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Learning Framework
Concept
The natural world and its laws
Content
The student understands the structure and function of systems enable our survival.
Skills
- Investigating and outlining
- Hypothesising and reasoning
- Interpreting, analysing and concluding
Resource Key
When accessing content use the numbers below to guide you:
LEVEL 1:
brief, basic information laid out in an easy-to-read format. May use informal language. (Includes most news articles)
LEVEL 2:
provides additional background information and further reading. Introduces some subject-specific language.
LEVEL 3:
lengthy, detailed information. Frequently uses technical/subject-specific language. (Includes most analytical articles)
Key Terms
- Diffusion The movement of atoms or molecules from one part of a medium to another caused by their random thermal motion. The result of diffusion is a tendency for particles to move from an area of higher concentration to an area of lower concentration.
- Digestion The catabolic process in the digestive tract where ingested food is converted into simpler, soluble and diffusible substances that can be assimilated by the body
- Enzyme An enzyme is a biomolecule that can be synthesized biologically (naturally occurring) or through other processes (synthetically). Its main function is to act as a catalyst to speed up a reaction without itself being changed in the process.
- Hormones (physiology) Any of the substances produced and secreted by an endocrine gland, and then transported via the bloodstream to reach the target organ or tissue; a synthetic compound acting like a natural hormone (botany) A phytohormone, i.e. any of the various plant compounds that are essential to the growth and differentiation of plant tissue
- Invertebrate Refers to any of the animals lacking a vertebral column.
- Meiosis meiosis is the process of cell division that results in the production of a haploid “daughter” cell with a haploid chromosomal number of a diploid “parent” (“original”) cell.
- Membrane A thin layer of tissue that forms a boundary of a cell or cell part.
- Mitosis In biology, mitosis refers to the cellular process where a single cell divides resulting in two identical cells. By identical, it means that both cells have the same number of chromosomes and genetic content.
- Organ A group of tissues that perform a specific function or group of functions.
- Osmosis The natural passage or diffusion of water (or other liquids) through a semi permeable membrane.
- Peristalsis Peristalsis is the automatic wave-like movement of the muscles that line your gastrointestinal tract. Peristalsis moves food through your digestive system, beginning in your throat when you swallow and continuing through your oesophagus, stomach and intestines while you digest.
Systems
CELL ORGANISATION
The body of a multicellular organism is organised at different levels, starting with the cell. Cells are organised into tissues, and tissues form organs. Organs are organised into organ systems and finally into an organism.
CELLS
Both plant and animal cells contain common structures, though some structures are unique to each of them. The cell wall, the large central vacuole, and the chloroplast are structures found in a plant cell. The centrioles and the prominent Golgi apparatus are structures unique to an animal cell.
GROWTH AND REPRODUCTION
This program looks at sexual and asexual reproduction, starting at the cellular level, with clear explanations of meiosis and mitosis. Using a range of graphics and footage to explain biological processes, it explores various types of asexual reproduction, including fission, budding, fragmentation, spores, vegetative and artificial propagation. Sexual reproduction in animals is covered – including direct and indirect development – as well as sexual reproduction in flowering plants.
RESPIRATORY SYSTEM
This video describes the key structures of the respiratory system and how gas exchange occurs in the alveolus.
Oliver
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