 The basic building blocks of all living organisms 

 forms a boundary to the cell and it controls what enters and leaves 

 Controls the centre of the cell contains genetic information in the form of chromosomes 

 A boundary of the nucleus controls what enters and leaves 

Made of cellulose - a rigid structure that provides  support

 what is the vacuoles function (large permanent)

 contains chlorophyll a green substance that absorbs light energy from the Sun to perform Photosynthesis

What is the only 2 structures present in all three types of cells

 give the letters of three structures that are also present in animal cells 

 loop of DNA, plasmids, non-cellulose cell wall 

State two structures that are found in bacterial cells but not in plant or animal cells

a thin piece of onion epidermis is placed onto a microscope slide. what else must you do before the slide is ready for observation using a microscope?

 they grow under the soil and do not come in contact with the sunlight 

Suggest why onion cells do not contain chloroplasts

English (UK)

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United Kingdom

DEFAULT (Northern Ireland)

Biology

Unit one animal, plant and bacteria cells 

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