What are the conditions necessary for autotrophic nutrition and what are its by products ?

>

>

Chapter 5

NCERT

Class 10

Science

Solutions

7. What are the conditions necessary for autotrophic nutrition and what are its by products ?

Question:

What are the conditions necessary for autotrophic nutrition and what are its by products ?

Answer:

(i) Sunlight, chlorophyll, water (H₂O), and carbon dioxide (CO₂)are the necessary conditions for the autotrophic nutrition.

(ii) carbohydrates in the form of starch (C₆H₁₀O₅)_n and oxygen (O₂) are its byproducts.

More NCERT Questions

Download Free PDF

(All Q's of this Chapter solved)

question pointer

Compare the structure and mechanism of alveoli in the lung and nephron in the kidney.

question pointer

What is the difference between transport of materials in xylem and phloem?

question pointer

Describe the double circulation in human beings. Why is it necessary?

question pointer

What can be the consequences of the deficiency of hemoglobin in our body?

question pointer

How are alveoli designed for maximum exchange of gases?

question pointer

What is the difference between aerobic and anaerobic respiration? Name some organisms which have anaerobic respiration.

question pointer

What is the role of saliva in digestion of food?

question pointer

How does the digestion of fat take place in our body? Where does this process take place?

question pointer

By fission of pyruvate, it gives carbon dioxide, water and energy and this reaction takes place in : (a) cytoplasm (b) mitochondria (c) chloroplast (d) Nucleus.

question pointer

For autotrophic nutrition _________ is necessary. (a) carbon dioxide and water (b) chlorophyll (c) sunlight (d) all of the above.

question pointer

Xylem in plant is responsible for : (a) transport of water (b) transport of food (c) carrying amino acids (d) carrying oxygen

question pointer

The kidneys in human beings are a part of the system for (a) nutrition (b) respiration (c) excretion (d) transportation

question pointer

How is the amount of urine produced regulated ?

question pointer

What methods do plants use to get rid of excretory products?

question pointer

Describe the structure and functioning of nephrons.

question pointer

How does food transfer in a plant?

question pointer

How are water and minerals transported in plants?

question pointer

What are the components of the transport system in highly organized plants?

question pointer

Why is it necessary to separate oxygenated and deoxygenated blood in mammals and birds ?

question pointer

What are the components of the transport system in humans? What are the functions of these components?

question pointer

How is the maximum area in the human lung envisaged for exchange of gases?

question pointer

How is oxygen and carbon dioxide transported in humans?

question pointer

What are the different ways in which glucose is oxidized to provide energy in various organisms?

question pointer

How is a terrestrial organism advantageous over an aquatic organism in obtaining oxygen for respiration?

question pointer

How is the small intestine designed to absorb digested food?

question pointer

What is the function of digestive enzymes?

question pointer

What is the role of acid in our stomach?

question pointer

Where does the plant get the raw material needed for photosynthesis?

question pointer

What is the difference between autotrophic nutrition and heterotrophic nutrition?

question pointer

What processes would you consider essential for the maintenance of life?

question pointer

What raw materials are used by an organism?

question pointer

What criterion would we use to determine if an object is alive?

question pointer

Why is diffusion insufficient to meet the oxygen requirement in multicellular organisms like us?

© 2025, Agrawal Group of Publications All rights reserved.