Cell structure- Full SAQs.docx

[Questions] What is a cell?\ **A cell is t**he simplest form of life capable of  displaying all characteristics of life. What is a tissue? A tissue is a group of similar cells carrying out a specific common function.  What is an organ? An organ is a group of different tissues that work together...

[Questions] What is a cell?\ **A cell is t**he simplest form of life capable of  displaying all characteristics of life. What is a tissue? A tissue is a group of similar cells carrying out a specific common function.  What is an organ? An organ is a group of different tissues that work together to perform a particular function What is an organ system? An organ system is a group of different organs that work together to perform a particular function.  What does a transmission electron microscope show? The internal structure of a cell in great detail What does a scanning electron microscope show? It provides a surface view of the specimen What is the function of the diaphragm in a microscope? The diaphragm controls the amount of light reaching the specimen. What focus knob is used to precisely focus the image? The fine focus knob What is an organelle? A cell component that performs specific functions for the cell What three organelles are present in plant cells that are not present in animal cells? Cell walls, chloroplasts and vacuoles  What is the function of the cell wall? It provides strength and support to the cell What is the function of a vacuole? To give the cell strength and to provide storage What is the function of chloroplasts? To produce chlorophyll What is the function of ribosomes? To make proteins What is the function of the nucleus? To control cell activity and provide genetic information What is the function of cytoplasm? It is the site of cellular reactions What is the function of the mitochondria? The site of respiration What are the functions of the cell membrane? To retain cell contents, to recognise the molecules that touch the cells, to control what enters and leaves the cell and to support the cell.  What is the difference between prokaryotic and eukaryotic cells? Prokaryotic cells do not have a nucleus and membrane bound organelles. Eukaryotic cells have a nucleus and membrane bound organelles.  Label this animal cell: A diagram of a cell Description automatically generated  Label this plant cell. Plant and Animal Cells to Label A= cell wall B= cell membrane C= cytoplasm D= chloroplast E= vacuole F= nucleuc G= ribosome