Specialized Cells

Question 1

Function of RBC? -How is it equipped for the job?

Answer 1

Transport oxygen to respiring cells

• T/F are packed full of haemoglobin which binds to the oxygen.
• Biconcave= Larger SA to volume ratio
• No nucleus

Question 2

Function of a Sperm cell? -How is it equipped for the job?

Answer 2

Flagellum for swimming.
Central area, packed w/ mitochondria for E
Enzymes in acrosome for breaking down wall of egg cell.

Question 3

Function of Cilia? -How is it equipped for the job?

Answer 3

Hairs for wafting.

Question 4

Function of Xylem? -How is it equipped for the job?

Answer 4

Transport water and mineral ions from roots/soil to rest of the plant.

• Dead T/F hollow so space
• Lignin in walls keeps them open

Question 5

Function of Phloem? -How is it equipped for the job?

Answer 5

Transport sugar to rest of plant from leaves.

-Need E so couples w/ companion cells which have a lot of mitochondria.

Question 6

Function of Palisade Mesophyll? -How is it equipped for the job?

Answer 6

To P/S .

• Lots of chloroplasts.
• Top of leaves for most sunlight.
• Vacuole for rigidity.

Question 7

Function of Root Hair Cell? -How is it equipped for the job?

Answer 7

To get water/mineral ions into the plant.

• No chloroplasts
• Large SA for absorption of water via osmosis.
• LP Vacuole to speed up osmosis
• Mucho Mitochondria for E for active transport.