Biology Unit 1

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What is the function of a plasma (cell surface) membrane?
Regulates the movement of substances into and out of the cell.
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What is the function of the cell wall?
It supports plant cells.
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What is the function of the nucleus?
DNA that makes up chromatin inside the nucleus controls the cells activities.
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What is the function of the nucleolus?
It makes ribosomes
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What is the function of the nuclear pores?
The nuclear pores allow substances to move between the nucleus and the cytoplasm.
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What is the function of Lysosomes?
They contain digestive enzymes which break down worn out components of the cell.
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What is the function of Ribosomes?
This is the site where proteins are made.
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What is the function of the Rough Endoplasmic Reticulum? (R.E.R)
It folds and processes proteins that have been made at the ribosomes.
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What is the function of the Smooth Endoplasmic Reticulum? (S.E.R)
It synthesises and processes lipids.
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What is the function of Vesicles?
They transport substances in and out of the cell (via the plasma membrane) and between organelles.
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What is the function of the Golgi apparatus?
It processes and packages new lipids and proteins and also makes lysosomes.
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What is the function of Mitochondria?
They are the site of aerobic respiration, where ATP is produced.
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What is the function of Chloroplasts?
The site where photosynthesis takes place
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What is the function of the Centriole?
It is involved with the seperation of chromosomes during cell division.
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What is the function of Cilia?
The microtubules allow the cilia to move. This movement is used by the cell to move substances along the cell surface.
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What is the function of Flagellum?
The microtubules contract to make the flagellum move. Flagella are used like outboard motors to propel cells forward.
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What are Prokaryotic cells?
They're single-celled organisms, they are smaller and simpler, e.g. Bacteria
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What are Eukaryotic cells?
They are more complex cells and they include all plant and animal cells.
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Name 3 differences between Eukaryotes and Prokaryotes.
Prokaryotes are smaller than Eukaryotes. Prokaryotes have no nucleus, the DNA is free in the cytoplasm whereas there is a nucleus present in Eukaryotes. Prokaryotes have fewer organelles and no mitochondria, whereas Eukaryotes have the opposite.,....
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Other cards in this set

Card 2

Front

What is the function of the cell wall?

Back

It supports plant cells.

Card 3

Front

What is the function of the nucleus?

Back

Preview of the front of card 3

Card 4

Front

What is the function of the nucleolus?

Back

Preview of the front of card 4

Card 5

Front

What is the function of the nuclear pores?

Back

Preview of the front of card 5
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