B1.4 Specialisation In Animal Cells

Question 1

Give 3 adaptations of nerve cells:

Answer 1

Can have either:

• lots of dendrites to make connections to other nerve cells
• an axon that carries the nerve impulse from one place to another
• the nerve endings or synapses are adapted to pass the impulses from one place to another

Question 2

Can you give 3 adaptations for muscle cells:

Answer 2

• they contain special proteins that slide over each other making fibres contract
• they contain many mitochondria to transfer the energy needed for the chemical reactions to take place
• they can store glycogen, a chemical that can be broken down and used for cellular respiration

Question 3

Give 3 adaptations for sperm cells:

Answer 3

• a long tail helps the sperm move through water or the reproductive system
• the middle section is full of mitochondria which transfers energy for the tail to work
• the acrosome stores digestive enzymes for breaking down outer layers of the egg
• a large nucleus contains the genetic information to be passed on