Introduction Every somatic cell undergoes a phase called mitosis. Mitosis is the division of the nucleus to form two genetically identical nuclei. There are four phases of mitosis: prophase, metaphase, anaphase and telophase. Prior to mitosis is interphase (when the cell grows and duplicates all organelles), and post-mitosis is cytokinesis (when the cell membrane pinches…
Abstract Using the formula λ = ∆x L / d, we will determine the wavelength of a red laser to be 641nm. Using this information we will then determine the track spacing for a CD and DVD. We calculate the track spacing for the CD to be 1.5 μm and the track spacing for the…
Community: A group of species that occupy a given area, interacting either directly or indirectly Predation Consumption of one organism by another organism Predator-prey population oscillations Predators and prey are agents of natural selection for each other defense or attack strategies camouflage aposematic colouration Mimicry Batesian: One species is harmful the other is non-harmful Non-harmful…
Abstract The purpose of this lab will be to determine the mass of the cargo carried on a low friction cart by analyzing its momentum during an elastic collision. The momentum will be calculated by recording and analyzing a video, in LoggerPro3.6, of an elastic collision with two carts, one with the cargo and one…
Patterns in Macroevolution Fossils Trace of any organism that lived in the past 99% extinct, used as evidence for evolution Law of Succession: resemblance between living and fossil forms in the same region Relative Dating Fossils formed in sedimentary rock in which the sediments form layers that differ in colour, thickness and composition Principle of…
Properties The speed of light is measured through the equation: v = λ f. However, it turns out that when light is reflected off a surface its speed stays the same. This was first proven by Sir Isaac Newton. Under the assumption of perfectly elastic collision, the laws of reflection follow from the laws of…
As millions of tons of organic compounds find their way into the water systems of the world, the environmental problems that result are colossal. This negligence might not affect the environment directly, but they have long-term effects. Some of these problems include: Heavy metal accumulates in lakes and ponds nearby industry, and this build-up is…
Canadian subsidies are the main reason why the Canadian softwood lumber producers and American softwood lumber producers are butting heads. Canadian lumber industries are able to sell their products at such a low price because of the negligence from the provincial and federal governments. The argument made by the American producers is that the fees…
There are two ideas on the origin: Infolding of the plasma membrane Part of the plasma membrane infolded until it was inside the cell – now the cell contained a membrane bound organelle Would take a very long time Endosymbiosis Mutually benefiting relationship brought about by one prokaryote cell becoming the host of another (one…
Introduction The transformation of bacterial cells is a useful experiment to help develop an understanding of transformation by plasmid DNA. This experiment involved four different scenarios of bacterial cells on agar plates. The scenarios were as follows, one plate with a plasmid, one without and one plate with ampicillin and plasmid, and one with ampicillin…
Inheritance of Different in Prokaryotes Mutations arise, move from donors to recipients, incorporated to recipients through recombination Transposition: some genes are mobile and can be transferred to another site, and then another host Transformation: the conversion of the heredity type of a cell by the uptake of DNA released by the breakdown of another cell…
Asbestos is a silicate mineral that has essential physical properties to be used in manufactured products. Throughout the twentieth asbestos was mostly used by contractors that constructed buildings and homes. Now it is commonly known that asbestos is linked to a number of various diseases and illnesses. The removal of asbestos from buildings and homes…
Part A: Determining the complete rate law The order of reaction with respect to the iodate ion, m, must be determined for the following rate. It is assumed that the order of reaction with respect to the bisulfate is zero, thus n is zero. Sample calculation done for the first C2 value and the first…
The world is full of interesting things, none the least of them are plants, they have developed many different ways to grow, cope, survive and flourish in almost every environment on earth. From water retention to parasitic growth, symbiosis to carnivorous behavior, plants are the supreme adaptors. This report is comparing two very interesting and…
After rocks are formed, they are weathered when exposed at the surface; this prepares material for transport by erosional processes in the rock cycle two main types of weathering include mechanical (disintegration) and chemical (decomposition) that act together and enhance the effectiveness of each other Mechanical: reduction of rocks to smaller pieces, includes: Frost wedging…
Purpose The purpose of this investigation is to explore the percent yield of the precipitate in the reaction. Introduction For known amounts of reactants, theoretical amounts of products can be calculated in a chemical reaction or process. Calculated amounts of products are called theoretical yield. In these calculations, the limiting reactant is the limiting factor…
Purpose The purpose of this investigation is to determine the effect that varying temperatures have on the rate of a reaction. Introduction Based on the Kinetic Molecular Theory, the central idea of the collision model is that molecules must collide to react. Therefore, the greater number the number of collisions per second, the greater the…
Planning A: Refer to lab handout entitled, Heat of Reaction for the Formation of Magnesium Oxide. Planning B: Refer to lab handout entitled, of Reaction for the Formation of Magnesium Oxide. Data Collection: Quantitative Table I: Compound Trial Mass±0.001g Volume of HCl±0.5mL Temperature of HCl±0.5°C Time (seconds) Temperature of solution±0.5°C MgO 1 1.020 100.0 21.0…
Introduction Vinegar is a common household item containing acetic acid as well as some other chemicals. This experiment is designed to determine the molar concentration of acetic acid in a sample of vinegar by titrating it with a standard solution of NaOH. CH3COOH(aq) + NaOH(aq) -> CH3COONa(aq) + H2O(l) By adding the sodium hydroxide, which…
Question: What effect does the concentration of a substance have on the overall rate of a reaction? Hypothesis A higher concentration of a given substance may cause a reaction to proceed at a faster rate when compared to a reaction with a lower concentration of the same given substance. This would be because there would…