Question:
Respiration is defined as
Respiration is defined as
Updated On: Jul 28, 2022
- biological oxidation of food materials
- chemical combustion of molecules
- reduction of food molecules
- phosphorylation.
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Respiration is the metabolic process in animals and plants in which organic substances (food materials) are broken down to simpler products with the release of energy, which is incorporated into special energycarrying molecules (ATP) and subsequently used for other metabolic processes. In most plants and animals, respiration requires oxygen, and carbon dioxide is an end product. Thus, respiration can be defined as biological oxidation of food materials.
Was this answer helpful?
0
0
Top Questions on The respiratory system
- Give reasons for the following:
(i) Alveoli in lungs are richly supplied with blood capillaries.
(ii) Respiratory pigment in the blood takes up oxygen and not carbon dioxide.
(iii) During anaerobic respiration, a 3-carbon molecule is formed as an end product instead of CO2 in human beings.
OR
(i) Name the movements that occur all along the gut in human digestive system. How do they help in digestion?
(ii) Where is bile juice stored in human body? List two roles of bile juice.- CBSE Class X - 2024
- Science
- The respiratory system
- In human respiratory system, when a person breathes in, the position of ribs and diaphragm will be:
- CBSE Class X - 2024
- Science
- The respiratory system
- (i) Why is respiratory pigment needed in multicellular organisms with large body size?
(ii) Give reasons for the following:
(a) Rings of cartilage are present in the throat.
(b) Lungs always contain a residual volume of air.
(c) The diaphragm flattens and ribs are lifted up when we breathe in.
(d) Walls of alveoli contain an extensive network of blood vessels.- CBSE Class X - 2024
- Science
- The respiratory system
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: During the transportation of gases, about 20-25 percent of \(CO_2\) is carried by Haemoglobin as carbamino-haemoglobin.
Reason R: This binding is related to high p \(CO_2\) and low p \(O_2\) in tissues.
In the light of the above statements, choose the correct answer from the options given below- NEET (UG) - 2024
- Biology
- The respiratory system
- Match List I with List II :Choose the correct answer from the options given below :
List - I List – II A. Residual Volume i. Maximum volume of air that can be breathed in after forced expiration B. Vital Capacity ii. Volume of air inspired or expired during normal respiration C. Expiratory Capacity iii. Volume of air remaining in lungs after forcible expiration D. Tidal Volume iv. Total volume of air expired after normal inspiration - NEET (UG) - 2024
- Biology
- The respiratory system
View More Questions
Questions Asked in COMEDK exam
- The standard electrode potential for Daniell cell is $1.1\, volt$. What is the standard Gibbs energy for the reaction?
- COMEDK - 2015
- Gibbs Free Energy
- The girth or diameter of the stem increases due to the activity of the following
- COMEDK - 2015
- The Stem
- More number of oxidation state are exhibited by the actinoids than by lanthanoids. The main reason for this is :
- COMEDK - 2015
- The Actinoids
- Two amplifiers are connected one after the other in series (cascaded). The first amplifier has a voltage gain of $10$ and the second has a voltage gain of $20$. If the input signal is $0.01\, volt$, what is the output $ac$ signal ?
- COMEDK - 2014
- Transistors
- Three charges $-q, +Q$ and $-q$ are placed at equal distances along a straight line. If the total $P.E.$ of the system is zero, the ratio $ \frac{Q}{q} $ becomes
- COMEDK - 2014
- Electrostatic potential
View More Questions
Concepts Used:
The Respiratory System
Human Respiratory System is a compound biological system of organs and tissues that helps in gaseous exchange. The system includes airways, lungs, and blood vessels. Its core function is to introduce oxygen and expel carbon dioxide from the body. The atmospheric air is continuously pumped in and out through a system of pipes which are called the conducting airways. There are a great number of muscles and blood vessels involved in the whole process of respiration.
Features of Human Respiratory System:
- The respiratory system is essential for inhalation of oxygen and transportation of the same to the different parts of the body where it is used for cellular respiration.
- The design of the lungs is created in a manner that helps in gaseous exchange in an efficient manner. The other parts of the respiratory system such as the nose, pharynx, larynx, trachea, and bronchi help in the process of bringing in oxygen to the lungs and taking carbon dioxide out of it.
- There is an arrangement of muscles such as the diaphragm and intercostal muscles that aid in the process of human respiration.