Plant roots growing towards water is another growth response. State two uses of water in a plant. 1 ............................................................................................................................................ ............................................................................................................................................... . 2 ............................................................................................................................................ ............................................................................................................................................... .

Biology

IGCSE&ALevel

CAIE

Exam No：0610_m24_qp_42 Year：2024 Question No：3(b)

Answer:

1.1.1 Describe the characteristics of living organisms by defining the terms:

1.1.2 Define the terms: –

8.2.1 Identify root hair cells, as seen under the light microscope, and state their functions

8.2.2 State the pathway taken by water through root, stem and leaf as root hair cell, root cortex cells, xylem and mesophyll cells

8.2.3 Investigate, using a suitable stain, the pathway of water through the above-ground parts of a plant

8.2.4 Explain that the large surface area of root hairs increases the rate of the absorption of water by osmosis and ions by active transport