IB SL Biology Lab
Transformation and Electrophoresis
How can a plasmid be engineered to include a foreign piece of DNA and how does gel electrophoresis separate DNA molecules present in a mixture?
If the pGLO plasmid is inserted into competent Escherichia coli cells, then the transformed bacteria will be resistant to ampicillin and will glow green under UV light. If samples of DNA are cut using certain restriction
A. Fermentation Lab- The basic process
Prepared 3 beakers with contents listed below. ( a. Beaker 1: glucose only b. Beaker 2: Starch only c. Beaker 3: Starch + amylase). Poured contents of each beaker into its respective fermentation tube, ensuring the tail portion of the tube was filled with liquid. Placed tubes in an incubator at 37 degrees, measuring distance between tip of tube tail to fluid level at 20, 40, and 60 minute intervals. Calculated gas volume using this distance along with radius
BIOLOGY MIDTERM ESSAY
1. How does the biologist determine whether a thing is living or nonliving? Or what characteristics do living organisms have that non-living things do not?
They look at it under a microscope and see if it has cells. Basically, if it has cells the it's alive. If it doesn't have cells it is considered nonliving. There are smaller archaebacteria that behave like small parts of cells. These are considered living too, because they have chemical bonds of RNA, which is the singular
AIM: To test a leaf for starch
* bunsen burner, tripod stand, wire gauze(OR 90oC electric water bath OR hot plate)
* 250 cm3 beaker
* boiling tube
* anti- bumping granules
* test tube holder
* white tile
* leaf to be tested (hibiscus leaves are excellent)
* 90% ethanol
* iodine/potassium iodide solution
The video above shows the steps in Testing a Leaf for the Presence of Starch. The Procedure outlined below is
Osmosis Lab Report
First Lab Report
February 20, 2013
The major objective of the experiment was to test the effect of the concentration gradient on the diffusion rate. It was hypothesized that the greater the stronger the concentration gradient, the faster the rate of diffusion would be. To test this, dialysis tubes were submerged in different concentration fructose solutions. We weighed the tubes at specific
Biology and Psychology
1. Which of the following would not be possible without the functioning of the nervous system?
ideals, thoughts, and plans
behaviors, emotions, and cognitions
imagery and cognitions
all of these
ANS: D DIF: 2 REF: 2-26 OBJ: 1
MSC: TYPE: Conceptual
2. A(n) _________ is a nerve cell.
ANS: B DIF: 1 REF: 2-26 OBJ: 1
MSC: TYPE: Factual NOT: BTC
05 August 2013
Chapter 1: Finding Your Inner Fish
Judging by the image of the magazine cover, this chapter will cover fossils as well as evolution. Perhaps it will talk about how land and water organisms are similar.
The magazine cover is Tiktaalik which is a very famous fossil that is the first to show aquatic creatures becoming more associated with being on land and adapting. Tiktaalik is the first
UNIT 1: Photosynthesis
Photosynthesis Word Equation:
Carbon Dioxide + Water Oxygen + Glucose
How to test a leaf for starch:
1. Dip leaf boiling water for about 1 minute to soften it, stop further chemical changes and make the cell more permeable.
2. Turn off Bunsen burner.
Put the leaf into the
Biology SL Internal Assessment
What is the effect of heat on vitamin C concentrated in lemon juice?
“Vitamins are complex organic substances that are needed in very small amounts for many of the essential processes carried out in the body.” 1It is estimated and supported scientifically that only a few mg are filling the daily recommendation, which is essential for a healthy living. As most of vitamins cannot be produced by our bodies, we need to obtain them
Biology, 7e (Campbell)
Chapter 24: The Origin of Species
1) Which of the following applies to both anagenesis and cladogenesis?
B) increased diversity
D) more species
E) adaptive radiation
Topic: Concept 24.1
2) Which of the following statements about species, as defined by the biological species concept, is (are) correct?
