“Gaseous exchange “refers to the process by which oxygen is absorbed into the bloodstream and carbon dioxide is released from the body, occurring primarily in the lungs and tissues.
Class 10th biology chapter 1 notes
How many lobs are present in right lung: 3
The primary chemical stimulus for breathing is the concentration of: Carbon dioxide in blood.
The process of gaseous exchange involves: Getting oxygen from the air and removing carbon dioxide
Stomata are present in: Epidermis
Which diisease is caused by Streptococcus pneumoniae: Pneumonia
Which structure actively helps in taking the air out of lungs: Diaphragm
Point out the FALSE statement about respiration: In emphysema, the walls of alveoli break and there is more surface area.
In normal condition human respiration rate is: 16 to 20 per minute
It is also called sound box: larynx
The rate of breathing at rest in human is: 16-20 times per minute
Percentage of CO2 in exhaled are during breathing is: 4%
Gaseous Exchange in cow takes in: Alveoli
The respiratory disease that is the destruction of the walls of Alveoli is: Emphysema
Lungs are enclosed in a membrane called: pleural membrane
What type of blood vessels surrounds the alveoli: Capillary
The length of trachia is __________ cm approximately: 12
In which of the following disease, the patient has usually lost 50% to 70% of his/her lung tissue when symptoms appears: Emphy sema
In wood seems and roots the gaseous: lenticels
Most of the gaseous exchange in a leaf occurs through: Stomata
The uncontrolled cell divisions in lungs tissue is called: cancer
Total chemicals in tobacco smoke are: 4000
Main role to give out air form lungs is: Diaphragm
During exercise or other hard physical works the breathing rate may increase up to: 30-40 times per minute
The length of trachea is: 12 cm
Which kind of blood vessels are present around the alveoli: Capillary
Which gas us absorbed through stomata of plant during night: Oxygen
Every year World Day is celebrated on: 31-May
Cutting of walls of Alveoli called: Emphysema
The structural and functional unit of lungs is: alveolus
Which disease is involved in the breakdown of air sacs of the lungs: Emphysema
The glottis is guarded by a flap of tissue called: Epiglottis
What percentage of oxygen inhaled form air during breathing: 21%
A disease involving the breakdown of air sacs of the lungs is: emphysemsa
The respiratory centre is present in: Brain
Which bring deoxygenated blood form heart into lungs: Pulmonary Artery
How many pairs of ribs in humans: 12
In man the system of gaseous exchange is: respiratory system
How many carciogens are present in cigarette smoke: 50
The major cause of lungs cancer is: smoking
In first stem of glycolysis glucose molecules breaks ans divide into two _______ molecules: Pyruvic acid
Amount of carbon dioxide in inspired air is: 0.04%
In man the correct passage of air is: nostrils, nasal cavity, Pharynx, larynx , bronchi, trachea , bronchioles , alveolar duct, alveoli
The inflamation of bronchi or bronchioles is caled: Bronchites
In which of the following gaseous exchange occur through stomata: The leaves and young stems
Rate of breathing depends upon concentration of which gas: Carbon dioxide
The muscles of ribs are called: Intercoastal muscles
Which of the following is called voice box: Larynx
Cartilage is absent in: bronchioles
All the alveoli of one side unite to form: Lung
The normal breathing rate in buman being is: 16-20 times per minute
How many bronchi are there in the air passageway: Two
The correct list of respiratory disorders is: Asthma, emphysema. pneumonia , bronchitis
For gaseous exchange the leaf and young stems have in their epidermis: Stomata
The percentage of oxygen from air which we inspired is: 21%
Amount of nitrogen in expired air is: 79%
Most of the gaseous exchange in a leaf occurs through: Stomata
C-Shaped cartilaginous rings are present in the wall of: Trachea
Where does the gaseous exchange occur in humans: Larynx
The number of lobes in right lung is: 3
In plants, gaseous exchange takes place as: CO2 is absorbed and O2 is removed
Where does the gaseous exchange occur in humans: Alveoli
In human which process occurs in alveoli: Gaseous Exchange
Glottis is a narrow opening at the floor of: Pharynx
No. of bronchi in the air passage way are: 2
The rate of breathing during exercise or other hard:= physical work is: 30-40 times
A cough, mild wheezing, fever chills and shortness of breath are symptoms of: Bronchitis
A thick muscular layer beneath lungs is called: Diaphragm
Power of speaking is only gifted to: Human being
In human and other higher animals, the exchange of gases is carried out by: Lungs
Amount of oxygen in expired air is: 16%
Important : Review all previous years’ 10 class past papers for comprehensive practice and better exam preparation.