What You Need to Know:
Cells, tissues, organs, and organ systems
• Similar cells interact to form tissues that interact to form organs that interact to form organ systems.
• The various levels of organization can be described by their particular functions.
Interactions & Change
• Organ systems interact and change based on the activities of the organism (e.g.running increases respiration and circulation based on muscular needs).
· Vocabulary: skeletal system (skeleton), muscular system (muscles), digestive system (digestion,
stomach), circulatory system (heart), respiratory system (respiration, lungs), excretory system
(excretion, kidney), nervous system (brain), endocrine system, immune system, reproductive system
Processes of Organelles
• Organelles perform specific processes.
Cellular processes within a cell
• The organelles work together to perform cell functions (e.g. photosynthesis, cellular respiration, osmosis/diffusion, active transport, waste removal)
• Organelles use raw materials (e.g. nutrients, water, gases, sunlight) to perform various functions.
• Cells obtain raw materials in different ways (e.g. chloroplasts help use the energy from the sun; how cells in roots obtain water).
· Vocabulary: nucleus, mitochondria, chloroplast/chlorophyll, glucose, cell membrane, cell
wall, cytoplasm, ribosome, protein synthesis, photosynthesis, stomata, respiration, selectively
permeable, passive transport
parts of the cell:
Diffusion and osmosis:
Levels of organization: