Specialised Cells

Question 1

What is the difference between breathing (ventilation) and respiration

Answer 1

Breathing: Physical process of inhaling and exhaling air
Respiration: Is a chemical reaction which happens in ever cell to produce energy

Question 2

What is the chemical formula for respiration?

Answer 2

O2 + Glucose ———-> CO2 + H20

Oxygen + Glucose —–> Carbon Dioxide + Water + Energy

Question 3

Where does the oxygen and glucose come from in respiration

Answer 3

Glucose: is sugar which comes from our food and drink

Oxygen comes from: Breathe in

Question 4

What are some adaptations of red blood cells which help it to do its function?

Answer 4

1. Biconcave/disc shaped which increases the surface area to increase the amount of oxygen binding in the cell
2. No nucleus so there is more space for oxygen
3. Contains haemoglobin which binds to the oxygen

Question 5

What is the function of the red blood cells?

Answer 5

Transports oxygen around the body

Question 6

Adaptations of nerve cells

Answer 6

Long Axon – able to transmit electrical nerve signals along a long distance
Branched dendrites - allows for extensive connections with other nerve cells
Myelin Sheath - Electrical insulation of the cell to prevent nerve impulse from being lost

Question 6

Adaptations of nerve cells

Answer 6

Long Axon – able to transmit electrical nerve signals along a long distance
Branched dendrites - allows for extensive connections with other nerve cells
Myelin Sheath - Electrical insulation of the cell to prevent nerve impulse from being lost