Specialised Cells

Question 1

red blood cell function?

Answer 1

to transport oxygen in the blood

Question 2

features of a red blood cell?

Answer 2

• contains the protein haemoglobin
• no nucleus - more space for haemoglobin
• biconcave shaped (pinched disk) to increase the surface area so oxygen can enter and leave the cell more rapidly

Question 3

sperm cell function?

Answer 3

to transport male genetic material to the egg cell

Question 4

sperm cell features?

Answer 4

• flagellum (tail) - to allow the sperm cell to swim
• many mitochondria - to provide the energy needed for swimming
• acrosome - package of enzymes, to digest the jelly layer surrounding the egg cell

Question 5

palisade (leaf) cell function?

Answer 5

to carry out photosynthesis

Question 6

palisade (leaf) cell features?

Answer 6

• many chloroplasts - trap light energy for photosynthesis
• tall and thin - cells can pack tightly together so more of the light reaching the leaf is absorbed