Different Cells (Plant/Animal/Sperm/Stem)

Plant Cell:

• Vacuole (Contains cell sap, storing sugars and salts)
• Cell Membrane (Controls what enters and leaves the cell)
• Cell Wall (Protects the cell and keeps it's shape)
• Nucleus (Contains DNA and controls cell activities)
• Chloroplasts (Containing Chlorophyll for photosynthesis and plant pigment)
• Cytoplasm

Animal Cell:

• Nucleus (Contains DNA and controls cell activities)
• Cell Membrane (Controls what enters and leaves the cell)
• Cytoplasm
• Mitochondria (Where aerobic respiration takes place)
• Ribosomes (Found in cytoplasm, where proteins are made) 

Sperm Cell:

• Haploid Nucleus - (Half the number of chromosomes than a normal cell)
• Acrosome - (Containing enzymes to break egg membrane in order to enter)
• Tail - (To allow them to swim to the egg)
• Mitochondria - (To provide energy)

Egg Cell:

• Haploid Nucleus - (Half the number of chromosomes than a normal cell)
• Cell Membrane - (Only allows one sperm to fertilise the ovum)
• Cytoplasm - (Contains all the nutrients and mitochondira needed for mitosis)
• Mitochondira - (To provide energy)

Both cells are haploid cells rather than diploid cells because they are gametes (sex cells).       When fertilisation occurs, an egg and sperm fuse together to create a zygote. 

• Stem cells can ________ into specialised cells.
• Although, ______ do not grow.

• Plants continue to grow until they ___.
• They grow in the ____ tips, shoot ___ and in buds. 
• Plants have _______ cells which have the ability to differentiate.

You can measure growth by:

• Length
• Wet Mass - which changes dependant on how much _______ is present.
• Dry Mass - which requires the living organism _____.

Stem cells can be used as future ______ for diseases such as Parkinsons, making people ____ again if they are ___________.

Stem cells would be used from an ________. Embryonic stem cells have the ability to form into ___ cell ____. The stem cells average humans have, can only become a _____ amount of cell types.

People are _______ this research as it could be seen as _______ _____ a life. However, _________ stem cells need to be used rather than ______ stem cells as they are more able to differentiate into __________ cell types.