Monday, January 20, 2020

Cells


·       Nearly all plants and animals are made up of thousands or millions of microscopic (organs/cells/organelles).
·       All cells contain (blood, cytoplasm, cell wall) enclosed in a cell membrane.
·       (All/most/some) cells have a nucleus.
·       Many chemical reactions take place in the (xylem/vessels/cytoplasm) to keep the cell alive.
·       The nucleus directs the chemical reactions in the cell and also controls cell division/cell membrane/food stores).
·       Plant cells have a cellulose cell wall and a large central (Golgi body/Endoplasmic reticulum/vacuole).
·       Cells are often specialised in their (colour/shape/texture) and activity to carry out particular jobs.
·       Large numbers of similar cells packed together form a (body/organism/tissue).
·       Different tissues arranged together form (organs/organ systems/organisms).
·       A group of related organs makes up a (system/tank/reservoir).
·       The (colour/magnification/clarity) of a specimen can be calculated if the actual size and the size of the image are known.
·       Cytoplasm contains (vacuoles/ribosomes/organelles) such as mitochondria, chloroplasts and ribosomes.
·       The magnification and size of biological specimens can be calculated using millimetres or (picometres/micrometres/metres).


















Answers:


·       Nearly all plants and animals are made up of thousands or millions of microscopic (organs/cells/organelles).
·       All cells contain (blood, cytoplasm, cell wall) enclosed in a cell membrane.
·       (All/most/some) cells have a nucleus.
·       Many chemical reactions take place in the (xylem/vessels/cytoplasm) to keep the cell alive.
·       The nucleus directs the chemical reactions in the cell and also controls cell division/cell membrane/food stores).
·       Plant cells have a cellulose cell wall and a large central (Golgi body/Endoplasmic reticulum/vacuole).
·       Cells are often specialised in their (color/shape/texture) and activity to carry out particular jobs.
·       Large numbers of similar cells packed together form a (body/organism/tissue).
·       Different tissues arranged together form (organs/organ systems/organisms).
·       A group of related organs makes up a (system/tank/reservoir).
·       The (colour/magnification/clarity) of a specimen can be calculated if the actual size and the size of the image are known.
·       Cytoplasm contains (vacuoles/ribosomes/organelles) such as mitochondria, chloroplasts and ribosomes.
·       The magnification and size of biological specimens can be calculated using millimetres or (picometres/micrometres/metres).


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