General Knowledge Flashcards
Gram positive bacteria
Have thicker cell wall, which stains well in the Gram stain test.
Gram negative bacteria
Have a thin cell wall, which stains worse in the Gram stain test.
What is conjugation?
The alternation of sigma and pi bonds in a molecule that increase stability.
What is resonance?
The alternation of position of eletrons in pi bonds or non-paired eletrons. It is also called mesomerism and describes a molecule which has more than one Lewis structure.
What is kinetic energy?
Energy associated with the motion of an object. It is determined by the formula K=m.V^2.1/2
Determine Energy.
Energy is a scalar number, measured in Joules that is maintained in a system with forces.
What is Potencial Energy?
Potencial energy is a property of the earth and determines the** energy contained in a system of interacting particles** that has potencial to become kinetic energy. That energy is associated with forces and the relative position of the objects in the system.
The potencial energy is ______________ proportional to the relative position.
Directionally
What is the conservation of energy?
In a closed system, all energy at the start must be the same energy at the end of the process*. The total energy is the sum of the final Kinetic energy, the final Potential energies and the final dissipated energy.
What is systemic circulation?
The big circulation of blood from the heart to the organs of the body.
What is pulmonary circulation?
The small circulation of blood from the heart to the lungs.
The left side of the heart has __________ blood.
Oxygenated.
The right side of the heart has __________ blood.
Venous
Define work.
The amount of energy transferred by a force and dependent of the angle of said force, measured in joules.
Define work net.
A change in kinetic energy. F.d.cosø = ∆K
Define power.
How quickly work is being done. P = W/t
