Nutrition In Plants For Class 7 Worksheets With Answers

What is Nutrition in Plants?

Plants, just like humans and animals, need nutrition to survive and grow. Nutrition in plants refers to the process through which plants obtain and utilize essential substances, such as minerals and nutrients, needed for their growth and development.

Types of Nutrition in Plants

Plants can obtain nutrition through two main processes: autotrophic nutrition and heterotrophic nutrition.

Autotrophic Nutrition

Plants that can prepare their food using simple substances like water, carbon dioxide, and sunlight are said to have autotrophic nutrition. They use a process called photosynthesis to convert light energy into chemical energy. This energy is then used to combine water and carbon dioxide to make glucose, a type of sugar that serves as their food.

Heterotrophic Nutrition

Some plants, however, are unable to prepare their own food. They rely on external sources for nutrition. These plants are said to have heterotrophic nutrition. They obtain their nutrition by consuming other organisms or decaying organic matter.

How Do Plants Obtain Nutrients?

Plants absorb nutrients from their surroundings through their roots. The roots have tiny hair-like structures called root hairs that increase the surface area for absorption. Nutrients are present in the soil and are taken up by the roots through osmosis and active transport.

Worksheet on Nutrition in Plants

To test your understanding of nutrition in plants, here are some questions:

1. What is the process by which plants convert light energy into chemical energy called?
2. Which type of nutrition do plants have when they consume other organisms for food?
3. What is the role of root hairs in nutrient absorption?
4. How do plants obtain nutrients from the soil?
5. Name the two main types of nutrition in plants.

Answers to the Worksheet

1. The process is called photosynthesis.
2. Plants have heterotrophic nutrition when they consume other organisms for food.
3. Root hairs increase the surface area for nutrient absorption.
4. Plants obtain nutrients from the soil through their roots via osmosis and active transport.
5. The two main types of nutrition in plants are autotrophic nutrition and heterotrophic nutrition.