Abstraction made of the time, the geometry is preponderant. In this section, we will discuss a lot about vectors and we define the tangent, the normal and the binormal. The tangent The trajectory is the path a moving object follows
Chapter 4 : the motion, speed and acceleration
There is a motion if the vector changes over time. We can thus note this dependence . The variation of position is thus the motion. Noting the position of the object P1, P2, P3, … at consecutive times t1, t2, t3, …
Chapter 3 : the motion- the position
The first formalism that has to be known in physics is the formalism of the motion. A formalism is associated with a certain rigorous mathematical method, defining symbols and rules that are commonly accepted, in the goal that everybody understands immediately
Chapter 2: quantities and units
Units are necessary to evaluate quantities. Obviously, a rhinoceros is heavier than a dog, but to know by how much, we need some reference units. Moreover, rhinoceroses don’t all have the same weight. We are thus in need of a
Chapter 1: Elementary physics – Introduction
Definitions and laws “One of the noblest desire of the man is to know the laws ruling the Universe, and those who contributed to enlighten some of the mysteries were always admired by their peers; they appear as privileged, wearing
Chapter 3 : meiosis
The sequence of events during meiosis involves two nuclear divisions ( meiosis I and meiosis II ). Prophase 1 In prophase 1 of meiosis, the DNA coils tighter, and individual chromosomes first become visible under the light microscope as a
Chapter 10 : Photosynthesis
Photosynthesis Photosynthesis is the process that converts solar energy to chemical energy. Directly or indirectly, photosynthesis nourishes almost the entire living worlds -Autotrophs sustain themselves without
Chapter 9 : cellular energy production
AEROBIC WAY The citric acid cycle completes the energy yielding oxidation of organic molecules. In the presence of O2, pyruvate enters the
Chapter 8 : bioenergetics
Introduction to bioenergetics Cellular respiration is composed of three topics: Redox reactions (oxidation-reduction) Electron transport chain Glycolysis In fact living cells require energy from outside sources. Some animals obtain
Chapter 7: enzyme substrate complex
Substrate specificity of enzymes -The reaction that an enzyme acts on is called the enzyme’s substrate. -The enzyme binds to its substrate forming an enzyme-substrate complex -The active site is the region on the enzyme where the substrate binds. -Induced