I. Biological species are defined by reproductive isolation.
in our bodies need glucose to respire and in the process release the energy we need. Glucose is also a type of carbohydrate. It has a chemical formula of C6H12O6 and is a monosaccharide reducing sugar (Kolej Mara Banting – Students’ Handbook for Biology HL Year 1). It is the simplest form of carbohydrate. In this experiment, sulphuric acid, H2SO4 and potassium permanganate, KMnO4 is added into glucose with different concentration and the time taken for the purple pink colour of potassium permanganate
Administration (FDA) but there are two other drugs that are currently in clinical trials. Synaptic is a fairly large company with 1,200 employees. The two main departments that are of issue are the Information Management (IM) and the Computational Biology department. There are no clear define roles and responsibilities of the Synaptic staff and there is a lack of leadership and organizational culture. Additionally, it is unsure exactly what Synapic’s organizational goals and objectives are. This
Darwin claims that the interrelationships between species exclude God; yet science’s exclusion of God cannot disprove His existence. There is no research out there that disproves intelligent design— that disproves God. I love science; biology, chemistry, and math are some of my favorite subjects. When I learn about all the patterns of nature (like natural logarithms), the components of matter, and the universe, I don’t see mindless mechanistic coincidences; I see the direct results of
The Evolution of the Creation Controversy in Twentieth Century America
"The fact of evolution is the backbone of biology, and biology is thus in the peculiar position of being a science founded on an improved theory, is it then a science or faith?" Charles Darwin
"The empirical detectability of intelligent causes renders intelligent design a fully scientific theory." William Dembski
Questions on the origin of life and of the universe must have permeated human thought since
Meiosis and Genetic Diversity in Sordaria
Biology 110 Lab
In Israel there exists multiple spots in the mountains called Evolution Canyons, which are all located between a southern facing slope (SFS) and a northern facing slope (NFS). What’s particularly interesting about these locations is that despite the two slopes being on opposite sides of a small canyon, they exhibit extremely contrasting conditions. The SFS receives multiple times the UV radiation from the sun
Upper Hutt College
Year 13 Biology
Achievement standard: biology 3.1
Introduction to experiment:
In this investigation of the ecological niche of the woodlouse, I chose to experiment the amount of soil moisture that the slaters tend to prefer. I chose this aspect, as moisture is a vital part in the survival of this small creature.
Internet sources provided information of the woodlice that shows that they are from crustacean descent and formerly aquatic even though now they
Physical Context of African History:
Geography and Environment
1. Although some may think of Africa as being of a single climate and terrain description, in reality a wide variety of land types can be found throughout Africa. How does this wide variety of climates and physical terrains affect human life and settlement patterns on the African continent? Different terrains and climates allowed for different lifestyles for Africans in different regions. Those close to the sea were
Mr. Kumar is Pi's biology teacher at his school who is also an active Communist. He is Pi's favorite teacher, and an atheist who sees the zoo as his temple. However, the other Mr. is a Muslim and a baker, with coincidentally the same name as the biology teacher. Satish the baker teaches Pi about Islam. His biology teacher influences him to study zoology in college while the baker helps lead Pi to study religion at
DESCRIBE THE STRUCTURAL COMPARTMENTATION OF MAMMALIAN CELLS
AND THE DIFFERING FUNCTIONS OF THESE COMPARTMENTS
All mammalian cells are eukaryotic, and whilst the eukaryotic type of cell is not exclusive to mammals, mammalian cells differ from other eukaryotic cells because of the organelles that are or are not present. For instance some plant cells have chloroplasts which are not present in mammalian cells, but both plant cells and mammalian cells are eukaryotic in nature. The term eukaryotic refers
How Do We Move?
Many of us go through our daily lives and activities without much thought on how
or why we move our bodies. Walking, jogging, lifting weights or even getting ourselves
out of bed in the morning requires an intricate pattern of processes that allow us to
move and access our enviroment. Our bodies move through a lever and pulley system
made up of our muscles bones and tendons acting on each other through muscle
contraction and relaxation. (1,3) To understand
Duckweed is a small aquatic plant that is able to grow rapidly, making it the ideal specimen for our experiment. It is hypothesized that altering the amount of light received by duckweed will alter its photosynthetic rate. It is predicted that a lower light intensity will lower the rate of growth in duckweed.
Two treatment groups were covered with a screen in order to reduce light intensity. Both groups were kept under a controlled light source for fourteen days and plant counts were
This experiment is to study and measure the enzyme activity of β-galactosidase in the different concentrations of o-Nitrophenylgalactoside (ONPG) using a spectrophotometer. The spectrophotometer was also set at 420nm, a wavelength which is best for recording the absorbance values for the experiment. From the results, 0.9mM ONPG solution has the highest absorbance and 0.1mM ONPG solution has the least. Also, 0.5mM ONPG solution has the highest rate of enzyme activity and it is the most efficient
Social Psychology Paper Scenario - PSY120
“Social influence effects of the presence of others in the way people think, feel, and behave” (Kowalski & Westen, 2005). Social influence is associated with both behaviors because the changes in behaviors are due to the attitudes of others or guidance towards a particular direction. Sarah has not had this kind of influence before, always following the rules, she has done what she’s told and followed the path set for her by her parents. This path and
Lauren Van Heukalem
Section No. 1
December 1st, 2014
Wa’ahila Ridge: Percent Cover of Megathyrus maximus and Senna surattensis and its relation to Elevation
Percent cover of both Megathyrus maximus and Senna surattensis is estimated using quadrats on 11 separate plots along Wa’ahila Ridge. Percent cover of these two plant species were compared to the measured elevation using a GPS, in each plot. A p-value greater than .005 for each indicates a lack of significance
AP Biology Lab: Catalase (Enzymes)
In this laboratory exercise, studies of enzyme catalase, which accelerates the breakdown of hydrogen peroxide into water and oxygen. The purpose was to isolate catalase from starch and measure the rate of activity under different conditions. The laboratory was also conducted in association with a second laboratory that measured the effects of an inhibitor on the enzymes.
Changes in temperature and pH along with Substrate Concentration and Enzyme
The Island of Dr Moreau, by H.G. Wells, is not an ordinary science fiction novel. It doesn't deal with aliens or anything from outer space, but with biological science that exists on earth. The novel was about a character, Edmund Prendick that gets involved with an island of experimentation. At first glance, this tropical paradise seems idyllic. But deep in the jungles lies a terrifying secret. Moreau and Montgomery have been performing scientific research on human beings and the experiment goes
Generation of pattern and diversity in Central Nervous System
Central nervous system (CNS) is composed of brain and the spinal cord. Neurons constitute a major part of the developing CNS. An axon is an extension of a neuron. The brain grows as a swelling at the front (rostal) end of the neural tube and later leads to become a spinal cord (1,2). Development of the CNS involves many complex mechanisms beginning at the onset of transformation of a single layer of ectodermal cells, the neuroectoderm
I have known Rachel since we were in third grade and she’s been a close friend for most of that time. When we were in high school she told me that she was a lesbian and that she had known since we were children. She has tried dating men but doesn’t feel the kind of attraction for them that she had and still has for women. In a conversation we had nearly two years ago she told me, “I’m almost jealous of you. Sometimes I wish I could be attracted to men, it would make my life so much easier.” That
13B – Distribution and constituents of fluids
P3: Distribution and constituents of body fluids –
M2: Explain functions of the constituents of body fluids -
Constituents of body fluid -
The human body consists mostly of water, and is a major constituent to the human body and vital organs; of this 90% include blood plasma, lymph, urine, saliva, digestive juices, bile, cerebrospinal fluid and tissue fluid. Water enables substances to be transported throughout the body, red blood cells
(A) the new biomedical device made by tissue engineeringand now used to treat the damaged blood vessels of heart attack victims
(B) a radical group of bioengineered superheroes inthe Hollywood movie GATTACCA
(C) a molecular biology tool used in the lab to measuresmall volumes of liquid common in biotechnology
(D) a new type of bio-engineered crop plants that are drought tolerant
(E) a new surgical tool used in to extract cancer cells
21. An ultracentrifuge consists
A Short History of Nearly Everything is a popular science book by American author Bill Bryson that explains some areas of science, using a style of language which aims to be more accessible to the general public than many other books dedicated to the subject. It was one of the bestselling popular science books of 2005 in the UK, selling over 300,000 copies.
