Solute: substances that are dissolved in fluid (eg. salt) Solvent: the liquid the solute is dissolved in (eg. water) Passive Transport movement of materials across a cell membrane without energy; Movement along a concentration gradient Diffusion movement of particles from an area of high concentration to an area of low concentration movement will continue until…
Nucleus: Contains most of the genetic info in the eukaryotic cell (some genes are located in mitochondria and chloroplasts) Contains 1 or more nucleolus surrounded by nuclear envelope Nuclear envelope: a double membrane that encloses the nucleus separating its contents from the cytoplasm. Nucleolus – appears as a mass of densely stained granules and fibres…
The quantity of energy associated with the formation of one mole of a substance from its elements (in their standard states). The standard states (at SATP) of most elements are solid, except for the gaseous diatomic molecules, H2, O2, N2, F2, Cl2, and the two liquid elements Hg and Br2. These energies can be looked…
Temperature Most seeds need a certain degree of warmth to germinate (sprout). Most plants have an optimal (best) range of temperature for growth. Higher: Plants have smaller leaves, thicker cuticles, and wilt is more likely to occur. Lower: Grow lower to the ground, have shorter life cycles, and dish-shaped leaves. Temperature affects moisture and nutrient…
Biological (Medical) Model The mind’s activity depends on the brain whose composition is genetically determined Still acknowledge influences of environment and learning Genetic influences on anxiety and depression Brain structure different in individuals with schizophrenia- process information differently Therapy: Pharmacological treatments (medication) Behavioural Model Focuses on what people do rather than on brain structures and/or…
Typically emphasizes exposure as well as changing problematic patterns of thinking Typically involve- 10 individual or group sessions with a therapist plus homework Has been shown to produce significant improvements Has been combined with drug therapy Agoraphobia: Fear of not being able to escape from a public place if they have a panic attack The…
Sex and Gender Roles Sex – a determination of male or female on the basis of a set of socially agreed-upon biological criteria Gender – social distinctions between masculinity and femininity The Biological Female and Male? Problematizing the sex/gender distinction, and the category of sex itself, is the assertion that our bodies are absolutely separate…
Species: Latin word meaning “kind” Speciation: The origin of new species Macroevolution: The evolutionary changes above the species level eg. The appearance of feathers during the evolution of birds from one set of dinosaurs Anagenesis – one species over time becomes another species Cladogenesis– one species, over time, splits and becomes two species Morphogensis– look…
The chemical reactions of metabolism are reversible, and they, too, would reach equilibrium if they occurred in the isolation of a test tube. Because systems at equilibrium are at a minimum of G and can do no work, a cell that has reached metabolic equilibrium is dead. A cell in our body is not in…
Selective Permeability: Allows some substances to cross it more easily than others. A phospholipid is an amphipathic molecule, meaning it has both a hydrophilic region and a hydrophobic region. Fluid Mosaic Model: The membrane is a fluid-structure with a “mosaic” of various proteins embedded in or attached to a double layer (bilayer) of phospholipids. The…
Living systems increase the entropy of their surroundings, as predicted by thermodynamic law. We can trace the ancestry of the plant kingdom to much simpler organisms called green algae. However, this increase in organization over time in no way violates the second law. The entropy of a particular system, such as an organism, may actually…
Energy: The capacity to cause change. Kinetic Energy: Energy can be associated with the relative movement of objects; this energy is called kinetic energy. Heat/Thermal Energy: Kinetic energy associated with the random movement of atoms or molecules. Potential Energy: An object not presently moving may still possess energy. Energy that is not kinetic is called…
A hurricane is defined as an intense rotated oceanic weather system, which has speeds faster than 74 miles per hour. Hurricanes form over tropical regions of the ocean during the late summer and early fall. In order for a hurricane to from the water must be warmer than usual, with a temperature of 27 C.…
Overview Canada flushes approx 200 billion liters of raw sewage directly into natural waterways every year, from the St Lawrence River to the Strait of Juan de Fuca and the Pacific Ocean. That is only six percent of the three trillion liters of sewage Canadians produce annually but it is still enough to fill more…
One of the major environmental crises that are taking place in the world today is the extensive destruction of the Amazon rainforest. This has been a problem for four decades now, since the rapid increase in the population of the globe meant that it has become necessary to find land on which to grow crops…
Water, the most important resource on the planet, is not simply “H2O” unless it is first distilled. It contains many natural elements, some beneficial to health and some harmful. Water constituents are defined as a hazard when they have the potential to impair health. In addition to the natural hazards humans add to the constituent…
Over the past few years, Autism Spectrum Disorder has been on the rise in North America and the reasoning behind this increase has been studied greatly. Autism Spectrum Disorder, otherwise known as ASD, is characterized by the presence of chronic inflammatory disease and loss of acquired cognitive function, possibly due to absorption of vitamins or…
Microevolution: The change in the genetic makeup of a population from generation to generation Mendel’s model: the particulate hypothesis of inheritance Quantitative characteristics: characteristics of a population that vary along continuum. Eg. Fur length in mammals Population genetics: study of how populations change genetically over time. Modern synthesis: a comprehensive theory of evolution that integrated…
LAB #1 (LAB #2 #3 below) Equipment: Kinematics Cart 2 500g bar masses Kinematics Track 50g hanger Several 100g masses String Pulley iBook Computer USB Cable Motion sensor Purpose: How will the acceleration of an object’s mass (m) change when the net force acting on it changes? Prediction: We predict that the acceleration of an…
What is Health? -Health is a state of complete physical, mental, and social well-being and not merely the —- absence of disease or infirmity -Heath is therefore seen as a resource for everyday life…health is a positive concept emphasizing social and personal resource as well as physical capabilities What is Wellness? -An expanded idea of…