear
in your essay about the situation you are referring to.
Your
research can therefore not explicitly state loss of biodiversity if you can
make a sensible argument that the ecosystem damage could then lead to
biodiversity changing.
Can
we cut and Paste our research by question ie cut it up if it answers 2 points,
or does all the info the same source have to be together?
Yes
arrange it as it best suits you as long as it is clear where you got the
research from.
For
the effect of climate change on Biodiversity do we research what is happening
to species now AND what will happen in the future or just the future?
The
essay is future focused and it could get very long if we analyse the current
status to much.
Are
we looking for Controversy around whether climate change is occurring, or the
effect this will have on biodiversity ie the different effects it could have or
how severe?
The
controversy we are interested in is focused upon the effects it will have when
it occurs. Viewpoints upon its likely severity could also have some relevance.
can we include opinions that it will be beneficial for the ecosystems?
can we write about
the increase of algae growth in rivers due to increasing temperatures (as the plant
example) and then link that to decreasing biodiversity in other species
(ie algae decrease oxygen, less oxygen= less fish life which means a economic
impact as less fish can be caught) ? As opposed to talking about the
biodiversty of the algae?
I see no problem with your example. The effect on biodiversity
could be direct, or as in the case you mention, a secondary or consequential
effect to climate change. For me one of the main characteristics of ecological
systems is that there are so many levels of links and interactions between
living things and their environment
for
the internal, when talking about species, do we have to have detailed into
about a few selected species, or can it be lots of brief examples? such as:
"
In Africa, the nyala is vulnerable to expected
habitat change in Malawi's Lengwe National Park, and scientists have
predicted that South Africa's red lark could lose its entire remaining habitat.
Most climate models suggest large-scale habitat losses in the
prairie pothole region of North America, which produces 50-80% of the
continent's ducks. Other studies predict almost complete loss of high altitude
whitebark pine in Yellowstone National Park and of the unique Fraser fir-red
spruce forest of the southern Appalachians and Great Smoky, Mountains National
Park. "
(habitat loss as a result of climate change)
The example you give would be fine, you may want to spell it out
for the reader that; habitat loss leads to extinction for the species in
question and therefore a drop in biodiversity for the examples you mention.
can
we use resources stating the impacts of just global warming (as well as others
about climate change), rather than 'climate change' for all the sources? yes
also,
for the degree of damage, i have found views stating
'
biodiversity will be improved' and 'many species will be extinct' '50% species
loss predicted' and 'some species will benefit' and 'climate change is
predicted to become a major driver of biodiversity loss' and 'climate
change exacerbates other stressors' etc, are those what differing views we
are looking for?
This is one area of dispute between scientists which is
relevant. In addition the idea that factors apart from climate change may be
responsible for biodiversity changes is also of relevance in your discussion.
and
for implications, can they be general resulting from biodiversity loss, or do
they specifically have to be a result of loss of biodiversity due to climate
change? I
think the best tack to take is that climate change leads to biodiversity
loss and biodiversity loss has implications that follow ie social, economic
etc. the biological impact is the biodiversity loss and the follow on effects
when considering food chains and webs and interactions between species.
Friday, March 30, 2012
Monday, March 26, 2012
Lupin Trial 2012
Lupin Trial 2012:
In preparation for our Unit Standard on germination we have been looking at the effect of salinity upon the germination of Blue Lupin seeds.
In our trial they germinated best in a 6.25% solution of sea water to fresh water very few lupin seeds were able to germinate in the 100% sea water trial.
'via Blog this'
In preparation for our Unit Standard on germination we have been looking at the effect of salinity upon the germination of Blue Lupin seeds.
In our trial they germinated best in a 6.25% solution of sea water to fresh water very few lupin seeds were able to germinate in the 100% sea water trial.
'via Blog this'
Friday, March 16, 2012
Thursday, March 15, 2012
Phototropism and Gravitropism animations
Explore how a plant hormone called auxin stimulates cell elongation in plant shoots in these step by step animations of experiments.
http://bcs.whfreeman.com/thelifewire/content/chp38/3802001.html
http://bcs.whfreeman.com/thelifewire/content/chp38/3802001.html
Labels:
Meehan,
Plant and animal responses
Sunday, March 11, 2012
Saturday, March 10, 2012
Wednesday, March 7, 2012
Tuesday, March 6, 2012
Sunday, March 4, 2012
Another Human evolution web site
For some reason there is an abundance of websites focussed upon the evolution of humans. This one seems okay although the glossary wouldn't work for me.
Wednesday, February 29, 2012
Homework
Please take the time to listen to the Chris Stringer talk which I have made a link to in the previous post.
Sunday, February 26, 2012
Tuesday, February 21, 2012
Khan academy
The Khan Academy is a educational website that has instructional videos on a wide range of topics, particularly science and mathematics.
I'd like all my students to visit the site and create an account, register me as your coach and view some of the videos and exercises.
This is a link to the site
To add me as your coach see the following image:
Wednesday, February 1, 2012
Sunday, January 29, 2012
Harvard Thinks Big 2010 - Richard Wrangham - 'Catching Fire: How Cooking Made Us Human' on Vimeo
Control of fire was obviously important in the human evolution story watch this clip to find out just how important in may have been. Harvard Thinks Big 2010 - Richard Wrangham - 'Catching Fire: How Cooking Made Us Human' on Vimeo: "
Harvard Thinks Big 2010 - Richard Wrangham - 'Catching Fire: How Cooking Made Us Human' from HTB2 on Vimeo.
"
'via Blog this'
Harvard Thinks Big 2010 - Richard Wrangham - 'Catching Fire: How Cooking Made Us Human' from HTB2 on Vimeo.
"
'via Blog this'
Friday, January 27, 2012
2012
School starts next week and a new year 13 Biology class will exist once again like a solar flare erupting from our local star or a freshly emerged mayfly on it's one day of flight.
The student course information booklet is online now. You may notice that we have changed the order of our topics for 2012 and will be starting with the human evolution. This is so we can take advantage of a visiting scientist Professor Chris Stringer who is in New Zealand during February and will be delivering a lecture at the Embassy theatre Wellington on Saturday 25 February. It would be great if as many students as possible attended this event. These are the sorts of happenings that make the course content memorable and help spark interest in the Human Evolution topic.
The student course information booklet is online now. You may notice that we have changed the order of our topics for 2012 and will be starting with the human evolution. This is so we can take advantage of a visiting scientist Professor Chris Stringer who is in New Zealand during February and will be delivering a lecture at the Embassy theatre Wellington on Saturday 25 February. It would be great if as many students as possible attended this event. These are the sorts of happenings that make the course content memorable and help spark interest in the Human Evolution topic.
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