A scientist exposed samples of algal cells to two different treatments.

The table shows the observations after each treatment.

Treatment	Cellulose-containing outer layer present	Cell contents remain enclosed	Cell keeps a fixed shape
R	No	Yes	No
S	Yes	No	Yes

Explain how the results show that the cell wall and the cell membrane are different structures with different functions.

Which treatment would cause the same damage to animal cells as it caused to the algal cells? Explain your answer.

A scientist exposed samples of algal cells to two different treatments.

The table shows the observations after each treatment.

Treatment	Cellulose-containing outer layer present	Cell contents remain enclosed	Cell keeps a fixed shape
R	No	Yes	No
S	Yes	No	Yes

Explain how the results show that the cell wall and the cell membrane are different structures with different functions.

Which treatment would cause the same damage to animal cells as it caused to the algal cells? Explain your answer.

1.1 Cell structure

1.1 Cell structure Questions