Cell Types

Try these Balance book on head Hop on one leg Specialisation increases the ability of an organism to carry out complex tasks Some tasks can be completed better by some cells than others.

Cell specialisation Generalised cells can divide and specialise (eg meristem cells in plants & stem cells in animals) Specialised cells have specific structure and function, eg epithelial cells, muscle cells Active cells have more mitochondria, eg animal cells have more than plant cells

Connective tissue Adipose tissue Red blood cells Fat-storage cells No organelles (“dead”)

Epithelia – linings & covers Goblet cells – secrete mucous

Need lots of energy so have lots of mitochondria Muscles cells

Liver cells Liver cell with lots of mitochondria

MENU Quick Quiz Key Words

Key words Animal cell Plant cell Active cells Mitochondria Epithelium Back to menu Animal cell Plant cell Active cells Mitochondria Epithelium Muscle Nervous tissue Connective tissue

Quick quiz Back to menu True / False? Animal cells usually have more mitochondria than plant Centrioles are only found in plant cells Plant cells have a large vacuole Chloroplasts are found in all photosynthesising plant cells Plant cell walls prevent cells bursting Animal cells lose water when placed in pure water Plant cells undergo plasmolysis when placed in pure water Active cells (eg muscle & liver) contain many mitochondria Red blood cells are animal cells so they have a nucleus Goblet cells produce mucous Answers

Quick quiz Back to menu True / False? Animal cells usually have more mitochondria than plant T Centrioles are only found in plant cells F Plant cells have a large vacuole T Chloroplasts are found in all photosynthesising plant cells T Plant cell walls prevent cells bursting T Animal cells lose water when placed in pure water F Plant cells undergo plasmolysis when placed in pure water F Active cells (eg muscle & liver) contain many mitochondria T Red blood cells are animal cells so they have a nucleus F Goblet cells produce mucous T