Levels of organisation (P1C5)

Question 1

What is the front of a sperm cell called?

Answer 1

The head of a sperm cell is the acrosome.

Question 2

What happens to the end wall of a xylem cell on connecting to another?

Answer 2

Xylem end walls break down after the cells connect to produce a linear tube.

Question 3

What happens to the end wall of a phloem cell on connecting to another?

Answer 3

Phloem end walls have holes to allow sugars to pass, but also provide strength to the cell.

Question 4

What substance strengthens xylem cell walls?

Answer 4

Xylem cell walls are strengthened by lignin.

Question 5

What is the name of the cell that can be found between phloem cells?

Answer 5

Companion cells are found between phloem cells.