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Biology - cell structure
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Created by
Rowaan Sadiq
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Cards (21)
What
are
cells considered in biology?
The basic
building blocks
of life
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What is the smallest unit of life that can replicate independently?
A
cell
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How do bacteria reproduce when they divide?
Each division produces a whole new
organism
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What does multicellular mean in the context of animals and plants?
They contain many
cells
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How many types of cells does an adult human contain approximately?
Over
40 trillion
cells
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What are the main subcellular structures found in both animal and plant cells?
Cell membrane
Nucleus
Cytoplasm
Mitochondria
Ribosomes
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What is the function of the cell membrane?
Controls
substances
passing in and out
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What does the nucleus contain?
The
genetic material
or
DNA
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What is cytoplasm's role in a cell?
Where
chemical reactions
take place
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What is the primary function of mitochondria?
Provide energy through
aerobic respiration
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What do ribosomes do in a cell?
Site of
protein synthesis
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What are the additional structures found in plant cells that are not in animal cells?
Rigid
cell wall
made of
cellulose
Permanent
vacuole
containing
cell sap
Chloroplasts
for
photosynthesis
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What is the function of the cell wall in plant cells?
Provides
support
and
structure
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What does the permanent vacuole contain?
Cell sap
, a mixture of
sugars
, salts, and water
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What is the role of chloroplasts in plant cells?
Site of
photosynthesis
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What green substance do chloroplasts contain?
Chlorophyll
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What do bacterial cells lack compared to eukaryotic cells?
Mitochondria
and
chloroplasts
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What is the genetic material in bacterial cells called?
A
single
circular
strand
of
DNA
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What are plasmids in bacterial cells?
Small rings of
DNA
carrying extra genes
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What are flagella in bacteria used for?
To
propel
the bacteria for
movement
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What are the key differences between prokaryotic and eukaryotic cells?
Prokaryotic cells:
Unicellular
No nucleus
No mitochondria or chloroplasts
Eukaryotic cells:
Multicellular
Have a nucleus
Contain mitochondria and chloroplasts
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