Page 17 - ACE YR IGCSE A TOP APPROACH TO BIO

3 Xylem is an important tissue that can be found in a vascular plant.

(a) Xylem is made of tissue.
Define the term tissue.

[2]

(b) State two roles of xylem vessels.
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[2]

(c) Which feature of the tissue in (b) helps the cell to carry out its function?

[2]

[Total: 6]

Clone Oct / Nov 2014

4 Fig. 4.1 shows the cells from the lining of the respiratory tract.

Goblet cell

Cell membrane

Nucleus

Cilla Mucus
Fig. 4.1

(a) Based on Fig. 4.1, state two details each for the function of nucleus and cell membrane.

Nucleus

[2]

Cell membrane

[2]

Chapter 2 Organisation of the Organism 15

Chapter 2.indd 15 30/03/2022 3:08 PM