Question 1

What are the main parts of a plant and their functions according to the Singapore Curriculum?

Accepted Answer

In the Singapore Curriculum, the main parts of a plant are roots, stems, leaves, flowers, and fruits. Roots anchor the plant and absorb water and nutrients from the soil. Stems support the plant and transport nutrients and water between roots and leaves. Leaves are the site of photosynthesis, where sunlight is converted into energy. Flowers are involved in reproduction, and fruits protect seeds and aid in their dispersal.

Question 2

How do plants perform photosynthesis, and why is it important in the plant system?

Accepted Answer

Photosynthesis is a process where plants use sunlight, carbon dioxide, and water to produce glucose and oxygen. This occurs in the chloroplasts of leaves. Photosynthesis is crucial as it provides energy for the plant's growth and development and releases oxygen into the atmosphere, which is essential for life on Earth.

Question 3

Why are roots considered an essential part of the plant system in Science?

Accepted Answer

Roots are vital because they anchor the plant in the soil, preventing it from being uprooted by wind or water. They also absorb water and essential nutrients from the soil, which are necessary for the plant's growth and survival. Additionally, roots can store food and nutrients for the plant.

Question 4

What role do flowers play in the reproduction of plants?

Accepted Answer

Flowers are the reproductive structures of plants. They contain the reproductive organs: stamens (male) and pistils (female). Pollination occurs when pollen from the stamen is transferred to the pistil, leading to fertilization. This process results in the formation of seeds, which can grow into new plants, ensuring the continuation of the plant species.

Question 5

How do stems contribute to the overall plant system, and what are their functions?

Accepted Answer

Stems play a crucial role in supporting the plant, holding up leaves, flowers, and fruits. They act as conduits, transporting water, nutrients, and food between roots and leaves. Stems also store nutrients and can perform photosynthesis in some plants. Their structure helps the plant maintain its shape and reach for sunlight.

Plants and their Parts

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