Biology- Cell Biology

What are all living things made of?
Cells
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Cells can be one of two things- what are they?
prokaryotic or eukaryotic
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What are prokaryotic cells?
Bacteria cells-they are small and simpler
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What are eukaryotic cells?
include all animal and plant cells and they are complex
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What are eukaryotes?
organisms made up of eukaryotic cells
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What are different parts of the cell called?
subcellular structures
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What does the Nucleus do?
contains genetic material that controls the activities of the cell
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What is cytoplasm?
Gel-like substance where most chemical reactions happen. contains enzymes which control these reactions
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What is a cell membrane?
holds the cell together and controls what goes in and out
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What is mitochondria?
most reactions for aerobic respiration take place here. respiration transfers energy that the cell needs to work
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What are ribosomes?
this is where proteins are made in the cell
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What does a animal cell have?
Nucleus, Cytoplasm, Cell membrane, Mitochondria and Ribosomes
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What is a cell wall?
Its made of cellulose it supports and strengthens the cell
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What is a permanent vacuole?
contains cell sap (weak solution of sugar and salts)
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What is a chloroplast?
where photosynthesis occurs which makes food for the plant
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What is chlorophyll?
found in chloroplasts and it absorbs the light needed for photosynthesis
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What are bacterial cells?
prokaryotes
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What do bacterial cells contain?
Cytoplasm, Cell membrane, Cell wall, single circular strand of DNA in the cytoplasm and plasmid (they do not contain chloroplasts or mitochondria
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What is differentiation?
is the process by which a cell changes to become specialised for its job
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What happens as cells develop to become specialised?
they develop different cub cellular structures and turn into different types of cells. this allows them to carry out specific functions
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What are undifferentiated cells called?
Stem cells
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Examples of specialised cells
Sperm cells, Nerve cells, Muscle cells, Root hair cells, Phloem and Xylem cells
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What do chromosomes contain?
Genetic information
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How are chromosomes shaped?
all coiled up
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How many chromosomes does a human cell have?
23 pairs
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What is mitosis?
stage when the cell divides it helps with growth development and repair
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Other cards in this set

Card 2

Front

Cells can be one of two things- what are they?

Back

prokaryotic or eukaryotic

Card 3

Front

What are prokaryotic cells?

Back

Preview of the front of card 3

Card 4

Front

What are eukaryotic cells?

Back

Preview of the front of card 4

Card 5

Front

What are eukaryotes?

Back

Preview of the front of card 5
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