Specialised Flashcards
What type of cell has many ribosomes?
Gland cell, which produce enzymes as they make lots of proteins
What cells need tails- flagella?
Sperm, bacteria- to move
Which cells have receptors to detect stimuli?
The light sensitive cone cells in the eye
What receptors carry impulses to the CNS?
Neurons
Which cells have many chlorophyll a in?
Mesophyll or palisade cells of a leaf
What does a root hair cell have so it can absorbs lots of water and mineral ions?
Large surface area
What types of cell have many mitochondria?
Sperm or muscle cell as they require lots of energy
How is a ciliated cell specialised?
Little hairs to removed mucus from lungs or gut
How are fat cells specialised?
Few mitochondria and cytoplasm so more space 4 fat
How are cone eye cells specialised?
Many mitochondria to produce energy 2 see in colour
Outer segment contains visual pigment
Synapse to optic nerve
What does differentiated cells mean
Specialised for a particular function
What 3 main adaptions do fat cells have?
Small amount of cytoplasm and large amounts of fat
Few mitochondria as the cell needs little energy
The can expand to up to 1000x larger that the original cell
What do come cells in the eye have that make it possible for you to see colour
A light sensitive layer
What 3 main adaptations does a cone cell have
Contains a special chemical which changes colour in light it needs energy to change back to its original form
Many mitochondria so you can continually see colour
Has a specialised synapse that connects to the optic nerve so when coloured light makes your visual pigment change an impulse is triggered
How are root hair cells adapted
Increased SA for water to move into the cell
Has a large permanent vacuole that speeds up the movement of water by osmosis
