specialised animal cells

Question 1

differentiation

Answer 1

unspecialised stem cells produce cells with specialised structures

Question 2

meristem tissue (plants)

Answer 2

found in shoot and root tips

Question 3

embryos (humans)

Answer 3

totipotent - divide to produce any type of body cell

Question 4

function of erythrocytes (red blood cells)

Answer 4

carry oxygen from lungs to respiring tissues

Question 5

large amounts of haemoglobin

Answer 5

holds oxygen

Question 6

no nucleus

Answer 6

makes space for more haemoglobin

Question 7

biconcave shape

Answer 7

maximizes SA for rapid diffusion of oxygen

Question 8

function of neutrophils (type of white blood cells)

Answer 8

ingest and destroy microorganisms

Question 9

large amounts of lysosomes

Answer 9

enzymes kills ingested cells

Question 10

lobed nucleus

Answer 10

greater flexibility

Question 11

tail of sperm cell

Answer 11

• moves by energy released by mitochondria in midpiece
• propels the cell

Question 12

contains acrosome

Answer 12

specialised lysosome that releases enzymes so cell can penetrate ovum coat of egg