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22 Cards in this Set
- Front
- Back
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What are single celled organisms |
Organisms that consists of only one cell |
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An example of a single celled organism |
Bacteria or amoebae |
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Example of a multicellular organism |
Animals and plants |
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What type of microscope is used to see most cells |
Light microscope |
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What’s the name of the structures that build up cells |
Organelles |
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What do organelles do |
Perform different functions for the cells |
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Which organelles are in an animal cell |
Cell membrane, Cytoplasm, Nucleus, mitochondrion, ribosomes |
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Which extra organelles are in a plant cell |
Cell wall, vacuole, chloroplasts |
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Definition of a cell membrane |
An oily layer that controls what can pass into and out of the cell (partially permeable) |
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Cytoplasm |
A viscous thick fluid which is the site of many of the chemical reactions that take place in the cell. It therefore contains many different molecules including enzymes which control the different chemical reactions. |
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Nucleus |
It controlled the activities of the cell. (It contains strands of DNA called chromosomes which act as a set of instructions; determining the structure and function of the cell |
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Do cytoplasms appear in just plant cells |
No |
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Do ribosome appear in both cells |
Yes |
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What do specialised cells mean |
Cells that are adapted to their rolls |
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What is the process called when a cell becomes specialised |
Differentiation |
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What is the role of a red blood cell |
To transport oxygen from the lungs to all the cells in the body |
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What are the adaptations of red blood cells |
No nucleus and biconcave shape |
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Why does having no nuclei help red blood cells |
Allows for more space for haemoglobin so more oxygen can be transported |
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Why does having a biconcave shape help red blood cells |
Increases the surface area to volume ratio so that the rate of oxygen diffusion is as fast as possible |
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How are nerve cells adapted |
Long axon and many branched dendrites |
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Why does having a long axon help nerve cells |
Allows for fast communications across long distances such as from your toe to your spine |
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Why does having many branded dendrites help nerve cells |
Allows communication with multiple other neurones |
