Specialised Cells Flashcards
What are specialised cells?
They have specific roles in the organism of which they are part. Their structure is adapted to their function. They are often grouped together with other similar cells in tissues.
What is the function of ciliated cells?
They push and move mucus from one place to another. The cilia in the respiratory tract move mucus containing trapped microbes and dust.
What is the function of red blood cell?
Transport oxygen from the lungs to the body tissues for aerobic respiration.
How has a ciliated cell adapted?
Has a thin layer of tiny moving ‘hairs’ called cilia.
How has a red blood cell adapted?
-Contains haemoglobin, a pigment that carries oxygen.
-Does not contain a nucleus, which increases the volume of haemoglobin in the cell.
-Very flexible so it can move through narrow blood vessels.
What’s the function of root hair cell?
They absorb water and minerals.
What’s the function of xylem cell?
They transport water and minerals up the stem to leaves and flowers.
What’s the function of phloem cell?
They transport sugars, amino acids, other substances both up and down the stem to leaves, flowers and roots.
How is root hair cell adapted to its function
A long thin ‘hair’ extends from each cell into the soil increasing the root’s surface area. Each root has many thousands of root hairs, which can make the root look furry.
How is xylem cell to its function
Dead cells are joined end to end to form a continuous tube. They have no cytoplasm. Their walls contain lignin for strengthening.
How is phloem cell to its function
Made of tube-like living cells joined end to end. They do have cytoplasm. This means that the cells are living.
