Tuesday February 24th we studied how enzymes affect the coloration in potato extract. Enzymes are a
catalyst that speeds up the breakdown of molecules. In this lab we performed two different experiments
in order to gather information and to s
Research Project Hypothesis
The purpose of these experiments is to test the hypothesis that a species novel weapon are more
chemically defendant than native plants. Therefore, if they affect the native species negatively then
they weaken the ecosystem.
Che102- Laboratory Report
The purpose of this lab is to measure the sodium bicarbonate content within a 3g tablet of AlkaSeltzer.
Record mass of each empt
Insulin growth factors are polypeptides that function primarily to stimulate growth. IGFs are part
of a complex system that cells use to communicate with their physiological
All vertebrate control the rate in which their bodies grow with the
Trading Hormones Among Fishes
July 19, 2015
Insulin growth factors are polypeptides that function primarily to stimulate growth (Cumming, 1997).
IGFs are part of a complex system that cells use to communicate with their physi
Can Cancer Tumours be Starved to Death?
October 12, 2015
Cancer is any group of diseases categorised by an unrestrained, atypical growth of cells that can
spread about the body. The development of cancer is thought to arise f
What is the main difference between a male fly and a female fly?
The abdomen of the male is darker is more rounded, while the abdomen of the female is lighter and
How many OBSERVED wild flies did you have? 15
How many vestigial winged flies? 5
Endocrine signalling- secrete hormones directly into bloodstream
Peptide hormones- composed of amino acids
Polar/ cannot pass through plasma membrane
Bind to extracellular receptors/ trigger transmission of second messenger
The Nervous System
Neurons- highly specialized cells, responsible for conducting impulses
Electrical impulses- via ion exchange/ generation of membrane potentials (length of axon)
Chemical impulses- via neurotransmitter/ released from presynap
Cell Cycle- 5 Stages
Interphase (90 percent of time is spent in interphase): G1, S, G2- DNA is uncoiled in the form of chromatin (DNA are not visible under light microscopy)
G1 (presynthetic gap)
- Cells create organelles for energy/ protein pro
1) Explain why a bar graph is used for the mammal data.
Bar graphs works best when data is presented in groups and categories. The example
provides data regarding several different kinds of mammals sorted into groups then
subdivided by colour. The bar gra
How Regulatory Genes Direct Vertebrate Development
July 12, 2015
The endocrine system is a collection of glands that produce and secrete hormones that assist in
controlling many vital functions within the body. One of the maj