Question

what is the part of a process called Respiration? 6th garde


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Answer 1

Answer:

AP.BIO: ENE‑1 (EU), ENE‑1.K (LO), ENE‑1.K.1 (EK), ENE‑1.K.2 (EK), ENE‑1.K.3 (EK), ENE‑1.L (LO), ENE‑1.L.1 (EK), ENE‑1.L.2 (EK), ENE‑1.L.3 (EK), ENE‑1.L.4 (EK), ENE‑1.L.5 (EK), ENE‑1.L.7 (EK)

Cellular respiration is a metabolic pathway that breaks down glucose and produces ATP. The stages of cellular respiration include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation

Answer 2

Answer:

✯Respiration Definition

“Respiration is defined as the biochemical process wherein the living cells of an organism produce energy by taking in oxygen and liberating carbon dioxide from the oxidation of complex organic substances.”

✯What is Respiration?

Respiration is a metabolic process that occurs in all organisms. It is a biochemical process that occurs within the cells of organisms. In this process, the energy (ATP-Adenosine triphosphate) is produced by the breakdown of glucose which is further used by cells to perform various functions. Every living species, from a single-celled organism to dominant multicellular organisms, perform respiration.

✯Types of Respiration

There are two types of respiration:

☆Aerobic respiration

It is a type of cellular respiration that takes place in the presence of oxygen to produce energy. It is a continuous process that takes place within the cells of animals and plants. This process can be explained with the help of the chemical equation:

$\sf \: Glucose(C _{6} H_{12}O_{6}) +Oxygen(6O_{2}) → Carbon dioxide(6CO _{2})+ Water(6H_{2}O)+  Energy (ATP)$

☆Anaerobic respiration

It is a type of cellular respiration that takes place in the absence of oxygen to produce energy. The chemical equation for anaerobic respiration is

$\sf \: Glucose(C _{6}H_{12}O_{6}) → Alcohol 2(C_{2}H_{5}O H) + Carbon dioxide 2(CO_{2}) + Energy (ATP )$

✯Phases of Respiration in Organisms

Respiration occurs in the cytosol and around the plasma membrane in prokaryotic cells. In eukaryotic cells, respiration takes place in the mitochondria, which is also considered as the powerhouse of the cells.

The three phases of Respiration are:

☆glycolysis

The molecules of glucose get converted into pyruvic acid which is oxidized to carbon dioxide and water, leaving two carbon molecules, known as acetyl-CoA.

☆Oxidative Phosphorylation

Oxidative phosphorylation is the process in which ATP molecules are formed as a result of the transfer of electrons from NADH or FADH2 to O2 by a series of electron carriers.

☆Citric Acid Cycle

This is also known as the tricarboxylic acid cycle or Kreb’s cycle. Two ATP molecules are produced in each phase of the citric acid cycle and it takes place within the mitochondrial matrix of a cell.

Explanation:

◉LET'S EXPLORE MORE

✯Respiratory System Definition

“Human Respiratory System is the organ system that involves inhaling of oxygen and exhaling of carbon dioxide to meet the energy requirements.”

✯What is the Respiratory System?

The human respiratory system consists of a group of organs and tissues that help us to breathe. Lungs are the primary organs of the respiratory system which help in the exchange of gases.

✯Respiratory System Parts and Functions

☆Nose

The nose possesses a couple of exterior nostrils, which are divided by a framework of cartilaginous structure termed as the septum. This is the structure that evenly separates the right nostril from the left nostril.

☆Larynx

Two cartilaginous chords lay the framework for the larynx. They are situated at the point of joining the pharynx and trachea. It is also termed as Adam’s apple or the voice box.

☆Pharynx

The nasal chambers open up into a wide hollow space termed as the pharynx. It is a common path for both air and food. It functions by preventing the entry of food particles into the windpipe.

☆Trachea

The trachea or the windpipe rises below the larynx and moves down to the neck. The walls of trachea comprise C-shaped cartilaginous rings which give hardness to the trachea and maintain it by completely expanding.

☆Bronchi

The trachea splits into two tubes termed as bronchi, which enter each lung individually. The bronchi divide into secondary, tertiary, and to bronchioles, which is again further divided into small air-sacs called the alveoli.

☆Lungs

Lungs are the chief centres of the respiration in humans and other vertebrates. They are located in the thoracic cavity of the chest near the backbone and on either side of the heart.

✯Respiratory Tract

The respiratory tract in humans is made up of the following parts:

• External nostrils – For the intake of air.

• Nasal chamber – which is lined with hair and mucus to filter the air and remove dust and dirt.

• Pharynx – It is a passage behind the nasal chamber and serves as the common passageway for both air and food.

• Larynx – Also known as the soundbox as it helps in the generation of sound and thus helps us in communicating.

• Epiglottis – It is a flap-like structure that covers the glottis and prevents the entry of food into the windpipe.

• Trachea – It is a long tube passing through the mid-thoracic cavity.

• Bronchi – The trachea divides into left and right bronchi.

• Bronchioles – Each bronchus is further divided into finer channels known as bronchioles.

• Alveoli – The bronchioles end up into the balloon-like structures known as the alveoli.

• Lungs – We have a pair of lungs, which are sac-like structures and covered by a double-layered membrane known as pleura.