B1 ///2 Flashcards
What are nerve cells specialised to do
Carry electrical impulses around the body
What do nerve cells have to do there job
-Many dendrites to make connections to other cells
-an axon to carry the impulse
-synapses which pass impulses.
What are muscle cells specialised to do
Contract and relax
What do muscle cells contain to be able to do their job
-Special proteins that slide over each other
-a store of glycogen
What are sperm cells specialised to do
Carry the genetic information from the male parent
What do sperm cells have to be able to do their job
-A long tail to move
-mitochondria
-acrosome to break down layers of the egg
What are the 4 specialised cells in a plant
Root hair
Photosynthetic
Xylem
Phloem
What do root hair cells do
increase the surface area of the root to absorb water and minerals
What do root hair cells have
Large permanent vacuole
Many mitochondria
What does a photosynthetic cell do
Make their own food .
What do photosynthetic cells have
Chloroplast to trap light
What do xylem cells do
Transport water and minerals up the stem
What do xylem cells have to do their job
Lignin to make tube strong
What does a phloem cell do
Is the tissue that transports food made by photosynthesis to the planf
What do phloem cells have to do their job
Sieve plates
Mitochondria
