IGCSE General plant nutrition, transport and coodination

What is the process by which plants make their food using sunlight, carbon dioxide, and water?

• Chlorophyll

• Respiration

• Hydroponics

• Photosynthesis

What are the two types of vascular tissues responsible for transporting water and nutrients in plants?

• phloem and roots

• stem and leaves

• xylem and phloem

• chlorophyll and stomata

Which plant hormone is responsible for promoting cell elongation and growth?

• Gibberellin

• Cytokinin

• Abscisic acid

• Auxin

In which part of the plant does mineral absorption mainly occur?

• leaves

• stems

• flowers

• roots

What are the growth responses of plants to external stimuli called?

• Tropisms

• Photosynthesis

• Hydrotropism

• Germination

What is the process by which water is lost from the leaves of plants?

• Condensation

• Transpiration

• Precipitation

• Evaporation

What is the primary pigment involved in photosynthesis?

• Melanin

• Chlorophyll

• Keratin

• Hemoglobin

Which vascular tissue is responsible for transporting water from roots to the rest of the plant?

• Phloem

• Xylem

• Epidermis

• Cambium

Which essential mineral nutrient is needed by plants for chlorophyll synthesis?

• Magnesium

• Potassium

• Iron

• Calcium

What is the growth response of plants towards light called?

• Phototropism

• Thigmotropism

• Hydrotropism

• Geotropism