Biology Year 9

Year 9 biology outline

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What two types of cells are all living organisms made of?
Eukaryotic and Prokaryotic cells
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What types of cells have cell walls?
Plant cells
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What are some examples of Eukaryotic cells?
Humans, dogs, fungi, protists
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What are protists?
They are a type of single celled organism that can sometimes cause diseases that can harm animals and plants.
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Name a disease protists can cause
Malaria
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Do all protists cause disease?
Not all protists cause disease
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What are the two types of protists?
Animal-like protists(protozo) and plant-like protists(algae)
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What is protoza?
It is a type of protist that contains a single cell and is able to move.
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what are prokaryotic cells?
They are the smallest and the simplest of cell structures.
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What are prokaryotic cells made up of?
They only have one DNA molecule in each cell and they dont have a nucleus, mitochondria, cloroplasts or golgi.
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What is the only thing prokaryotic cells need to reproduce?
Cell division
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What cell is larger, Eukaryotic or prokaryotic?
The size of a Eukaryotic cell is larger.
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What cell type is a Eukaryotic cell?
Multicellur
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What cell type is a Eukaryotic cell?
Unicellur
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Which cells organelles have lots of membrane bound?
Eukaryotic cells
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What can be found in a plant cell?
Chloroplasts, vacuole, cell wall, cytoplasm, cell membrane, nucleus, mitochondria.
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What can be found in an animal cell?
Cytoplasm, cell membrane, nucleus, mitochondria.
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What bacteria can cause disease?
Pathogens
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What are pathogens?
They are single celled and a disease causing organism that are very small.
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Are all bacteria that can cause disease bad?
No, some are useful such as for cheese, yogurt and sewage.
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What does the order of magnitude do?
It tells you how much bigger something is in comparison to something else
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What is the resolution?
It is the degree to which you can distinguish between to objects that are very close together.
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How do you work out the magnification?
size of mage/size of real object
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How do you work out the image size?
magnification x size of real object
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How do you work out the size of the real object?
image size/magnification
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How do cells differ?
Different functions
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What are Differentiated cells known as?
Specialised cells
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Name an example of an Undifferentiated cell
Stem cells
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What is cell differentiation?
The process by which cells become speciallised for different funcytions.
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When does cell differentiation occur?
When an rganism develops, the cells differentiate to form different types of cell.
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When do most types of animal cells differentiate?
At an early stage.
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When do most types of plant cells differentiate?
They can differentiate throughout life.
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What allows dissolved substances to pass in and out of cells?
Diffusion
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What is the function of the nucleus?
It contains genetic material which controls the activities of the cell.
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What is the function of the cytoplasm?
It is where most chemical processes take place controlled by enzymes.
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What is the function of the cell membrane?
It controls the movement of substances into and out of the cell.
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Other cards in this set

Card 2

Front

What types of cells have cell walls?

Back

Plant cells

Card 3

Front

What are some examples of Eukaryotic cells?

Back

Preview of the front of card 3

Card 4

Front

What are protists?

Back

Preview of the front of card 4

Card 5

Front

Name a disease protists can cause

Back

Preview of the front of card 5
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