Digital: Inside a cell video CB1c Cell B1.1 Explain how the sub-cellular 1) Write the word Students study prepared slides Work with student to Specialisation structures of eukaryotic and 'adaptation' on the of some specialised human think up a simple prokaryotic cells are related board. Write down cells. Students identify mnemonic that will help to their functions, including: adaptations of three adaptations within the cells. with remembering the (a) animal cells - nucleus, animal species. Reinforce difference between cell membrane, mitochondria the link between haploid and diploid, Equipment: Prepared and and ribosomes adaptation and such as HAploid cells labelled slides of human cells (b) plant cells - nucleus, cell environment to show the have HAlf the normal and tissues (Suitable slides membrane, cell wall, purpose of the chromosome number. include: human sperm cells, chloroplasts, mitochondria adaptation. Explain that human egg cell, ciliated cells and ribosomes different kinds of cell Using two sizes of sieve lining the oviduct, microvillar ... have different forms and with the same mesh to epithelial tissue of small different functions. This show how quickly the intestine.); light microscope leads to the idea that the Demonstrate an same amount of powder and light source, transparent B1.4 understanding of size and form of different kinds of (e.g. flour) can be ruler or graticule. cells is adapted to their scale in relation to sieved through it. Make function. microscopy, including the link between magnification calculations surface area and rate of 2) Challenge students to absorption. sketch the main features Produce labelled scientific B1.6 of different kinds of cells drawings from observations Digital: To follow that have different of biological specimens using functions related to cell microscopes structures with which they are familiar. Students should annotate their sketches to identify the features that are adaptations to their
Digital: Inside a cell video CB1c Cell Specialisation B1.1 B1.4 B1.6 Explain how the sub-cellular structures of eukaryotic and prokaryotic cells are related to their functions, including: (a) animal cells - nucleus, cell membrane, mitochondria and ribosomes (b) plant cells - nucleus, cell membrane, cell wall, chloroplasts, mitochondria and ribosomes ... Demonstrate an understanding of size and scale in relation to microscopy, including magnification calculations Produce labelled scientific drawings from observations of biological specimens using microscopes 1) Write the word 'adaptation' on the board. Write down adaptations of three animal species. Reinforce the link between adaptation and environment to show the purpose of the adaptation. Explain that different kinds of cell have different forms and different functions. This leads to the idea that the form of different kinds of cells is adapted to their function. 2) Challenge students to sketch the main features of different kinds of cells that have different functions related to cell structures with which they are familiar. Students should annotate their sketches to identify the features that are adaptations to their Students study prepared slides of some specialised human cells. Students identify adaptations within the cells. Equipment: Prepared and labelled slides of human cells and tissues (Suitable slides include: human sperm cells, human egg cell, ciliated cells lining the oviduct, microvillar epithelial tissue of small intestine.); light microscope and light source, transparent ruler or graticule. Work with student to think up a simple mnemonic that will help with remembering the difference between haploid and diploid, such as HAploid cells have HAlf the normal chromosome number. Using two sizes of sieve with the same mesh to show how quickly the same amount of powder (e.g. flour) can be sieved through it. Make the link between surface area and rate of absorption. Digital: To follow
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