specialised cell Flashcards
How is a red blood cell adapted for its function?
No nucleus for more space, biconcave shape for more oxygen, contains haemoglobin.
How is a nerve cell adapted?
Long to carry signals, branches to connect to other cells, insulated axon.
How is a muscle cell adapted?
Contains lots of mitochondria for energy
How is a sperm cell adapted?
Tail for swimming, lots of mitochondria for energy, streamlined shape.
How is a root hair cell adapted?
Large surface area for absorbing water and minerals
How is a palisade cell adapted?
Lots of chloroplasts for photosynthesis, tightly packed
Why do muscle cells have lots of mitochondria?
To provide energy for movement.
why do animal cells burst in pure water but plant cells don’t?
Animal cells have no cell wall for support.
Why do cells need ribosomes?
To make proteins for growth and repair
What happens to a plant cell in salt water?
t becomes plasmolysed – water leaves the vacuole, making the cell shrink.)
What are organelles?
Specialized structures inside a cell that perform specific functions.
Why do plant cells have a rigid shape while animal cells do not?
Plant cells have a cell wall made of cellulose that provides structure and support.
why do animal cells rely on their cytoskeleton for shape and support?
hey don’t have a cell wall, so they use a network of protein filaments for structure
What is the function of the nuclear membrane?
Controls what enters and leaves the nucleus
