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Transcript
There are two basic types of cells…. PLANT CELLS LESSON OBJECTIVES 1. Label and identify the major structures that make up a typical plant cell. 2. Describe what these structures do. 3. Name and describe how 2 specialised plant cells are adapted for their job. Section through a palisade cell of a leaf (plant cell) cell membrane nucleus chloroplast large sap vacuole cellulose cell wall cytoplasm MINI PLENARY Question 1 ? a. cytoplasm b. cell wall c. chloroplast d. vacuole MINI PLENARY Question 2 ? a. cytoplasm b. cell wall c. chloroplast d. vacuole MINI PLENARY Question 3 a. cytoplasm b. cell wall c. chloroplast d. vacuole ? LESSON OBJECTIVES 1. Label and identify the major structures that make up a typical plant cell. 2. Describe what these structures do. 3. Name and describe how 2 specialised plant cells are adapted for their job. Plant Cells • Cell wall made of cellulose which strengthens the cell and gives it support. • Chloroplasts, found in all the green parts of the plant. They are green because they contain chlorophyll. They absorb light energy to make food by photosynthesis. • Sap filled vacuole is a space in the cytoplasm filled with cell sap, which is important for keeping the cells rigid to support the plant. MINI PLENARY Question 4 What is the function of the chloroplast? 1. 2. 3. 4. Controls the cell Stores water and mineral ions Makes glucose by photosynthesis Controls what enters and leaves the cell MINI PLENARY Question 5 What is the function of the cell wall? 1. 2. 3. 4. Supports and protects the cell Stores water and mineral ions Controls the cell Controls what enters and leaves the cell MINI PLENARY Question 6 What is the function of the sap vacuole? 1. 2. 3. 4. Supports and protects the cell Controls what enters and leaves the cell Controls the cell Keeps cell rigid to support the plant LESSON OBJECTIVES 1. Label and identify the major structures that make up a typical plant cell. 2. Describe what these structures do. 3. Name and describe how 2 specialised plant cells are adapted for their job. SPECIALISED CELLS How many different specialised cells can you name in plants. Examples of Specialised Cells Animal Muscle cell Plant White blood cell Leaf palisade cell Red blood cell Root hair cell Ovum (egg cell) Guard cell Nerve cell Fat cell Sperm Ciliated epithelial cell Xylem cell PLANT CELLS ? PHLOEM AND XYLEM CELLS LEAF PALISADE CELLS GUARD CELLS ROOT CELLS Palisade Cell • Designed for Photosynthesis • Found in the top of a leaf • Tall and has a large surface area to absorb water and minerals. • Packed with chloroplasts to help make plant food. Nucleus Chloroplasts Root Hair Cell • Designed for absorbing. Vacuole •Thin cell wall makes it easy for minerals to pass through. thin cell wall •Has a large surface which helps it to absorb water and minerals. Cell membrane •Found in a plant root. COMPARISON OF ANIMAL & PLANT CELLS Comparing animal and plant cells Found in both animal and plant cells Found only in plant cells cell membrane cellulose cell wall nucleus large sap vacuole cytoplasm chloroplast