Red blood cells Structure: Large surface area Contains haemoglobin which picks up oxygen Has no...
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Transcript of Red blood cells Structure: Large surface area Contains haemoglobin which picks up oxygen Has no...
Red blood cellsRed blood cells
Structure:• Large surface area• Contains haemoglobin which picks
up oxygen• Has no nucleus to make room for
more oxygen
Function:• Carries oxygen from the lungs to
the body and carbon dioxide from the body back to the lungs.
Red Blood CellsRed Blood Cells
Red blood cellsRed blood cells
Function:• These cells are found in your blood.• They are attracted to diseases and bacteria that enter your body• They then ‘eats’ any bacteria/disease so the microbe can’t infect
you and make you ill
White Blood CellsWhite Blood Cells
Nerve cellsNerve cells
Structure:• These are extremely elongated (long) cells• They have many branches at both ends to
connect to other nerve cells• The long axis (main branch) is covered in fat to
prevent the electrical impulses affecting the surrounding parts of your body
Function:• To carry nerve impulses around your
body
Nerve CellsNerve Cells
Sperm cellsSperm cellsSperm CellSperm Cell
Structure:• Have a long tail so they can swim to find an egg• There are enzymes (like scissors) in the head of the
sperm to help the sperm get into the egg• Made in the testis of males
Function:• To carry the father’s genetic information (DNA) to the egg
Sperm cellsSperm cellsMuscle CellMuscle Cell
Structure:• Arranged in bundles called muscle fibres
Function:• Can contract which makes the fibres shorter and
causes bones to move or helps substances move around the body.
Sperm cellsSperm cellsBone CellBone Cell
Function:• Collect calcium from food and allow the growth
and repair of bones• They build up bone around themselves, creating
the body’s skeleton.
Sperm cellsSperm cellsFat CellFat Cell
Structure:• Have a large vacuole in which to store fat molecules
Function:• Protection of vital organs• Insulation• Long-term energy storage
Root hair cellsRoot hair cellsRoot Hair CellRoot Hair Cell
Structure:• Large surface area to absorb lots of
water• Thin cell wall to allow water to pass
through easily• Doesn’t contain any chloroplasts unlike
all other plant cells
Function:• Absorbs minerals and water from soil
Palisade Cell
Structure:• Found in the top of a leaf• Tall and has a large
surface area to catch as much sunlight as possible
• Packed with chloroplasts to absorb sunlight
Function:• to carry out
photosynthesis• to help make plant food.
Palisade CellPalisade Cell
Structure:• They line all the air passages
down to the lungs.• They have tiny hairs called cilia.
Function:• Designed to stop Lung Damage• Hairs sweep mucus with trapped
dust and bacteria back up the throat to be swallowed.
• If you smoke then the hairs die and the mucus builds up leading to the well known smoker’s cough
Nucleus
cilia
Ciliated CellCiliated Cell
Egg (Ovum) CellStructure:• Contains yolk that acts as a food source for the developing embryo (baby)
when fertilised• Much larger than other animal cells (look at the size of the sperm next to it!)
Function:• Carries the mother’s DNA
Cytoplasm containing yolk
Layer of jelly
Nucleus
Egg CellEgg Cell