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SCIENCE 10 - Unit C: Cycling of Matter in Living Systems (General Outcome…
SCIENCE 10
- Unit C: Cycling of Matter in Living Systems
General Outcome 1
Explain the relationship between developments in imaging technology and the current understanding of the cell
Cell theory development
all living things are made up of one or more cells and the materials produced by these
e.g. from Aristotle to Hooke, Pasteur, Brown, and Schwann and Schleiden
cells are functional units of life, and all cells come from pre-existing cells
e.g. recognize that there are sub-cellular particles, such as viruses and prions, which have some characteristics of living cells
Research techniques
advances in microscope technology and staining techniques help increase knowledge of cell structure and function
e.g. electron microscope, confocal laser scanning microscope [CLSM]
identify areas of cell research at the molecular level
e.g. DNA and gene mapping, transport across cell membranes
General Outcome 2
Describe the function of cell organelles and structures in a cell, in terms of life processes, and use models to explain these processes and their applications
Passive vs active transport
in terms of the particle model of matter, concentration gradients, equilibrium and protein carrier molecules
e.g. particle model of matter and fluid-mosaic model
describe how knowledge about semi-permeable membranes, diffusion and osmosis is applied in various contexts
The cell as a system
the cell is an open system that acquires nutrients, excretes waste, and exchanges matter and energy
describe the role of the cell membrane in maintaining equilibrium while exchanging matter
Identifying cell structures
the cell membrane, nucleus, lysosome, vacuole, mitochondrion, endoplasmic reticulum, Golgi apparatus, ribosomes, chloroplast and cell wall
Animal cells
Plant cells
compare the structure, chemical composition and function
Cell size and shape
cell size and shape affect SA:V, and explain how that ratio limits cell size
e.g. compare nerve cells and blood cells in animals, or plant root hair cells and chloroplast-containing cells on the surface of leaves
Cell membrane
the role of cell membrane in diffusion and osmosis, endo- and exocytosis
the application of semi-permeable membranes, diffusion and osmosis in various contexts
e.g. attachment of HIV drugs to cells and liposomes, diffusion of protein hormones into cells, staining of cells, separation of bacteria from viruses
e.g. use of honey as an antibacterial agent and berries as a preservative agent by traditional First Nations communities
e.g. desalination of sea water, peritoneal or mechanical dialysis, purification of water, cheese making
General Outcome 3
Analyze plants as an example of a multicellular organism with specialized structures at the cellular, tissue and system levels
Cell size
explain why, when a single-celled organism or colony of single-celled organisms reaches a certain size, it requires a multicellular level of organization and specialization within the plant
Leaf structure and functions
gas exchange
i.e. lenticels, guard cells, stomata and the process of diffusion
photosynthesis
i.e. epidermis including guard cells, palisade tissue cells, spongy tissue cells, and phloem and xylem vascular tissue cells
Transport system
Transpiration consists of cohesion and adhesion properties of water, turgor pressure and osmosis; diffusion, active transport and root pressure in root hairs
i.e. xylem and phloem tissues and the processes of transpiration, including the
Control systems
explain and investigate phototropism and gravitropism as examples of control systems in plants
trace the development of theories of phototropism and gravitropism
e.g. from Darwin and Boysen-Jensen to Went