Understandings:
1.2.U1: Prokaryotes have a simple cell structure without compartmentalization.
1.2.U2: Eukaryotes have a compartmentalized cell structure.
1.2.U3: Prokaryotes divide by binary fission.
1.2.U4: Electron microscopes have a much higher resolution than light microscopes.
Applications:
1.2.A1: Structure and function of organelles within exocrine gland cells of the pancreas
1.2.A2: Structure and function of organelles within palisade mesophyll cells of the leaf.
Skills:
1.2.S1: Drawing of the ultrastructure of prokaryotic cells based on electron micrographs.[Drawings of prokaryotic cells should show the cell wall, pili and flagella, and plasma membrane enclosing cytoplasm that contains 70S ribosomes and a nucleoid with naked DNA.]
1.2.S2: Drawing of the ultrastructure of eukaryotic cells based on electron micrographs.[Drawings of eukaryotic cells should show a plasma membrane enclosing cytoplasm that contains 80S ribosomes and a nucleus, mitochondria and other membrane-bound organelles are present in the cytoplasm. Some eukaryotic cells have a cell wall.]
1.2.S3: Interpretation of electron micrographs to identify organelles and deduce the function of specialized cells.
1.2.NOS: Developments in scientific research follows improvements in apparatus- the invention of the electron microscopes led to greater understanding of cell structure.
[Text in square brackets indicates guidance notes]
1.2.U1: Prokaryotes have a simple cell structure without compartmentalization.
1.2.U2: Eukaryotes have a compartmentalized cell structure.
1.2.U3: Prokaryotes divide by binary fission.
1.2.U4: Electron microscopes have a much higher resolution than light microscopes.
Applications:
1.2.A1: Structure and function of organelles within exocrine gland cells of the pancreas
1.2.A2: Structure and function of organelles within palisade mesophyll cells of the leaf.
Skills:
1.2.S1: Drawing of the ultrastructure of prokaryotic cells based on electron micrographs.[Drawings of prokaryotic cells should show the cell wall, pili and flagella, and plasma membrane enclosing cytoplasm that contains 70S ribosomes and a nucleoid with naked DNA.]
1.2.S2: Drawing of the ultrastructure of eukaryotic cells based on electron micrographs.[Drawings of eukaryotic cells should show a plasma membrane enclosing cytoplasm that contains 80S ribosomes and a nucleus, mitochondria and other membrane-bound organelles are present in the cytoplasm. Some eukaryotic cells have a cell wall.]
1.2.S3: Interpretation of electron micrographs to identify organelles and deduce the function of specialized cells.
1.2.NOS: Developments in scientific research follows improvements in apparatus- the invention of the electron microscopes led to greater understanding of cell structure.
[Text in square brackets indicates guidance notes]