Which of the following is/are correct about autotrophic energy storage? 1. Carbohydrates formed are utilised for energy and stored as starch. 2. In humans, energy derived from food is stored in cells as starch. 3. Chlorophyll is not required for the formation of carbohydrates. Select the correct answer using the code below:

Correct Option The correct option is 1 only Explanation Autotrophic nutrition involves the synthesis of organic food (carbohydrates) from inorganic raw materials like carbon dioxide and water, in the presence of sunlight and chlorophyll. This process is known as photosynthesis. Statement-wise Analysis - Statement 1 is Correct: In autotrophs (green plants), carbohydrates produced through photosynthesis provide energy for the plant's metabolic activities. The carbohydrates that are not utilized immediately are stored in the form of starch, which serves as an internal energy reserve. - Statement 2 is Incorrect: Humans are heterotrophs. In the human body, the energy derived from the food consumed is stored in the form of glycogen, not starch. Starch is the storage polysaccharide of plants, whereas glycogen is the storage polysaccharide of animals. - Statement 3 is Incorrect: Chlorophyll is the green pigment present in chloroplasts that is essential for photosynthesis. It traps solar energy, which is then used to convert carbon dioxide and water into carbohydrates. Without chlorophyll, autotrophic carbohydrate formation cannot occur. Key Takeaway Key Takeaway: Plants store excess energy as starch, whereas animals (including humans) store energy as glycogen. Chlorophyll is indispensable for autotrophic nutrition.

Which of the following is/are correct about autotrophic… - NCERT Class 10 Science MCQ

NCERT Class 10 Science — Chapter 1: Life Processes

mcqmedium

Which of the following is/are correct about autotrophic energy storage?

Carbohydrates formed are utilised for energy and stored as starch.
In humans, energy derived from food is stored in cells as starch.
Chlorophyll is not required for the formation of carbohydrates.

Select the correct answer using the code below:

NCERT textbook question

From NCERT Science - class 10 · Page 81

Options

A1, 2 and 3
B1 and 3 only
C2 only
D1 only

Did you get this right?

Solution

Correct Option

The correct option is

1 only

Explanation

Autotrophic nutrition involves the synthesis of organic food (carbohydrates) from inorganic raw materials like carbon dioxide and water, in the presence of sunlight and chlorophyll. This process is known as photosynthesis.

Statement-wise Analysis

Statement 1 is Correct: In autotrophs (green plants), carbohydrates produced through photosynthesis provide energy for the plant's metabolic activities. The carbohydrates that are not utilized immediately are stored in the form of starch, which serves as an internal energy reserve.
Statement 2 is Incorrect: Humans are heterotrophs. In the human body, the energy derived from the food consumed is stored in the form of glycogen, not starch. Starch is the storage polysaccharide of plants, whereas glycogen is the storage polysaccharide of animals.
Statement 3 is Incorrect: Chlorophyll is the green pigment present in chloroplasts that is essential for photosynthesis. It traps solar energy, which is then used to convert carbon dioxide and water into carbohydrates. Without chlorophyll, autotrophic carbohydrate formation cannot occur.

Key Takeaway

Key Takeaway: Plants store excess energy as starch, whereas animals (including humans) store energy as glycogen. Chlorophyll is indispensable for autotrophic nutrition.

Your note

More from Chapter 1: Life Processes

Which organism is widely used in the fermentation process to produce ethanol and carbon dioxide?

easy

Assertion (A): Root pressure alone is sufficient to move water over the heights of tall trees. Reason (R): Active absorption of ions into the vascular tissue of roots causes water to flow in continuously, creating a pushing pressure.

medium

Match the unicellular organism features with their descriptions: List I (Feature/Organism) | List II (Description) A. Amoeba feeding mechanism | 1. Cilia move food to a specific spot B. Paramoecium feeding mechanism | 2. Variable and irregular C. Amoeba body shape | 3. Temporary finger-like extensions (pseudopodia) D. Paramoecium body shape | 4. Definite and fixed Select the correct answer using the code given below

medium

The rhythmic contraction and relaxation of muscles in the alimentary canal that pushes food forward is termed:

easy

Which organ in the human body is responsible for the secretion of bile, which aids in the emulsification of fats?

easy

Keep practising Chapter 1: Life Processes

Work through every question from this NCERT chapter.

Browse all NCERT Class 10 Science chapters