When under certain conditions, the P50 value of haemoglobin rises, the affinity of the pigment of combining with O2 will

(1) Remain same

(2) Rise

(3) Fall

(4) First rise and then fall

Concept Questions :-

Respiratory System: Transport of Gases Part 1
Respiratory System: Transport of Gases Part 2
To view Explanation, Please buy any of the course from below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


In human beings, oblique fissures are associated with :

(1) Right lung

(2) Left lung

(3) Both lungs

(4) None of the above

Concept Questions :-

Respiratory System: Trachea & Basic Anatomy of Lung
To view Explanation, Please buy any of the course from below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Hemoglobin that is bonded to carbon monoxide and therefore cannot transport oxygen, is called

1. carboxyhemoglobin

2. methemoglobin

3. reduced hemoglobin

4. carbaminohemoglobin

Concept Questions :-

Respiratory System: Transport of Gases Part 1
Respiratory System: Transport of Gases Part 2
To view Explanation, Please buy any of the course from below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Which of the following does not shift the oxy-haemoglobin dissociation curve to the right?

1. increased pH

2. increased carbon dioxide

3. increased temperature

4. increased 2,3 -DPG

Concept Questions :-

Respiratory System: Transport of Gases Part 1
Respiratory System: Transport of Gases Part 2
To view Explanation, Please buy any of the course from below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Which of the following is entirely made of cartilage?

1. Nasal septum

2. Larynx

3. Glottis

4. Trachea

Concept Questions :-

Respiratory System: Upper Respiratory Tract
To view Explanation, Please buy any of the course from below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Trachea divides into two a right and left primary bronchi at the level of:

1. Seventh cervical vertebra

2. Third thoracic vertebra

3. Fifth thoracic vertebra

4. Seventh thoracic vertebra

Concept Questions :-

Respiratory System: Trachea & Basic Anatomy of Lung
To view Explanation, Please buy any of the course from below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Contraction of diaphragm:

1. Increases the volume of the thoracic chamber in the antero-posterior axis

2. Increases the volume of the thoracic chamber in the dorso-ventral axis

3. Decreases the volume of the thoracic chamber in the antero-posterior axis

4. Decreases the volume of the thoracic chamber in the dorso-ventral axis

Concept Questions :-

Respiratory Syatem Pulmonary Ventilation
To view Explanation, Please buy any of the course from below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


Volume of air that will remain in the lungs after a normal expiration is about:

1. 1200 ml

2. 2300 ml

3. 4600 ml

4. 5800 ml

Concept Questions :-

Respiratory System: Pulmonary Volumes & Capacities
To view Explanation, Please buy any of the course from below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


The partial pressure of oxygen is equal in

1. Atmospheric air and Alveoli

2. Alveoli and Oxygenated blood

3. Alveoli and Deoxygenated blood

4. Deoxygenated blood and Tissues

Concept Questions :-

Respiratory System: Transport of Gases Part 1
To view Explanation, Please buy any of the course from below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level:


The solubility of carbon dioxide is about times higher than that of oxygen across the respiratory membrane.

1. 20-25

2. 25-50

3. 125-150

4. 200-250

Concept Questions :-

Respiratory System: Transport of Gases Part 1
Respiratory System: Transport of Gases Part 2
To view Explanation, Please buy any of the course from below.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Difficulty Level: