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() The chemical Auxin prevents lateral buds from growing by silencing gene expressionParts of a Leaf (Pages 60-62) Copyright © 2010 McGraw-Hill Ryerson Ltd.Transpiration Transpiration – the evaporation of water from the leaves through the stomata () Copyright © 2010 McGraw-Hill Ryerson Ltd.Chloroplasts Chloroplasts – the organelles within plant cells that use the Sun’s energy to chemically convert carbon into glucose (called photosynthesis) Copyright © 2010 McGraw-Hill Ryerson Ltd. Specialized Cells and Tissues in Plants (-59) Copyright © 2010 McGraw-Hill Ryerson Ltd.Repair, Replacement, and Growth The plant grows upward, “getting taller.” The plant grows outward or “thickens.” “Buds” and “Type of Growth” Copyright © 2010 McGraw-Hill Ryerson Ltd. () Copyright © 2010 McGraw-Hill Ryerson Ltd.Specialized Cells and Tissues in Plants Tissue – a cluster of similar cells that share the same specialized structure and function Organ – a combination of several types of tissue working together to perform a specific function Meristematic Cell – an unspecialized plant cell that gives rise to a specific specialized cell () Copyright © 2010 McGraw-Hill Ryerson Ltd.Specialized Cells and Tissues in Plants () Copyright © 2010 McGraw-Hill Ryerson Ltd.Click the “Start” button to review plant tissue and cell types.

Different genes code for different proteins.Ĭell Differentiation – a stage of development of a living organism during which specialized cells form.

What will happen to the seed as it continues to grow? () Copyright © 2010 McGraw-Hill Ryerson Ltd.2.1 Plant Cells, Tissues, and Organs Cell Specialization – the process by which cells develop from similar cells into cells that have specific functions within a multicellular organism Cells specialize as a result of producing different proteins.

Presentation on theme: 'UNIT 1 Tissues, Organs, and Systems of Living Things.' - Presentation transcript:UNIT 1 Tissues, Organs, and Systems of Living ThingsActivity 2-1 Observing Plant Growth What happened to the seeds when they were soaked in water? What did you observe inside the “split open” seed?