instead describing general sciences such as chemistry, paleontology, astronomy, and particle physics. In it, he explores time from the Big
History and Background
Anagene is a biotechnology firm started by Mark Hansen and Harold Bergman in 1993. Hansen and Bergman planned to combine microelectronics and molecular biology to develop products that would have broad commercial applications in genomics and other fields. Anagene’s mission was to facilitate breakthrough genetic analysis. The company went public in the year 1998 and raised $42.9 million. The company’s core product was a cartridge which had to be analyzed with a Anagene-designed
conservation tools simply stems from smarter individualist choices we make in efforts to reduce CO2 emissions on a daily basis.
Strategies and techniques for marine conservation tend to combine theoretical disciplines, such as population biology, with practical conservation strategies, such as setting up protected areas, as with marine protected
scholars in the field of psychology surrounding the Nature vs. Nurture issue. Both nature and nurture determine who we are and neither is solely independent of the other. “As the area of a rectangle is determined by its length and its width, so do biology and experience together create us.”(Myers, 2008, p. 8) Carl Gustav Jung, and leading thinker and creator of analytical psychology, believes: “Human behavior is influenced both by individual experience and also by an innate “collective unconscious”
Report: Understanding Photosynthesis
Gen Biology Lab
This lab was called photosynthesis: understanding photosynthesis. It is a highly complex process that needs to be broken down in many steps to understand how it works. This lab covers the big components in photosynthesis including carbon dioxide intake, light consumption, and varying pigmentation.
Photosynthesis is a huge concept to learn and understand in the field of biology. Plants have their own special way of
Impact and Control of the Brown Tree Snake as an Invasive Species on Guam
“Invasive species are a rapidly growing problem, and in many areas, they are the second-most-important cause of species declines” (Perry & Vice, 2009, p. 993). Often times, the invasive problem is by accident due to transportation of the species, but at times is intentional. This paper will review the history of the Brown Tree Snake as an invasive species, a species description of the
Title: Comparing fish protein
Darwin's Theory of Evolution is the commonly thought notion that all life is linked and has descended from a common ancestor. Darwin's general theory assumes the development of life from nonlife and stresses a purely naturalistic "descent with modification". That is, complex creatures evolve from more simplistic ancestors naturally over time. “Natural selection is a process in which individuals that have certain inherited traits tend to survive and reproduce
Your Inner Fish
1. Why should we care about evolution? Why is it important?
Evolution is the building blocks to biological science. If we did not care about evolution, we would not understand the concept of biology, or any type of science for that matter.
2. What does it mean to be human? Did your concept change after reading the book?
After reading the book, I began to understand why my body looks the way it looks. I realized that we are all the same inside—from fish
Feminists have been active in their role for decades. The first women who were proponents of women's rights, advocates for self-promotion of women's freedoms and leaders of women into the 20th century, I believe would be appalled at where the current "feminists" have taken their cause. In the late 1960's a movement ensued, a movement of great proportions. This ideological stance of women needing to empower themselves against men and their "inherent violence" began a degradation of men's roles
This case describes the reorganization of drug discovery at GlaxoSmithKline (GSK) following the formation of GSK from the merger of Glaxo Wellcome and SmithKline Beecham. This reorganization placed nearly 2,000 research scientists into six centers of excellence in drug discovery (CEDD). Each CEDD focused on a small set of therapeutic areas and possessed decision rights over the progression of pharmaceutical compounds through the early stages of development. It addresses issues about the benefits
Volume : 3 | Issue : 1 | January 2013 | ISSN - 2249-555X
Ecology in Relation to Ecocriticism – A Theoretical
Ecosystem, ecological concern, ecocriticism, theoretical analysis.
