B1.4 (Specialised animal cells)

Question 1

When do animal cells differentiate

Answer 1

at an early stage of development

Question 2

When do plant cell differentiate

Answer 2

All throughout their lives

Question 3

How are nerve cell adapted to their function

Answer 3

• Axon which carry their impulse
• Dendrites move connections to other cells
• Myelin Sheath for insulation
• Synapses have a lot of mitochondria so they can make transmitter chemicals so that it can pass impulses

Question 4

How are muscle cells adapted to their function

Answer 4

• Special proteins slide over each other
• Contain many mitochondria
• Can store glycogen which can be broken down and used for Respiration

Question 5

How are sperm cell adapted to their functions

Answer 5

• Long tail to move through the female productive system
• Middle section with mitochondria which provides energy for the tail
• Nucleus in head for genes to passed on
• Acrosome to break down outer layer of the egg