Bài 1 Máy tính giúp em quan sát hạt đậu nảy mầmnảy mầm

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What is the first visible sign of germination in a bean seed?

• The appearance of true leaves.

• The emergence of the root.

• The stem growing above ground.

• The cotyledons turning green.

What is the primary function of the roots that develop from the bean seed?

• To produce flowers.

• To absorb water and nutrients from the soil.

• To perform photosynthesis.

• To support the fruit.

What part of the bean plant typically emerges from the soil first after the root has established?

• The flower bud.

• The main stem with cotyledons.

• Secondary roots.

• The fruit.

As the bean plant grows, what significant change occurs in its above-ground structure?

• The roots grow upwards.

• The stem shrinks.

• New leaves develop and expand.

• The cotyledons remain the primary photosynthetic organs.