Dr. P. Nagaraj
PhD Research Scholar, Department of English and Foreign
Assistant Professor, Department of English and Foreign
Languages, Bharathiar University, Coimbatore, Tamil Nadu, India Languages, Bharathiar University, Coimbatore, Tamil Nadu, India
Title: “The Effect of Substrate Concentration, Enzyme Concentration, pH and Temperature on Enzyme Activity”
In the following experiments we will measure precise amounts of potato extract as well as Phenylthiourea, combined with or without deionized water and in some instances change the temperature and observe and record the reaction. We will also investigate the different levels of prepared pH on varying samples of the potato extract and the Phenylthiourea and record the results.
In order to begin analyzing Aristotle and Descartes contribution to our notion of a person, we need to be able to understand what the term personhood' means. Unfortunately there is no clear answer, with philosophers still presenting conflicting ideas. However by asking questions such as; is personhood' identical to human being? What is the essence of a person? What relation does a person have with the world? When does personhood begin? At what point if ever does it end? And finally what makes a
information to produce proteins?
Bacteria belongs to a group of organism that lacks cell nucleus and membrane bound organells. This group of organisms are termed as prokaryotes. Prokaryotes follows the central dogma of molecular biology first proposed by Francis Crick in 1958 to synthesize proteins from mRNA through a process called translation and the mRNA is being synthesized from the DNA by another process called Transcription. Temperature, nutrient availibity are some key factors
How Marsupials adapt to the arid Australian Environment
The increasing aridity of the Australian continent over the past 20 million years has favoured organisms that could adapt to dry conditions. Marsupials have developed a variety of behavioural, physiological and morphological adaptations to survive in these arid conditions with little or no food and free water for extended periods of time.
Marsupials living in Australia’s hot arid environment must deal with exposure
November 8, 2012
BIO 111, C11- Online
Title: Mitosis and Meiosis
Exercise 1: Mitosis in Animal and Plant Cells
A.) What is the purpose of mitosis?
The purpose of mitosis is to create or produce more cells for a living organism. Mitosis occurs when genetic substance in the nucleus divides or separates in order to create more cells. Cytokinesis normally occurs next and the single cell develops into two separate cells. This same process continues
November 30, 2007
Lab Partner: Sasha-Kaye Graham
Experiment 6 : Lectin Agglutination
To study the agglutination pattern of different strains of Psuedomonas aeruginosa to different sialic acid-binding lectins.
The cell membrane of two strains of Psuedomonas aeruginosa, P22 and P201 were treated the sialic acid lectins SNA I, WGA, MAL and HAA to confirm the presence of sialic acid carbohydrates in the cell surface membranes of these strains. This was done by
The Fallacy in Teaching Macroevolution as Scientific Theory
March 21, 2011
A seemingly endless debate continues over the legitimacy of teaching evolutionary theory in classrooms, particularly in communities where religion plays a prominent role in community life. Some church leaders, teachers and school board members argue that alternate explanations provided by creationists or proponents of intelligent design should be taught alongside those of evolutionary theorists in science classrooms
of humor and passion.
Imagine you are dreaming being a teacher, you must accept that there are no doubt that knowledge is the first quality of a good teacher. A good teacher need to enlarge his/her general knowledge on culture, society, biology, geography… to provide students what they want to know. Beside, a good teacher must be a person who are open to change. He/she must know “the only real constant in life is change”. There is a place not only for tradition but also for new ways, new