Year 9 Horticulture End of Year test 2025

Soil pH affects plants by:

• influencing nutrient availability

• increasing sunlight absorption

• determining seed size

• controlling rainfall

What are the parts of a seed?

• skin, seed, embryo
• embryo, egg, skin
• seed coat, egg, skin
• cotyledon, embryo, seed coat

Match the following terms with their correct definitions:

• Soil with fine particles that retains water well.

• Root hair cell

• A cell in plant roots that absorbs water and nutrients

• Sandy soil

• Soil with large particles that drains water quickly

• Clay soil

Soil pH is important for planting different types of plants. What does soil pH measure?

• The acidity or alkalinity of soil

• The amount of water in soil

• The temperature of soil

• The color of soil

Daniel is interested in growing more plants like the one he already has, but he doesn't want to use seeds. For which of the following reasons would Daniel take cuttings from his plant?

• To propagate plants asexually

• To make more plants

• To propagate plants sexually

• To make different coloured plants

The types of cuttings that we can take include:

• Stem, leaf, and root cuttings

• Only stem cuttings

• Only leaf cuttings

• Only root cuttings

Plant pruning involves removing certain parts of a plant; what are the main reasons for pruning?

• To remove dead, diseased, and damaged parts

• To increase plant height rapidly

• To change the color of leaves

• To prevent plants from flowering

Identify the node of the plant

Explain why it is important to create plant cuttings below the node on a plant stem

What are the two types of germination?

• Hypogeal and epigeal germination

• Radial and lateral germination

• Primary and secondary germination

• Monocot and dicot germination