Thursday, May 5, 2016
TOK natural science
- What is natural sciences? NS
- it is the physical world
- what are the aims of NS?
mans relationship with the natural world - not relationship to his/her own mind
- scientific method
- the scientific me
How do agricultural practices in China, the United States, and Brazil, such as the
use of genetically modified crops and pesticides, affect population decreases of
bees (Anthophila), and what is the environmental as well as economic impact of a
What is the Effect of Different amounts of Water on the Rate of
Radish Seed (Raphanus
P.4 IB Biology
IB Biology Internal Assessment
The Effect of Amount of Water on Rate of Seed Growth
What is the effec
EXPLAIN HOW NATURAL SELECTION LEADS TO EVOLUTION (8 MARKS)
- Natural selection theory was first postulated by Charles Darwin; described as survival of
- genetic variation within a population is necessary
- competition for survival
To what extent does the mass of a green bean seed, Phaseolus vulgaris,
height of a green bean plant?
P.4 IB Biology
I. Research Question
To what extent does the mass of a green bean seed, Phaseolus vulgaris, affect the
IB Personal Code: ftt418
To what extent does the overuse of antibiotics affect
different livestock in the meat industry?
Word Count: 3563
This investigation will answer the question: to what extent does the overuse of
Marlena Boekhoff, Casey Winslow, Arnold Hahn
Unit 6: Human Physiology Text Handout Answered
Topic 1 - Digestion and Absorption
Objective #2, 3, 4 & 37 - Digestion in the Small Intestine. See page 903 Campbell.
1. Describe macromolecule di
DNA gyrase (also called DNA topoisomerase) moves in advance of the helicase
and relieves strains (loosens) in the DNA molecule while the double helix is
Without gyrase performing this task the separate strands would form tight
Depolarization: Depolarization refers to a sudden change in membrane potential It
is the Loss of the difference in charge between the inside and outside of the plasma
membrane of a muscle or nerve cell due to a change in permeability and migration
September 19, 2016
Catalase Design Lab
How does the change in concentration affect the rate of reaction between Saccharomyces
cerevisiae and Hydrogen Peroxide?
I have always been intrigued by
The ocean's power to rein in carbon and
protect the environment is vast but not
But now, an internati
Heart Attacks &
By: Lauren Gaul and Katie
Consequences of High
Headaches: Lasting for
Nausea: Having a sensation of
unease and discomfort in the
stomach with an urge to vomit.
Vomiting: Less common than
IB Biology P.3
June 20, 2016
IB Biology Internal Assessment
The Effect of Abrasion of the Seed Coat on Germination
Problem: How does abrasion, of the seed coat, of a Phaseolus vulgaris bean affect its
rate of germinatio
Katie, Sam, Henry, Julia
NOS 2.3 Evaluating claimshealth claims made about lipids in diets need to be assessed.
Lipids provide people energy and are found in foods such as meats, dairies, avocados,
and nuts. Dietary lipids help the function of cells and g
IB Biology HL
Catalase Implementation Lab
Raw Data Table:
Measured Height in Millimeters of Catalase Chemical Reaction with Different Ph Levels
Height of Foam (+/-1mm)
Julia, Natalie, and Katie
TOK 2.6: The story of the elucidation of the structure of DNA illustrates that cooperation and
collaboration among scientists exists alongside competition between research groups. To what
extent is research in secret ant
Julia Shull, Lauren Gaul and Katie Cowan
NOS 6.1 Use models as representation of how the real world-dialysis tubing can be used to
model absorption in the intestine.
What is dialysis tubing and how does it work?
Dialysis Tubing is the process also known a
Explain how plants transport organic compounds from source to sink.
Xylem, phloem, water cohesive and adhesive, concentration of sugars, water flows with xylem
up to leaves from root source to new leaf sink, in phloem down to roots and new leaves
Extended Response Questions for Protein Synthesis Unit1. Explain the process of transcription in eukaryotes.
Transcription is when DNA nucleotides are used as templates for making RNA.
Four parts: initiation, elongation, termination, editing
Explain the factors that affect the distribution of animal species (6 marks)
Temperature, sunlight availability, water availability, oxygen availability
Physical barriers (geography like mountain ranges, oceans, canyons, etc.)
We will randomly choose 1 of the following-1. Explain the relationship between Mendels law of independent assortment
a. The presence of one allele does not affect the presence of another
b. Metaphase I and II indep assortment
c. the d
Standard Level Topic 5 Evolution and Biodiversity
5.3 Classification of Biodiversity (Background reading Campbells 548-553: end of chapter review!)
The binomial system of names for species is universal among biologist and has been agreed and