Consider the following statements about nutrients: 1. Carbohydrates, proteins, fats, vitamins, and minerals are components of food. 2. These components are collectively known as roughage. 3. Only animals require these nutrients, while plants do not. Which of the statements given above is/are correct?

The correct option is (a). Explanation Nutrients are chemical substances found in food that are essential for the growth, maintenance, and repair of the body. They are broadly classified into macronutrients (carbohydrates, proteins, fats) and micronutrients (vitamins, minerals). - Statement 1 is Correct: Carbohydrates, proteins, fats, vitamins, and minerals are the fundamental components of food necessary for sustaining life. These components are collectively termed nutrients. - Statement 2 is Incorrect: These components are collectively known as nutrients, not roughage. Roughage (or dietary fiber) is a distinct component of food derived mainly from plants (e.g., cellulose). While essential for digestion and preventing constipation, roughage does not provide nutrients to the body. - Statement 3 is Incorrect: All living organisms, including plants, require nutrients for survival. While plants are autotrophs (synthesizing their own food via photosynthesis), they require essential mineral nutrients (such as Nitrogen, Phosphorus, and Potassium) absorbed from the soil and water to perform metabolic functions. Key Takeaway: Nutrients include carbohydrates, proteins, fats, vitamins, and minerals. Roughage is dietary fiber, distinct from nutrients. Both plants and animals require nutrients for survival.

NCERT Class 7 Science — Chapter 1: Nutrition in plants

mcqeasy

Consider the following statements about nutrients:

Carbohydrates, proteins, fats, vitamins, and minerals are components of food.
These components are collectively known as roughage.
Only animals require these nutrients, while plants do not.

Which of the statements given above is/are correct?

Official previous-year question

Verified 1 Aug 2026.

Options

A1 only
B2 only
C1 and 3 only
D1, 2 and 3

Did you get this right?

Solution

The correct option is (a).

Explanation

Nutrients are chemical substances found in food that are essential for the growth, maintenance, and repair of the body. They are broadly classified into macronutrients (carbohydrates, proteins, fats) and micronutrients (vitamins, minerals).

Statement 1 is Correct: Carbohydrates, proteins, fats, vitamins, and minerals are the fundamental components of food necessary for sustaining life. These components are collectively termed nutrients.
Statement 2 is Incorrect: These components are collectively known as nutrients, not roughage. Roughage (or dietary fiber) is a distinct component of food derived mainly from plants (e.g., cellulose). While essential for digestion and preventing constipation, roughage does not provide nutrients to the body.
Statement 3 is Incorrect: All living organisms, including plants, require nutrients for survival. While plants are autotrophs (synthesizing their own food via photosynthesis), they require essential mineral nutrients (such as Nitrogen, Phosphorus, and Potassium) absorbed from the soil and water to perform metabolic functions.

Key Takeaway: Nutrients include carbohydrates, proteins, fats, vitamins, and minerals. Roughage is dietary fiber, distinct from nutrients. Both plants and animals require nutrients for survival.

Your note

More from Chapter 1: Nutrition in plants

With reference to the mode of nutrition in living organisms, consider the following statements: 1. Autotrophic nutrition is the mode where organisms take in food prepared by others. 2. Animals are classified as heterotrophs. 3. The term ‘heterotrophs’ refers to organisms that depend on others for nourishment. Which of the statements given above are correct?

easy

With reference to the cell structure described in the text, consider the following statements: 1. The cell membrane encloses the cell and controls the movement of substances. 2. The nucleus is a jelly-like substance that fills the entire cell. 3. Cytoplasm is the hard outer covering found only in plant cells. Which of the statements given above is/are correct?

medium

Consider the following statements about algae: 1. They are generally formed by the growth of organisms in stagnant water. 2. They appear green because they lack chlorophyll. 3. They are autotrophs and can prepare their own food. Which of the statements given above is/are correct?

medium

Consider the following statements regarding insectivorous plants like the Pitcher plant: 1. They trap insects primarily to obtain carbohydrates. 2. They contain chlorophyll and can perform photosynthesis. 3. The pitcher-like structure is a modified part of the leaf. Which of the statements given above are correct?

medium

With reference to saprotrophic nutrition, consider the following statements: 1. It is a mode of nutrition where organisms take in nutrients from dead and decaying matter. 2. Fungi ingest dead matter directly without secreting digestive juices. 3. All fungi are harmful and cause spoilage of food and diseases. Which of the statements given above is/are correct?

medium

Keep practising Chapter 1: Nutrition in plants

Work through every question from this NCERT chapter.

Browse all NCERT Class 7 Science chapters

The correct option is (a).

Explanation

Statement 1 is Correct: Carbohydrates, proteins, fats, vitamins, and minerals are the fundamental components of food necessary for sustaining life. These components are collectively termed nutrients.
Statement 2 is Incorrect: These components are collectively known as nutrients, not roughage. Roughage (or dietary fiber) is a distinct component of food derived mainly from plants (e.g., cellulose). While essential for digestion and preventing constipation, roughage does not provide nutrients to the body.
Statement 3 is Incorrect: All living organisms, including plants, require nutrients for survival. While plants are autotrophs (synthesizing their own food via photosynthesis), they require essential mineral nutrients (such as Nitrogen, Phosphorus, and Potassium) absorbed from the soil and water to perform metabolic functions.

Key Takeaway: Nutrients include carbohydrates, proteins, fats, vitamins, and minerals. Roughage is dietary fiber, distinct from nutrients. Both plants and animals require nutrients for survival.